Introduction

In English language teaching, published materials often promise efficiency, structure, and pedagogical reliability. Though this sounds promising, for many teachers, especially those working with adult learners in online settings, ready-made materials rarely arrive as finished products. They just arrive as possibilities. They offer a starting point, not a final answer. This tension became particularly clear to me while taking the British Council’s TeachingEnglish: How to Adapt Resources course. One of the course units, focused on adapting and selecting lesson plans, invited teachers to reflect on how they search for materials online, why lesson plans often need adaptation, and how such materials can be reshaped for lower-resource contexts, large classes, and inclusive teaching. Although the course often speaks to school-based settings and younger learners, its central message remains highly relevant for teachers like me who work with young adults and working professionals online.

I found myself both aligned with and distant from the course at the same time. I agreed with the course’s emphasis on contextual relevance, learner inclusion, and teacher flexibility; however, I also realized that many examples need more refining when transferred to the world of online university classes and corporate English instruction. In my context, adaptation is not simply a matter of replacing a worksheet or simplifying a task. It is a pedagogical act of translation: translating materials created for one context into tasks that respond to adult schedules, workplace realities, digital fatigue, and the communicative priorities of learners who often come to class after a full day of work. This essay, my 575^th post on my edublog, argues that adapting lesson plans for online adult learners requires more than methodological creativity. It requires contextual reading, selective use of online resources, differentiation, and a willingness to co-create learning experiences that are professionally relevant, inclusive, and sustainable for both teacher and learner.

Searching for lesson plans: from abundance to relevance

The British Council course begins by offering practical guidance on how teachers can search for lesson plans online. It recommends searching by topic, age, level, and teaching purpose, and then evaluating whether a lesson can be used as it is or whether it needs adaptation. This guidance is sensible, especially in a digital environment where the amount of available material can be overwhelming. However, abundance does not equal relevance. The challenge is not simply finding a lesson plan but finding one that can survive contact with one’s actual learners.

My own reflection in the course makes this tension explicit: apart from looking for pictures to use in PowerPoint presentations, I “barely look for materials online,” particularly because many of them are not suitable for my online college students or my online corporate learners (Acuña Solano, 2026). Instead, I tend to begin with the coursebook and then adapt, expand, or transform it with the support of AI tools such as ChatGPT. When I do search online, I usually search for grammar points, charts, infographics, or explanations that I can modify to suit my two main teaching scenarios. This habit reveals something important: for teachers of adults, searching for resources is rarely about locating a ready-to-use lesson in a single category such as “travel” or “food.” It is more often about locating adaptable fragments, visuals, prompts, scenarios, explanations, and task ideas, that can be repurposed into a lesson with clearer relevance to learners’ academic or professional realities.

This perspective resonates with the British Council’s broader view that existing lesson plans can save preparation time, but only if teachers evaluate and adapt them for their own context (British Council, n.d.). Claire Ross (n.d.), writing for TeachingEnglish, similarly emphasizes that selecting and adapting resources must begin with an understanding of context, teacher needs, and expected outcomes. In other words, a lesson plan is not “good” in the abstract; it is useful only insofar as it fits a concrete teaching situation. For adult online teachers, that fit depends on questions such as these: Does the lesson acknowledge learners’ professional goals? Can it be delivered effectively in a synchronous online class? Does it assume physical classroom movement, shared printed handouts, or child-centered topics that would alienate adult learners? Does it help students communicate in contexts they actually inhabit?

These questions have gradually become part of my own informal checklist whenever I encounter online materials. The issue is not whether a lesson plan looks polished, but whether it can be recontextualized without losing its pedagogical value. In this sense, searching for lesson plans is less about consumption and more about discernment.

Why adaptation is pedagogically necessary

The British Council course invites teachers to think about why published materials often need adaptation and offers several reasons: limited resources, large classes, learners with different needs, and cultural relevance. These are essential concerns, but in my reflective journaling I felt the need to expand the list. In my context, adaptation is also shaped by internet connectivity, the downloading format of the material, job-related relevance, and the need to introduce “twists” that make the content meaningful for working adults. These additions may seem practical rather than theoretical, yet they are deeply pedagogical because they determine whether learning can happen at all.

Adult learners bring with them constraints that are different from those of children or adolescents. Many attend class after work, between family obligations, or while managing professional stress. Some need English for meetings, presentations, interviews, negotiations, or email communication; others need it for academic advancement. Their motivation is often high, but their time and cognitive energy are limited. This means that a lesson plan that is linguistically sound may still fail if it ignores learners’ professional identities or if it requires a level of preparation, emotional investment, or playful participation that does not fit the moment in which adults are learning.

Knowles’s (1984) principles of andragogy remain useful here. Adult learners, he argues, tend to be self-directed and problem-oriented, and they value learning that is immediately relevant to their lives. In language teaching, this suggests that adaptation should not only simplify or personalize content; it should also increase functional relevance in terms of work-related scenarios. A speaking activity about “planning a school picnic” may be harmless, but for corporate learners it may be far less motivating than a role-play about disagreeing diplomatically in a meeting, giving feedback to a colleague, or handling a project delay. Likewise, a reading lesson on childhood routines may be less compelling for university students than a task about professional burnout, remote collaboration, or the ethics of AI at work.

In that sense, adaptation is not a secondary act performed after “real teaching” has been planned. It is central to planning itself. Tomlinson (2013) argues that materials development should be driven by learner needs, affective engagement, and opportunities for meaningful use of language. When published materials do not fully address those needs, teachers must intervene wisely and promptly. That intervention may involve changing the topic, adjusting the task sequence, rewriting instructions, adding scaffolding, replacing examples, or altering the output expected from learners. The goal is not to disrespect the original material, but to bring it into dialogue with the teaching reality at hand.

Lower-resource contexts and the online classroom: a necessary reframing

One of the most interesting sections of the British Council course discusses how to adapt lesson plans for lower-resource contexts. It addresses situations where teachers may not have access to a projector, photocopier, internet connection, or audio equipment. These examples are highly relevant worldwide, yet they need to be reinterpreted for online teaching. In my course reflection, I noted that I could not meaningfully select any of the listed resources because the online environment restructures the question altogether. In a virtual classroom, students may use paper or digital notes; there is no need for scissors, photocopiers, or a separate audio player; and if there is no internet, there is no synchronous class (Acuña Solano, 2026). Computers or tablets are not optional extras but conditions for participation.

This does not mean that online teaching is a high-resource paradise. It simply means that resource constraints take a different form. In virtual adult classes, the real limitations often involve unstable connectivity, camera fatigue, poor audio, limited digital literacy, lack of privacy at home, and uneven access to time and attention (Acuña Solano, 2026). A lesson plan that assumes smooth breakout-room transitions, collaborative online whiteboards, constant screen sharing, and simultaneous use of several platforms may be technically impressive but pedagogically fragile. Therefore, adapting for a lower-resource online context often means simplifying the digital architecture of the lesson rather than adding more tools (Acuña Solano, 2026).

For instance, instead of requiring learners to move across multiple websites, an adult online teacher might set up a lesson around a single slide deck, a chat box, and a pair-work discussion. Instead of assigning a collaborative poster on an external platform, the teacher might ask learners to orally summarize, compare options, or type key points in the chat. Instead of depending on a sophisticated listening platform, the teacher may read a text aloud, use a short self-recorded audio clip, or ask learners to take roles and simulate a dialogue. In this sense, the spirit of the British Council’s advice still applies: good lessons do not depend on how much technology one has, but on how teachers engage learners and help them use language meaningfully (Acuña Solano, 2026).

What changes is the form of adaptation. In the online adult classroom, adaptation often means stripping away digital excess so that communication can remain central. It means recognizing that every additional platform increases cognitive load. It also means understanding that a beautifully designed task can fail if it asks too much of learners who are already dividing their attention between work messages, family responsibilities, and the demands of being visibly present on screen.

Differentiation, mixed ability, and inclusive design for adults

If one idea from the course aligns especially strongly with my own teaching, it is the emphasis on inclusion and differentiation. The course asks teachers to reflect on learners with different abilities, needs, and preferences. In my own practice, mixed-ability teaching is one of the defining realities of university-level and adult online instruction. Students often enter the same class with different experience levels in English, different confidence levels, different professional backgrounds, and different relationships to speaking. Some are quick, verbal, and willing to take risks; others are thoughtful but hesitant, accurate but slow, or highly competent readers who struggle to speak spontaneously.

Rather than treating this variation as a problem to be erased, I have increasingly treated it as a design principle. In my course reflection, I explained that instead of creating a single speaking activity for the whole class, I create six sketchpads and allow students to choose two of them. This gives them a measure of agency and lets them engage with topics they find more meaningful. In corporate classes, I often create six scenarios based on workplace dilemmas so that learners can discuss situations that feel closer to their own professional world (Acuña Solano, 2026). This is, in essence, differentiation through choice.

The British Council’s adaptation guide highlights several forms of differentiation: changing content, process, and product; providing scaffolding; and extending tasks for those who need more challenge (British Council, 2025). These principles are highly compatible with adult online teaching. Tomlinson’s (2014) model of differentiated instruction similarly emphasizes flexible pathways toward shared learning goals. Not all learners need the same route to reach the same destination. In an online speaking lesson, for example, differentiation may involve offering two versions of a prompt, allowing learners to choose between discussing a case study or a personal scenario, giving sentence starters to those who need support, or inviting stronger learners to reformulate or expand ideas more critically.

Importantly, differentiation in adult classes should not feel infantilizing. Adults usually do not want visibly “easy” tasks that expose them as weaker learners. What tends to work better is layered design: tasks that are open enough to allow learners to participate at different depths. A discussion question such as “How should a manager respond to an employee who consistently misses deadlines?” can generate simple answers from a lower-level student and nuanced responses from a more advanced one. A role-play can include optional challenge cards for learners who want to extend the interaction. A writing task can offer a model and a vocabulary bank without making those supports mandatory. In this way, inclusion becomes less about separating learners and more about widening access to participation.

Relevance, professional identity, and the adult learner

Perhaps the most significant adaptation I make to published resources is not methodological but thematic. I adapt for relevance. In my course notes, I remarked that many online lesson plans do not connect to my learners’ lives and that coursebooks often need to be reshaped for working adults in corporate positions. This is one of the clearest lessons I have learned from teaching adults: relevance is not decorative; it is motivational infrastructure (Acuña Solano, 2026).

Dörnyei (2001) has shown that learner motivation in language classrooms is strongly influenced by task value, learner self-concept, and the perceived usefulness of classroom activities. Adult learners are especially sensitive to this. They may politely complete a task about fictional teenagers or leisure activities they have long outgrown, but their energy changes when the topic touches performance reviews, difficult clients, hybrid work, intercultural misunderstandings, or career aspirations. In those moments, language stops being a school subject and becomes a tool for self-expression and professional action (Acuña Solano, 2026).

This is why I often replace textbook speaking tasks with sketchpads built around corporate dilemmas, workplace tensions, ethical decisions, or communication breakdowns. These scenarios allow learners to draw on lived experience while practicing target language in a way that feels purposeful (Acuña Solano, 2026). They also allow me to co-create meaning with students. Their examples, frustrations, and insights enrich the lesson in ways that no generic worksheet can. In this sense, adapting materials for adults is not only about teacher intervention; it is also about recognizing learners as contributors to the lesson. The British Council course itself clearly emphasizes the value of learner contributions and the importance of adapting materials to local realities (British Council, 2026). For adult learners, this often means making room for their professional narratives, not merely asking them to perform language in artificial situations.

Adaptation as reflective professionalism

What emerges from all of this is that adaptation is not a technical afterthought but a form of reflective professionalism (Acuña Solano, 2026). It requires the teacher to read the lesson plan, read the learners, and read the teaching environment simultaneously. It also requires humility. Not every adaptation works. Some tasks still need more refining after they are taught. Some attempts at relevance become too specific; others remain too generic. Some differentiated tasks create choice but not enough challenge. Some digital simplifications go too far and reduce interaction. Adaptation, then, is not a one-time intervention but an ongoing cycle of planning, testing, observing, and revising.

For this reason, I increasingly see adaptation as something that can benefit from collaboration. Teachers do not always have to work alone. In institutions where colleagues teach similar learner profiles, teachers can share the workload by exchanging adapted speaking prompts, comparing what worked in online discussions, or building a shared bank of workplace scenarios and differentiated tasks. The British Council course mentions the value of collaboration and even encourages teachers to co-create lesson plans. In adult ELT, this collaborative spirit could be particularly valuable, since so many of us spend time reinventing materials to make them suitable for professional learners. A shared repository of adaptable adult-focused tasks, categorized by language aim, workplace function, CEFR level, and modality, would save time and reduce isolation.

Conclusion

The British Council’s How to Adapt Resources course offers a useful framework for thinking about lesson plan adaptation, but its greatest value lies not in the literal examples it provides; it lies in the mindset it encourages. It asks teachers to stop treating published materials as fixed scripts and instead approach them as flexible resources that must be interpreted through context. For teachers of young adults and working adults online, this mindset is indispensable. Our learners do not simply need lessons that are grammatically sound or visually attractive. They need lessons that acknowledge their schedules, their goals, their professional identities, their mixed proficiency profiles, and the digital conditions under which they learn.

My own reflections throughout the course confirm that adaptation is not peripheral to my teaching; it is at the heart of it. Because I work in online university and corporate contexts, I rarely use online lesson plans exactly as they are. I search selectively, adapt relentlessly, and often build speaking tasks from scratch so that learners can engage with situations that resemble their own lives. I use differentiation through choice, simplify digital delivery when necessary, and treat relevance as a central criterion rather than a luxury. In doing so, I have come to see adaptation not as evidence that published materials are inadequate, but as evidence that teaching is interpretive work (Acuña Solano, 2026). Materials can open doors, but teachers must decide which ones are worth entering, which ones must be rebuilt, and which ones must be left behind.

Ultimately, adapting resources for adult online learners is an ethical as well as pedagogical commitment. It means refusing to ask learners to inhabit a classroom world that ignores who they are. It means shaping lessons that are not merely usable, but meaningful. And it means recognizing that in language teaching, context is not a background variable. It is the very place where learning either becomes possible or remains theoretical.  

San José, Costa Rica

Friday, July 17, 2026

📚 References

Acuña Solano, J. (2026). Personal reflections and notes on Module 2, Unit 2 of the British Council course “TeachingEnglish: How to adapt resources” [Unpublished course notes].

British Council. (2025). How to adapt resources for your learners [PDF]. TeachingEnglish. https://www.teachingenglish.org.uk/sites/teacheng/files/2025-06/LG_I%20%282025%29_How%20to%20adapt%20resources%20for%20your%20learners_FINAL2.pdf

British Council. (n.d.). TeachingEnglish: How to adapt resources. TeachingEnglish. https://www.teachingenglish.org.uk/training/courses/teachingenglish-how-adapt-resources

Dörnyei, Z. (2001). Motivational strategies in the language classroom. Cambridge University Press.

Knowles, M. S. (1984). The adult learner: A neglected species (3rd ed.). Gulf Publishing.

Ross, C. (n.d.). Selecting and adapting learning resources for teachers: Ensuring relevance to context. TeachingEnglish, British Council. https://www.teachingenglish.org.uk/professional-development/teacher-educators/planning-learning/selecting-and-adapting-learning

Tomlinson, B. (2013). Developing materials for language teaching (2nd ed.). Bloomsbury.

Tomlinson, C. A. (2014). The differentiated classroom: Responding to the needs of all learners (2nd ed.). ASCD.

ELT Material Adaptation Strategies and Contexts

ELT Material Adaptation Strategies and Contexts by Jonathan Acuña

Click to enlarge the infographic

Introduction

The teaching of English in online environments has undergone a significant transformation during the last decade. Technological developments, globalization, remote work culture, and artificial intelligence have altered not only how teachers teach, but also how learners interact with language itself. Under the current system of digital communication and virtual instruction, English teachers increasingly face the challenge of adapting coursebook content to suit learners whose linguistic needs emerge directly from professional, academic, and social realities.

For teachers who work with young adults and working professionals rather than children, this challenge becomes even more complex. Adult learners generally expect immediate relevance, practical communication opportunities, and content that reflects real-life professional situations. Materials that may function effectively in primary or secondary school settings often fail to resonate with adult learners because the communicative stakes are different. Corporate learners, university students, and professionals usually approach English as a tool for negotiation, collaboration, presentations, networking, and career advancement.

The British Council course TeachingEnglish: How to Adapt Resources offers valuable insights into the role of reference resources and supplementary materials in lesson planning. However, many of its ideas are initially presented within contexts more associated with younger learners. This essay seeks to reinterpret and adapt those ideas through the lens of adult online English instruction. Drawing from personal reflections, classroom experience, and scholarly perspectives, this paper proposes a practical framework for understanding how supplementary materials can be adapted to meet the needs of adult learners in digital environments.

In particular, this essay, my 571^st post on my blog, examines how teachers can move beyond textbook dependency, use AI-generated resources effectively, design visually functional materials, and create activities that actively involve learners while maintaining professional relevance. Through this exploration, the paper argues that supplementary materials should not simply decorate lessons; instead, they should function as bridges connecting pedagogical objectives with authentic communication.

Understanding Reference Resources in ELT

Reference resources have traditionally played an important role in lesson planning. According to the British Council (n.d.), “Teaching aids and supplementary material can be enormously helpful resources for you and your learners when you're in the classroom. But what about the planning stage? Where do you get help when you're planning your lessons? Teachers sometimes need to explore resources other than the coursebook to find help or information that they need when preparing for a class. These are ‘reference resources’.”

This definition highlights an important reality in ELT: effective teaching cannot depend entirely on the coursebook. Although textbooks provide structure, pacing, and curricular coherence, they rarely capture the complexity of real communicative situations experienced by adult learners. As Harmer (2015) explains, teaching materials should be adaptable because learners’ contexts differ dramatically across educational environments. A business professional attending online English lessons after work possesses needs that differ substantially from those of adolescent learners in traditional school systems.

From a mere reflective perspective, I have come to observe that: “As the old TV series’ motto for The X Files, ‘The Truth is Out There’, the contextualization of unit content, to make it meaningful for learners, is out there in the real world. During our planning time, the thematic unit materializes with supplementary material coming from sources not included in our textbooks” (Acuña Solano, 2026).

This reflection of mine captures one of the most significant shifts in modern language teaching: the movement from textbook-centered instruction toward contextualized learning ecosystems. Real-world communication now provides much of the material that teachers adapt for pedagogical purposes. News articles, corporate scenarios, online discussions, AI-generated simulations, and authentic audiovisual content increasingly shape classroom interaction.

Tomlinson (2013) argues that language materials should expose learners to meaningful and authentic language use rather than simplified artificial examples detached from reality. For adult learners especially, authenticity often determines motivation. If learners perceive materials as disconnected from their professional or academic lives, engagement tends to decrease rapidly.

The reflections from the British Council course also reveal the wide range of reference resources teachers employ. What I noted is that the interviewed teachers, Tony and Gwen, use “magazines, journals, the LearnEnglish website, printed and/or online dictionaries, the teacher’s book, grammar books for teachers, and collocations dictionaries” (British Council n.d.). What I have further reflected on my own teaching practices can be summarized like this:

“When I come to think what I use for my planning lessons for my online working adult students, I tend to visit the coursebook, which is online, to get topics that can be ‘modified’ to make them more suitable for the corporate world. I frequently use Thesaurus.com to help learners with new vocabulary by finding synonyms, and ChatGPT has become my planning assistant by working with refined prompts to get suitable materials for communication activities” (Acuña Solano, 2026).

This reflection of mine illustrates how AI tools are beginning to reshape lesson planning. Rather than replacing teachers, AI systems increasingly function as collaborative planning assistants capable of generating role plays, discussion questions, situational dialogues, and adaptable communication tasks. Nevertheless, the teacher remains responsible for evaluating quality, contextual appropriateness, and pedagogical alignment.

Mishan and Timmis (2015) emphasize that technology itself does not guarantee effective learning. Instead, the effectiveness of digital tools depends on how thoughtfully they are integrated into pedagogical objectives. AI-generated materials can become either superficial shortcuts or highly sophisticated teaching aids depending on the teacher’s expertise.

Supplementary Materials and Adult Learners

The British Council (n.d.) proposes several principles regarding supplementary materials. According to the course, supplementary materials should:

Although these recommendations provide a useful starting point, adult education requires a more nuanced interpretation. Adult learners often prioritize relevance, efficiency, and practical application over entertainment-oriented activities.

I reflected critically on these principles, and this is what I entered in my reflective journaling diary:

“I’m drawn to agree with the list provided by the British Council, but I have my observations. If supplementary material is AI-generated (like in my case), it shouldn’t involve much time as long as you have already ‘refined’ your creation prompt. ‘Be fun to use’ may not be a strict condition for me. If the material is suitable for a given purpose and objective among corporate students, it is fine” (Acuña Solano 2026).

This reflection raises an important pedagogical issue. In adult education, “fun” may not function as the primary criterion for effectiveness. Professional learners often appreciate intellectually stimulating or professionally applicable tasks even if those tasks are not conventionally entertaining. Richards (2006) argues that adult learners tend to value activities that demonstrate immediate usefulness and communicative practicality.

For example, a negotiation role play between business executives may not appear “fun” in the same sense as a classroom game designed for children. However, it can generate high levels of engagement because learners recognize its relevance to workplace communication. Therefore, supplementary materials for adults should perhaps be evaluated according to professional authenticity rather than entertainment value alone.

Visual design also requires reinterpretation. As I have come to explain to many colleagues of mine, “AI-generated supplementary material needs to be visually arranged to guide students, not for the sake of beauty. And follow the ‘less is more’ principle: If you are using PPTx, don’t overcharge the slide with too many elements” (Acuña Solano 2026). This insight aligns closely with principles from multimedia learning theory. Mayer (2009) argues that excessive visual information can overload learners cognitively and reduce comprehension. In online adult instruction, visual clarity becomes essential because learners often attend classes after work, under fatigue, or while multitasking within professional environments.

Thus, visually attractive materials should not simply aim for aesthetic appeal. Instead, they should reduce cognitive overload, guide attention, and support comprehension. The threshold between effective visual support and visual distraction can be remarkably thin in digital learning environments.

AI and the Transformation of Material Design

One of the most significant developments in contemporary ELT is the integration of artificial intelligence into lesson planning. Under the current system of rapidly evolving educational technology, AI tools increasingly assist teachers with brainstorming, content generation, vocabulary adaptation, and communicative task creation.

Jonathan Acuña Solano’s reflections demonstrate a practical approach to AI integration:

“Whatever is AI-generated by the teacher through prompting has to actively involve learners.”

This statement highlights a crucial distinction between passive and active material design. AI-generated content becomes pedagogically valuable only when it creates opportunities for interaction, reflection, negotiation of meaning, and communicative production.

Krashen’s (1985) Input Hypothesis emphasizes the importance of comprehensible input, but communicative theorists such as Swain (1995) later argued that meaningful output also plays a central role in language acquisition. Adult learners especially benefit from tasks that require them to articulate opinions, negotiate perspectives, and solve problems collaboratively.

AI-generated materials can facilitate this process when used strategically. For example, teachers may generate:

However, there must also be a pedagogical framework governing how these materials are implemented. Otherwise, AI risks producing large quantities of disconnected activities without coherent learning progression.

An important issue that emerges here is teacher agency. Rather than depending entirely on pre-made commercial materials, teachers increasingly curate, adapt, and generate their own resources. This shift allows educators to tailor lessons more precisely to learners’ realities. At the same time, AI integration introduces ethical and pedagogical considerations. Teachers must evaluate accuracy, cultural appropriateness, complexity level, and communicative relevance. AI can generate content quickly, but meaningful adaptation still requires human judgment.

Reusability, Teacher Toolkits, and Professional Sustainability

The British Council (n.d.) also raises questions regarding the sustainability and reusability of supplementary materials:

“There are lots of questions to ask yourself in relation to supplementary materials. Perhaps most importantly, think about time: Do you have sufficient time to make the materials properly? Can you ask colleagues to help you? Secondly: Are the materials just a one-lesson resource or do they have high usability?”

This concern becomes particularly relevant in online adult education, where teachers often manage multiple groups with varying professional backgrounds. Material creation can easily lead to burnout if teachers attempt to reinvent every lesson from scratch.

Acuña Solano (2026) reflecting on these ideas states that:

“For corporate students and college students, my prompts include the creation of sketchpads, role plays, and discussion panels.”

This statement suggests the existence of a reusable pedagogical toolkit. Rather than designing isolated activities, teachers can develop adaptable formats that can be mapped onto multiple thematic units and communicative goals.

This type of adaptable design supports professional sustainability. Teachers working in demanding online contexts need efficient systems that maintain pedagogical quality without requiring excessive preparation time.

Tomlinson (2011) notes that effective materials often emerge through gradual refinement rather than instant perfection. Teachers continuously modify resources based on learner feedback, classroom interaction, and communicative outcomes. In this sense, supplementary materials evolve organically. They are not static products, but dynamic teaching instruments shaped by ongoing experience.

Authenticity and Professional Relevance

Authenticity remains one of the most important considerations in adult language education. Adult learners generally want to see clear connections between classroom tasks and real-life communication demands. The internet has significantly expanded teachers’ access to authentic resources. Acuña Solano (2026) mentions several platforms used for visual content:

These repositories provide copyright-friendly images that can contextualize discussions, presentations, and role plays. Visual prompts become particularly valuable in online classes because they help reduce the emotional distance created by digital interaction.

Nevertheless, authenticity involves more than simply using real images or texts. According to Gilmore (2007), authentic materials should reflect authentic communicative purposes. In other words, learners should not merely analyze language passively; they should use language to accomplish meaningful objectives.

Based on my experience with working adults, meaningful objectives may include:

Based on Acuña Solano 2026 Reflective Journaling and Teaching Practice

Therefore, supplementary materials must cross the threshold from language practice into communicative simulation. The closer tasks approximate real communicative pressure, the more transferable the learning becomes. This perspective also challenges overly simplified views of motivation. Adult learners may remain highly motivated even during demanding activities if those activities align with professional aspirations and communicative realities.

The Breakdown of Textbook Dependency

Traditional ELT models frequently positioned the coursebook as the central authority within the classroom. However, digital environments and evolving learner expectations have accelerated the breakdown of textbook dependency. This does not mean that coursebooks lack value. Rather, it means they function increasingly as foundational frameworks rather than complete pedagogical systems.

Richards (2015) explains that effective teachers adapt materials continuously to suit learner needs, contextual realities, and emerging communicative situations. Online adult education intensifies this requirement because professional realities change rapidly.

Many older textbooks fail to address these communicative realities adequately. As a result, teachers supplement units with updated examples, authentic scenarios, and technological contexts.

Acuña Solano’s (2026) reflections illustrate this adaptive process clearly. The coursebook provides thematic direction, but supplementary materials transform abstract topics into meaningful professional communication. This transformation requires creativity, critical thinking, and pedagogical flexibility. It also requires teachers to remain lifelong learners themselves.

Conclusion

The adaptation of supplementary materials represents one of the essentials of modern English Language Teaching, particularly within online adult education. While many teacher-training resources continue to focus primarily on younger learners, adult students operate within fundamentally different communicative ecosystems shaped by professional demands, technological change, and real-world interaction.

The reflections emerging from the British Council course TeachingEnglish: How to Adapt Resources demonstrate that supplementary materials should not merely function as decorative additions to textbook content. Instead, they should serve as bridges connecting pedagogical objectives with authentic communication. For adult learners, relevance often matters more than entertainment. Visual design should prioritize clarity over aesthetic excess. AI-generated materials should facilitate active participation rather than passive consumption. Reference resources should support contextualized learning rather than reinforce textbook dependency.

The integration of AI into lesson planning also signals a major transformation in teaching practice. Teachers increasingly function as curators, adapters, and designers of learning experiences rather than simple transmitters of textbook knowledge. However, effective adaptation still depends on pedagogical judgment, contextual awareness, and reflective teaching practices.

Ultimately, supplementary materials become meaningful when they help learners engage with language as a living communicative tool connected to their professional and personal realities. In online adult education, this means creating tasks that mirror authentic communication, encourage interaction, and acknowledge the complex realities learners face beyond the virtual classroom.

The truth, indeed, is out there, not only in the world beyond the textbook, but also in the evolving communicative landscapes where adult learners use English to negotiate meaning, construct professional identities, and participate in an increasingly interconnected world. 

San José, Costa Rica

Monday, July 6, 2026

📚 References

Acuña Solano, J. (2026). Personal reflections on supplementary materials and online adult ELT. Unpublished classroom reflections.

British Council. (n.d.). TeachingEnglish: How to adapt resources: Module 1—Understanding resources, Unit 3: Reference resources and supplementary materials [Online professional development course]. https://open.teachingenglish.org.uk/Team/UserProgrammeDetails/699499?stepId=2

Gilmore, A. (2007). Authentic materials and authenticity in foreign language learning. Language Teaching, 40(2), 97–118.

Harmer, J. (2015). The practice of English language teaching (5th ed.). Pearson Education.

Krashen, S. D. (1985). The input hypothesis: Issues and implications. Longman.

Mayer, R. E. (2009). Multimedia learning (2nd ed.). Cambridge University Press.

Mishan, F., & Timmis, I. (2015). Materials development for TESOL. Edinburgh University Press.

Richards, J. C. (2006). Communicative language teaching today. Cambridge University Press.

Richards, J. C. (2015). Key issues in language teaching. Cambridge University Press.

Swain, M. (1995). Three functions of output in second language learning. In G. Cook & B. Seidlhofer (Eds.), Principle and practice in applied linguistics (pp. 125–144). Oxford University Press.

Tomlinson, B. (2011). Materials development in language teaching (2nd ed.). Cambridge University Press.

Tomlinson, B. (2013). Developing materials for language teaching. Bloomsbury Academic.

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