Sentence stems
Sentence stems (also called sentence starters, and when more fully framed, sentence frames) are partial sentences the teacher provides as a starting point for an oral or written response, such as "I predict that ____ because ____." They are temporary syntactic scaffolds that supply academic discourse structure so emergent bilinguals can put their existing ideas and content knowledge into target-language form without carrying the full linguistic load alone. Stems make the language functions of a discipline (predicting, comparing, justifying, summarizing) visible and reusable, and they are meant to be gradually faded and removed as students internalize the structures and grow in proficiency.
When to use it
Use sentence stems when an emergent bilingual already has ideas or content understanding but needs support producing the academic language to express them, especially during structured discussion, collaborative talk, partner shares, written short-answer or extended responses, and academic conversations tied to a language function (for example, justify a claim, compare two ideas, agree or disagree, cite evidence). They are most appropriate at the Beginning, Intermediate, and High Intermediate levels and are well matched to tasks where you want students to attend to content while you supply the form. Stems are also useful for introducing a new academic function to the whole class. Use heavier frames at the earlier and mid-range levels, reduce or remove them once a student can produce the structure independently, and avoid imposing a frame when it would constrain a student who can already say or write more than the frame allows. Pair stems with open dialogue and genuine sense-making rather than treating the completed frame as the goal in itself.
How to implement it
- 1Identify the language function the task requires (predict, compare, justify, summarize, agree or disagree) and the academic vocabulary and grammar that function needs, then write the stem from that function rather than from a generic template.
- 2Differentiate the same stem across proficiency levels: offer a more complete frame for newcomers and an open-ended starter for more proficient students so every learner is stretched, not capped.
- 3Introduce the stem explicitly: post it, read it aloud, and model a full think-aloud response using it so students hear the target structure before they are asked to produce it.
- 4Let students rehearse orally with a partner before writing, and welcome bilingual rehearsal so students may think and talk through the idea in their home language first, then complete the stem in English.
- 5Provide stems visibly (anchor chart, sentence-stem cards, slide, or personal reference strip) and keep them open enough that students choose their own content rather than copying a single right answer.
- 6Plan the fade deliberately: track which students no longer need the frame, move them from full frames to partial starters to no scaffold, and remove the stem once the structure is internalized so it builds independence rather than dependence.
- 7Treat stems as a support for thinking and talk, not a correctness trap: prioritize the idea the student expresses, give feedback that recasts language gently, and protect time for genuine dialogue so the frame opens up sense-making rather than reducing the task to filling in a blank.
Why it works for emergent bilingual students
Sentence stems support emergent bilinguals by separating cognitive demand from linguistic demand: the student supplies the thinking while the stem temporarily supplies the academic form, lowering the linguistic load so the learner can participate in grade-level discourse rather than waiting until full proficiency develops (Echevarria et al., 2017; Gibbons, 2015). This is an asset-based scaffold, not a deficit fix. It assumes students already have ideas and rich language resources and gives them a bridge into the academic register of the new language while honoring the home language as a tool for thinking and rehearsal. The approach reflects Cummins's distinction between conversational fluency and the more demanding academic language proficiency that schooling requires, a proficiency that develops over years, giving learners a concrete pathway from one to the other (Cummins, 2008). Used well within a gradual release, stems move learners from teacher support toward independent production. Researchers caution, however, that an overemphasis on producing correct frames can crowd out the collaborative sense-making that builds disciplinary understanding, so stems should be one flexible support inside rich dialogue and faded as proficiency grows, never the endpoint of a task (Alvarez et al., 2023).
Across proficiency levels
Pre-Production
At Pre-Production, students are typically in a silent or receptive period and are not yet producing connected speech, so a verbal stem the student must complete is not the primary tool. Use stems receptively: read the stem aloud, model it repeatedly, and pair it with visuals, gestures, and home-language support so students absorb the structure. Accept nonverbal or single-word completions (point, draw, label, or supply one key word into a frame the teacher reads), and welcome responses in the home language. The goal is exposure to and recognition of the structure, not independent production.
Beginning
At Beginning, provide highly supported, near-complete frames with most of the language given and only a content slot or two to fill (for example, 'The water turned into ____.'). Offer a word bank or picture support for the blank, allow oral rehearsal with a partner first, and accept short phrase-level responses. The frame carries most of the syntactic load here so the student can focus on inserting known content and vocabulary.
Intermediate
At Intermediate, use stems that supply the academic function and connective language but require the student to generate more of the response (for example, 'I predict ____ because ____' or 'I agree with ____ because ____'). These stems push students to produce complete, connected sentences, link claims to reasons, and incorporate newly learned academic vocabulary. Begin shifting from full frames toward open starters as students gain control of the structure.
High Intermediate / Advanced
At High Intermediate and Advanced, move from frames to brief open-ended starters used only to introduce a new or more complex function (for example, 'A more nuanced interpretation is ____, whereas the text suggests ____'), then fade them entirely for structures the student already controls. At these levels students should use stems by choice as a quick reference for an unfamiliar academic move rather than as a required scaffold, and most routine responses should be produced independently with no frame.
Examples
- •Science discussion: 'I observed that ____, which makes me think ____.' Students rehearse with a partner in their home language or English, then share, easing the load of producing a claim plus reasoning in academic English while keeping the focus on sense-making, not on a perfect sentence.
- •Math reasoning: 'I solved the problem by ____ first, and then I ____, so my answer is ____.' The frame surfaces the explain-your-process function and lets even newcomers narrate their thinking.
- •Reading response (Intermediate): 'The author probably included ____ in order to ____.' This requires a complete sentence and an inference, stretching the student beyond a one-word answer.
- •Academic conversation, agree or disagree: 'I see your point about ____, but I think ____ because ____.' Posted as a card so students choose it to enter a discussion, modeling how to disagree respectfully.
- •Differentiated set for one task: Beginning gets 'The character felt ____.'; Intermediate gets 'The character felt ____ because ____.'; Advanced gets an open starter, 'The character's reaction reveals ____,' and the teacher removes the frame once students produce that structure on their own.
Research basis
Sentence frames and starters are syntactic scaffolds that can supply academic discourse structure and lower the linguistic load of expression, but research with emergent multilingual students cautions that an overemphasis on producing correct frames can interrupt collaborative sense-making; frames should be designed around language functions, used flexibly inside rich dialogue, and faded so they support rather than constrain disciplinary participation.
Alvarez, L., Capitelli, S., & Valdés, G. (2023). Beyond sentence frames: Scaffolding emergent multilingual students' participation in science discourse. TESOL Journal, 14(3), Article e720. https://doi.org/10.1002/tesj.720 [link]
Effective sheltered instruction provides sentence starters and frames as supports that make academic language accessible while keeping content rigorous, and these supports should be matched to students' proficiency levels and gradually withdrawn.
Echevarria, J., Vogt, M. E., & Short, D. J. (2017). Making content comprehensible for English learners: The SIOP model (5th ed.). Pearson.
Scaffolds such as sentence stems should be temporary, responsive supports within a gradual release of responsibility, designed to be handed over and removed as learners gain control of academic language so that scaffolding builds learner independence.
Gibbons, P. (2015). Scaffolding language, scaffolding learning: Teaching English language learners in the mainstream classroom (2nd ed.). Heinemann.
Academic language for school success develops over years and differs from conversational fluency, justifying targeted, temporary supports that help second language learners express school-relevant concepts in oral and written modes.
Cummins, J. (2008). BICS and CALP: Empirical and theoretical status of the distinction. In B. V. Street & N. H. Hornberger (Eds.), Encyclopedia of language and education (2nd ed., Vol. 2, pp. 71-83). Springer. https://doi.org/10.1007/978-0-387-30424-3_36 [link]
Sentence frames and starters are fill-in-the-blank supports that let English learners express ideas using academic language structures across speaking and writing; teachers should differentiate frames by proficiency level, post them visibly, keep them open enough for student choice, and gradually reduce the scaffolding as proficiency increases.
Colorín Colorado. (n.d.). Sentence frames and sentence starters. WETA. Retrieved June 16, 2026, from https://www.colorincolorado.org/teaching-ells/ell-classroom-strategy-library/sentence-frames [link]
Sources reviewed by an independent second-language-acquisition specialist and an adversarial citation audit.
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