# NEXT15 · Kits and cards are different units

<p>Year 1 Maths · resources 15–16 · Days 71–80 · 13 October 2026 Source edition.</p>
<h2>Component and target criterion</h2><p>D-first-Q3 · Rejects 7 because 3 names kits and 4 names cards per kit; three complete four-card groups require 12 members.</p><h2>Purpose</h2><p>Teach this particular missing component with a new ordinary job after retaining the held first response. The previous answer/source is not silently edited into a new independent sample.</p><h2>Entry</h2><p>Read the exact original response and separate access support from mathematical hints. Check counting the fresh whole and understanding the named unit. Offer a small new four-member/two-place or six-member/two-per-pack introduction if this representation is new; do not require fluent symbolic division.</p><h2>Materials</h2><p>Plain paper, a pencil or child-directed marks, safe large pieces and named places. A place can be a drawn box or spoken label. No food, real money, purchase, printer, account or device required. A helper moves only the piece/place the child chooses.</p><h2>Time</h2><p>About 8–12 minutes, unpiloted; split or stop as needed.</p><div class="source"><h3>NEXT15</h3><p>There are 3 new pretend kits with 5 whole recipe-picture cards required in each. How many members are needed in all?</p></div><h2>Five full teaching moves</h2><p>1. Introduce the entire new source and ask what each quantity names. Preserve a first model or explanation. 2. A supplied claim says 3 kits+5 cards per kit=8 cards. Point to the roles of both numbers, then build three actual five-card groups and count 15. A plus sign is not wrong in itself:5+5+5 represents this job;3+5 does not. 3. Teach with the separate worked possibility below only after that first attempt. Invite the child to direct a different coherent model; do not require a faster strategy or a repeated physical action. 4. Introduce the full different guided source, not just new numerals. Let the child first choose a representation and label the requested quantity. 5. Recheck the precise new-source component, record actual support and choose another fresh opportunity later if needed.</p><h2>New-source adult model</h2><p>There are 3 known kits with 5 recipe-picture cards in every kit. Build or draw each kit separately and count every member once. 5+5+5=15 recipe-picture cards in all. The numbers 3 and 5 name different quantities, so adding them as two loose parts would not represent the kits. Check each of the 3 kits still contains 5; then recount or use another taught equal-group method. A multiplication symbol is optional adult shorthand, not a prerequisite or a demand for times-table recall.</p><h2>Full different guided practice</h2><div class="source"><h3>A whole different guided try</h3><p>A separately introduced job has 2 kits each needing 6 whole book cards. How many members are needed in all? A pretend helper says two kits plus six cards per kit means eight cards in all. Does that fit this whole job? Explain using the stated collection and rule.</p></div><h2>Guided worked possibility</h2><p>There are 2 known kits with 6 book cards in every kit. Build or draw each kit separately and count every member once. 6+6=12 book cards in all. The numbers 2 and 6 name different quantities, so adding them as two loose parts would not represent the kits. Check each of the 2 kits still contains 6; then recount or use another taught equal-group method. A multiplication symbol is optional adult shorthand, not a prerequisite or a demand for times-table recall. The supplied claim does not fit: check the complete represented collection and the exact required relationship rather than the confidence of the claim.</p><h2>Observation</h2><p>Read the full guided source and its stated helper claim. Invite the child to decide whether it fits and explain with a model, words or directed objects. Keep both first response and any subsequent support. Challenge adding unlike dimension labels.</p><h2>Guided source criterion</h2><p>Explains why the specific helper claim in this new guided source fails the stated relationship, using the actual whole, requested unit and equality/complete-size/equal-kit rule. An unexplained rejection or correct numeral alone is insufficient. Keep this guided source distinct from the old held case.</p><h2>Follow-up and eligibility</h2><p>A later new small source may change the named purpose or one stated quantity. Introduce it whole, check its intended relationship and criterion before use, and keep it as a separate dated record. A prompted correction now is supported teaching, not proof of unseen transfer.</p><h2>Access choices</h2><p>Let the child mix objects, a drawing, speech, signing, AAC, tactile marks or an exact directed helper. Read the whole source and allow processing time. Offer a quiet seated route and a pause. Record reading/motor access separately from hints that choose a mathematical step. These are choices, not fixed learning styles or neurotype assignments.</p>
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