Access
Read or sign the exact source and prompts neutrally, enlarge them, or scribe the learner’s chosen words. A figure, operation, regrouping, equation role or check supplied by an adult is mathematical help and is recorded as such. Show, draw, type, sign or use usual communication. One component can be enough; pause/pass/finish are choices. Four own spaces are genuinely empty. Models, criteria and next lessons stay on separate staff pages.
Complete different guided source
A pretend theatre uses 248 tickets, has 356 left.
Complete new source
A fictional puzzle box uses 126 cards and has 387 left.
Complete own invitation
An invented mask box uses 175 labels, has 468 left.
Entry and teach
Teach□−4=9: used 4 joins left 9 to get 13.
Guided instruction
604 start; 604−248=356. Invite each relationship before the answer; teach missing facts and name help.
Id
NEXT13
Materials
Broad paper/empty bar or line/place-value headings as useful; usual communication; no actual stock/handling/purchase.
Observe and follow up
Receive one available own relationship before staff possibility. If it matches criterion, offer another small new context later; this is not automatic mastery. If not, return to the entry relationship and fade one hint. Record the actual mathematical help. If access/time is not available, change access or sitting rather than marking wrong.
Relationship to check
Teach the observed missing relationship in a new ordinary domain; not an answer repetition or further held item.
Session sequence
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Read the new source and name units/wanted quantity. Teach□−4=9: used 4 joins left 9 to get 13.
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Model on separate adult paper. Starting 513=126+387; 513−126=387.
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Guide a different complete source. A pretend theatre uses 248 tickets, has 356 left. 604 start; 604−248=356.
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Receive one own attempt. An invented mask box uses 175 labels, has 468 left. Staff reference only: 643 start; 643−175=468.
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Compare available work with: Unknown start is rebuilt from used and left, with roles explained. Choose one follow-up offer; never infer independence from a copied model.
What to look for
Unknown start is rebuilt from used and left, with roles explained.
Staff own possibility
643 start; 643−175=468.
Teacher model
Starting 513=126+387; 513−126=387.
Timing
An adjustable 10–20 minute ordinary lesson, unpiloted; split/stop after one useful part.
Title
Rebuild the beginning