# Compute current conditions


## 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 story book plan changes start from 327 to 347 and keeps 156 added.

## Complete new source

An ordinary fictional costume plan changes its added count from 148 to 168 while current start is 286.

## Complete own invitation

Choose an own complete additive plan, change one count by 10–30 and recompute.

## Entry and teach

Do not retain old answer after changing an input.

## Guided instruction

Current 503; old 483 is earlier version. Invite each relationship before the answer; teach missing facts and name help.

## Id

NEXT30

## 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


1. Read the new source and name units/wanted quantity. Do not retain old answer after changing an input.

2. Model on separate adult paper. Current 286+168=454; old 434 belongs to 286+148. Label both versions.

3. Guide a different complete source. A pretend story book plan changes start from 327 to 347 and keeps 156 added. Current 503; old 483 is earlier version.

4. Receive one own attempt. Choose an own complete additive plan, change one count by 10–30 and recompute. Staff reference only: Check the actual new sum; staff possibility 248+135=383 then 268+135=403.

5. Compare available work with: Current calculation uses current values; earlier result is not silently reused. Choose one follow-up offer; never infer independence from a copied model.

## What to look for

Current calculation uses current values; earlier result is not silently reused.

## Staff own possibility

Check the actual new sum; staff possibility 248+135=383 then 268+135=403.

## Teacher model

Current 286+168=454; old 434 belongs to 286+148. Label both versions.

## Timing

An adjustable 10–20 minute ordinary lesson, unpiloted; split/stop after one useful part.

## Title

Compute current conditions