Access
Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.
Adult model
987→1000 adds 13; 1000→1200 adds 200; 1200→1203 adds 3. The gap is 216 labels: 987 + 216 = 1203. The difference is a count comparison, not evidence the larger design is preferable.
Child direction
Help two made-up teams compare their counts without calling one better. Pick one route. Show what the numbers mean, try a way, then check one result. You can stop after a useful part.
Common tangle
the difference is added to both counts; check the roles and equivalent quantities, rather than memorising a printed answer.
Day
55
Different guided practice
Two invented folders contain 1501 and 1297 cards. Guide +3 to 1300,+200 to 1500,+1 to 1501 =204. Ask whether taking 1297 away from 1501 gives the same difference.
Check and teach the entry relationship
Ask how many more 37 is than 29; count 29→30(+1)→37(+7)=8. Both original collections still exist. If comparison is unclear, use 7 and 4 labels side by side.
Hook
Help two made-up teams compare their counts without calling one better.
Materials
Broad paper, labelled place-value/part-whole/number-line alternatives as suitable; optional familiar safe counters; usual communication. No hundreds of loose marks, purchases or physical handling required. Keep adult model and own work separate.
Next ordinary teaching
If the difference is added to both counts, keep a bar for each whole. Teach 46 compared with 39 gives 7, check 39+7=46; invite 81 compared with 68 gives 13.
Complete fictional source
Two fictional poster designs require 1203 labels and 987 labels. What is the difference in their requirements? No labels have been removed.
One own invitation
A fictional score sheet lists 1002 and 875 points. Find the difference and explain its meaning.
Partial curriculum opportunity
- AC9M4N06
Purpose
Find a difference by counting up; distinguish comparison from a removal event.
Routes
Access
Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.
Complete task
Compare fictional 52 and 38 game points. Show the gap, keeping both scores.
Entry or access
Use a marked line or exact spoken steps.
Id
A
Title
Small score comparison
After own work: adult practice possibility
14 points; 38 + 14 = 52.
Access
Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.
Complete task
Compare 1203 and 987 labels needed. Give a gap note that avoids a value judgement.
Entry or access
Use friendly stepping stones.
Id
B
Title
Poster designs
After own work: adult practice possibility
216 more labels for the first design.
Access
Show, draw, type, sign, use your usual communication or direct an agreeing helper. Choose quiet/private work, switch a route, pause, pass or finish. One useful part is enough. A helper can read the exact words or scribe your choices; supplying an operation, count, regrouping or reason is mathematical help and is named. No speed, neatness, speech, handling or device requirement.
Complete task
Two invented game routes are 3502 and 2789 step-cards long. Find the difference, not a real walking distance.
Entry or access
The counts are fictional game units, not travel or fitness advice.
Id
C
Title
Fictional trail game
After own work: adult practice possibility
713 step-cards; +11 to 2800,+700 to 3500,+2.
Session stages
Instruction
Help two made-up teams compare their counts without calling one better. Read the source. Ask what the numbers count and the wanted quantity. Ask how many more 37 is than 29; count 29→30(+1)→37(+7)=8. Both original collections still exist. If comparison is unclear, use 7 and 4 labels side by side.
Minutes suggestion
5
Stage
Meet the job
Instruction
987→1000 adds 13; 1000→1200 adds 200; 1200→1203 adds 3. The gap is 216 labels: 987 + 216 = 1203. The difference is a count comparison, not evidence the larger design is preferable. Show on separate adult paper. Pause after one transformation; invite explanation before showing the next.
Minutes suggestion
10
Stage
Teach one relationship
Instruction
Two invented folders contain 1501 and 1297 cards. Guide +3 to 1300,+200 to 1500,+1 to 1501 =204. Ask whether taking 1297 away from 1501 gives the same difference. Offer one complete route below, not all three as a quota. Let the learner select a representation and pause or switch.
Minutes suggestion
15
Stage
Guide then choose
Instruction
A fictional score sheet lists 1002 and 875 points. Find the difference and explain its meaning. Receive an available response before staff key. If the difference is added to both counts, keep a bar for each whole. Teach 46 compared with 39 gives 7, check 39+7=46; invite 81 compared with 68 gives 13.
Minutes suggestion
5
Stage
Receive and choose tomorrow
What to look for
The difference and count-up bridge are correct and interpreted as comparison, not a performed removal.
After own work: staff possibility
127 points: +25 to 900,+100 to 1000,+2. No claim about real players.
Status
Proposed 35-minute shape, unpiloted and freely reorderable; resource day not school calendar requirement.
Title
How much more?