England · 5–6 yearsParts make a wholeFind partners that make ten or twenty, and explain what equal means.One screen. The whole class.
Adding and taking away
Adding and taking away: Parts make a whole → Crossing ten with pictures → What remains? → One-step stories → Explain the missing part.
Learning goals
- Find number bonds to 10 and 20 using missing parts and the equals sign.
- Choose a sensible addition strategy within 20 using partitioning.
- Subtract by taking away or finding a difference with objects and number lines.
- Choose addition or subtraction for combine, change and comparison stories within 20.
- Solve missing-number equations and reject a plausible counting error.
A suggested order, with freedom to open or replay any available activity. Played activities help teachers continue a sequence; they do not measure mastery.
Open this path in the classroomBefore you begin
- Count small sets and compare familiar objects.
One computer and a whiteboard or shared display. Pupils participate without accounts. The teacher sets the pace and can repeat or skip each activity.
Parts make a whole · Free
Find number bonds to 10 and 20 using missing parts and the equals sign.
Crossing ten with pictures · Pro
Choose a sensible addition strategy within 20 using partitioning.
What remains? · Pro
Subtract by taking away or finding a difference with objects and number lines.
One-step stories · Pro
Choose addition or subtraction for combine, change and comparison stories within 20.
Explain the missing part · Pro
Solve missing-number equations and reject a plausible counting error.
England · 5–6 yearsParts make a wholeFind partners that make ten or twenty, and explain what equal means.
England · 5–6 yearsCrossing ten with picturesUse parts of a group to reach ten, then include the rest.
England · 5–6 yearsWhat remains?Use objects, matching and number lines to explain subtraction.
England · 5–6 yearsOne-step storiesChoose the calculation that matches joining, changing and comparing.
England · 5–6 yearsExplain the missing partSolve a missing number and explain why a counting mistake fails.