Additive structures
Unit 6 – 4 weeks
Primary
KS1
Year 1
Curriculum
The PowerPoint file contains slides you can use in the classroom to support each of the learning outcomes for this unit, listed below.
The slides are comprehensively linked to associated pedagogical guidance in the NCETM Primary Mastery Professional Development materials. There are also links to the ready-to-progress criteria detailed in the DfE Primary Mathematics Guidance 2020.
Learning outcomes
| # | Title |
|---|---|
| 1 | Pupils combine two or more parts to make a whole |
| 2 | Pupils explain that addends can be represented in any order. This is called the commutative law |
| 3 | Pupils explain that the = sign can be used to show that the whole and the sum of the parts are equal (1) |
| 4 | Pupils explain that the = sign can be used to show that the whole and the sum of the parts are equal (2) |
| 5 | Pupils add parts to find the value of the whole and write the equation |
| 6 | Pupils find the missing addend in an equation |
| 7 | Pupils partition a whole into two parts and express this with a subtraction equation |
| 8 | Pupils make addition and subtraction stories and write equations to match |
| 9 | Pupils represent ‘first, then, now’ stories with addition equations (1) |
| 10 | Pupils represent ‘first, then, now’ stories with addition equations (2) |
| 11 | Pupils represent ‘first, then, now’ stories with subtraction equations (1) |
| 12 | Pupils represent ‘first, then, now’ stories with subtraction equations (2) |
| 13 | Pupils represent different types of stories with subtraction calculations |
| 14 | Pupils make addition and subtraction stories, writing equations to match |
| 15 | Pupils work out the missing part of an addition story and equation if the other two parts are known |
| 16 | Pupils work out the missing part of a subtraction story and equation if the other two parts are known |
| 17 | Pupils explain that addition and subtraction are inverse operations (1) |
| 18 | Pupils explain that addition and subtraction are inverse operations (2) |
| 19 | Pupils use additive structures to think about addition and subtraction equations in different ways |