Starter quiz
- What is the whole in this picture?
- '10' ✓
- Which equation represents this part-part-whole model?
- 5 = 2 + 7
- 5 + 2 = 7 ✓
- 2 + 7 = 5
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- Which equation represents the picture?
- 8 = 6 + 2 ✓
- 6 + 2 = 7
- 6 = 2 + 6
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- I have 8 pencils altogether. 6 are red and 2 are yellow. Which equations would represent this?
- 6 + 2 = 8 ✓
- 6 = 2 + 8
- 8 = 6 + 2 ✓
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- Which story could these counters represent?
- There are 3 bananas and 4 apples. There are 7 pieces of fruit altogether ✓
- There are 4 pieces of fruit altogether. 3 of those pieces are apples.
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- Jun has written three equations to match this picture. Which other equation could he write? Do not use a space.
- '6=2+4' ✓
Exit quiz
- Write an equation to represent the part-part-whole model and solve it. Do not use spaces.
- '3+5=8 ' ✓
- There are 3 pebbles in one box and no pebbles in the other box. Which equation would I write to find out how many pebbles there are altogether? Do not use spaces.
- '3+0= ' ✓
- Which equation can be used to represent this picture?
- 8 = 5 = 3
- 3 + 5 + 8
- 5 = 3 + 8
- 5 + 3 = 8 ✓
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- Izzy has 3 counters and Jun has 5 counters. They combined the parts to find out how many altogether. Which equation could represent this?
- 8 = 5 + 3 ✓
- 3 = 5 + 8
- 8 + 3 = 5
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- Solve this equation. 7 + 2 = ______
- '9' ✓
- Solve this equation. ______ = 8 + 2
- '10' ✓
Worksheet
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Presentation
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Lesson Details
Key learning points
- In an equation, each addend represents a part.
- You can combine the addends to find the sum.
- To find how many objects there are altogether, you must count both addends.
Common misconception
Children may have difficulty when the sum is presented on the left of the equal sign.
Ensure that equations are arranged with the sum both on the left and the right of equal sign. Use term 'is equal to' to stress equality.
Keywords
Part - A piece or section of the whole.
Whole - All of a group or number.
Altogether - In total, the whole amount.
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