Starter quiz
What number is being represented?- 4
- 5
- 6 ✓
- 7
-
- Which representation shows 9?
- Which number line is representing 5 and 2 more?
- Which bar model is showing 3 + 4 = 7?
- Aisha earned 4 stickers in the morning and 2 stickers in the afternoon. How many stickers did she earn altogether?
- '6' ✓
- There were 6 children at the park. 3 went home for tea. How many children are left at the park?
- '3' ✓
Exit quiz
Which of these represent the same addends being added?
Which of these represent the same addends being added?
Which number shown on the dice is missing from the bar model?
Which pair of dice could be the parts in this bar model?
What is the missing number?- 5
- 4 ✓
- 3
- 2
-
Alex is trying to write all the addition and subtraction facts for this bar model. He cannot think of the last one. What is the missing equation from his list?- 7 + 3 = 4
- 7 - 4 = 3 ✓
- 7 - 3 = 4
- 4 - 3 = 7
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Worksheet
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Presentation
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Lesson Details
Key learning points
- Representing a problem can help us to find addition and subtraction facts.
- In addition, we can change the order of the addends and the sum will remain the same.
- We can use addition facts to help us find subtraction facts.
- If I know 3 + 2 = 5, I know that 5 - 2 = 3
Common misconception
Without correct representation, children may struggle to know what to calculate.
If needed, provide support at this stage so that the structure of the mathematics is clear to children.
Keywords
Add - To find the total, or sum, by combining two or more parts (addends), or to increase an amount by adding another.
Subtract - To partition one part from another (the subtrahend from the difference), or to decrease an amount by taking an amount away.
Represent - To communicate mathematical ideas through models.
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