Learning intention
Students will learn how to:
express number sentences to show how many are left when objects are taken away from an existing collection of up to 5 objects.
Success criteria
I will know I have been successful if I can:
say or write a number sentence to show how many objects are left.
Prerequisites
- Numbers to 5
- Addition within 5
- Counting back from 5 to 1
Language
Reinforce the use of the language of subtraction: take away, makes, left, count back, number path, # take away # is #
Before the video
- Engage children in the theme by role playing a borrowing interaction with a student.
- Ask, ‘What does borrowing mean?’ and draw students’ attention to the fact that borrowing means ‘taking away’.
- Discuss good manners for borrowing and the language of borrowing.
During the video
First viewing:
Watch the video without stopping or pausing. Then, ask the children to explain what happened in the video. Begin to draw out key vocabulary or possible misconceptions.
Second viewing:
| Pause point | Key learning | Action/discussion |
|---|---|---|
| 1:17 | 4 take away 1 is 3 (pencils) | Count with fingers or real objects. |
| 2:49 | 3 take away 2 is 1 (books) | Count with fingers or real objects. |
| 4:36 | 5 take away 3 is 2 (cars) | Wait for students to make the calculation. |
After the video
Video freeze frames:
- Display the freeze frames so all students can see.
- Students work in pairs to model each scene with real objects (five frames, beads, number lines, fingers) using the sentence displayed on the freeze frame, eg ‘Can I please borrow # _____’.
- Record number sentences using Mathletics operation cards and Mathletics number cards, eg 5 take away 3 is 2.
Download class display version
Mathletics worksheets:
Use five frames to play ‘Can I borrow?’
- Player 1 starts with a five frame filled with 5 counters. Player 2 asks, ‘Can I borrow [3]?’. Player 2 gives [3] counters. Player 1 now asks to borrow some counters. Continue taking turns.