Embedded Files
Core concept: A shape or object can be halved into two equal parts.
Learning Intention:
Learning Intention:
Students are learning that:
Students are learning that:
- an object can often be halved in different ways
- an object can often be halved in different ways
- when a whole has been partitioned (shared) into 2 equal parts, you have created halves
- when a whole has been partitioned (shared) into 2 equal parts, you have created halves
- there is often more than one way to solve the same problem.
- there is often more than one way to solve the same problem.
Success Criteria:
Success Criteria:
Students can:
Students can:
- halve objects in different ways
- halve objects in different ways
- identify halves of objects when the 2 halves look the same.
- identify halves of objects when the 2 halves look the same.
Daily number sense: Daily number sense: Frogs in ponds – 10 minutes
Daily number sense: Daily number sense: Frogs in ponds – 10 minutes
Build student understanding of subitising by visualising a frog problem.
Build student understanding of subitising by visualising a frog problem.
Explain that 5 frogs live in a pond, and 2 of the frogs are sitting on the rock. Ask how many frogs are hiding in the pond.
Explain that 5 frogs live in a pond, and 2 of the frogs are sitting on the rock. Ask how many frogs are hiding in the pond.
As a class, brainstorm different ways to solve the first part of the problem. Model suggested strategies such as drawing a picture, using objects such as frog figurines or role playing in small groups.
As a class, brainstorm different ways to solve the first part of the problem. Model suggested strategies such as drawing a picture, using objects such as frog figurines or role playing in small groups.
Learning: What is a half? – 35 minutes
Learning: What is a half? – 35 minutes
View Count Us In, Ep 13: Investigating halves of familiar objects (0:01-3:36).
Consolidation and meaningful practice: Draw the missing half – 15 minutes
Consolidation and meaningful practice: Draw the missing half – 15 minutes
Model cutting a selection of leaves in half in front of students. Provide one half of a leaf and ask them to paste it onto a piece of paper. See Figure 14.
Model cutting a selection of leaves in half in front of students. Provide one half of a leaf and ask them to paste it onto a piece of paper. See Figure 14.
Challenge students to draw the missing half of a leaf for 2 caterpillars to share. Students colour in the drawn half to match the real leaf.
Challenge students to draw the missing half of a leaf for 2 caterpillars to share. Students colour in the drawn half to match the real leaf.
Figure 14 – Half leaf drawing
Figure 14 – Half leaf drawing
After the drawing is completed, ask ‘Do both halves look the same?’
After the drawing is completed, ask ‘Do both halves look the same?’
The table below details assessment opportunities and differentiation ideas.
The table below details assessment opportunities and differentiation ideas.
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