1. Implementation
Review the mathematical concept.
Review the problem solving steps.
READ: Children read the part that is asking them to find something out.
UNDERSTAND: Children explain what they need to find out.
Children identify what information they will need to find it out.
Remove the coloured rectangle.
Children find the information they need to find it out.
CHOOSE A STRATEGY: Children identify strategies that they could use to find it out.
USE A STRATEGY: Children use a strategy to find it out.
Children record their thinking as they find it out.
CHECK: Children reread the part that asked them to find something out.
Children check that they have found it out.
Children check they have recorded their solution correctly.
Children follow the problem solving steps to solve the 2nd level of the problem, with minimal teacher guidance.
Children who solve the 2nd level, follow the problem solving steps to solve the 3rd level of the problem independently.
Children use the problems as a guide to create their own problem, either alone or in pairs/small groups.
Children solve their own problem.
Throughout the lesson, children share solution strategies.
At the end of the lesson, children explain how they created their own problems.

2. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Annie constructed a cube where each dimension was 1 centimetre long.
What is the volume of Annie’s cube?
Annie constructed a cube where each dimension was 2 centimetres long.
What is the volume of Annie’s cube?
Annie constructed a rectangular prism where 2 dimensions were 1 centimetre long, and 1 dimension was 1 centimetre long.
What is the volume of Annie’s rectangular prism?
Measurement and Geometry 35
Create your own problem! Now solve it!

3. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
What is the volume of this model?   
= 1 cubic centimetre
What is the volume of this model?
What is the volume of this model?
Measurement and Geometry 35
Create your own problem! Now solve it!

4. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
What is the volume and capacity of this box?   
= 1 cubic centimetre
What is the volume and capacity of this box?
What is the volume and capacity of this box?
Measurement and Geometry 35
Create your own problem! Now solve it!

5. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Annie filled a measuring jug with water to 1 litre.
How many millilitres of water does Annie have?
Annie filled a measuring jug with water to litre.
How many millilitres of water does Annie have?
Annie filled a measuring jug with water to litre.
How many millilitres of water does Annie have?
Measurement and Geometry 35
Create your own problem! Now solve it!

6. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Jody filled a container to capacity with water.
She poured the water into a measuring jug. 
What was the capacity of the container?
Measurement and Geometry 35
Create your own problem! Now solve it!

7. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Jody filled a container to capacity with water.
She poured the water into a measuring jug. 
What was the capacity of the container?
Measurement and Geometry 35
Create your own problem! Now solve it!

8. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 12 cubic centimetres.
What could the models look like?
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 17 cubic centimetres.
What could the models look like?
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 24 cubic centimetres.
What could the models look like?
Measurement and Geometry 35
Create your own problem! Now solve it!

9. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 12 cubic centimetres.
What could the models look like?
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 17 cubic centimetres.
What could the models look like?
Hannah made a tall model and a short model out of cubic centimetres.
Each model has the same volume, 24 cubic centimetres.
What could the models look like?
Measurement and Geometry 35
Create your own problem! Now solve it!

10. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Jody made this model by stacking cubic centimetres.
What is the volume of Jody's model?
Top view
Top view
Jody made this model by stacking cubic centimetres.
What is the volume of Jody's model?
Create your own problem!
Now solve it!
Measurement and Geometry 35

11. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Billy was packing cubic centimetres into a carton.
How many cubic centimetres did he pack into the carton?
Billy packed 5 cubic centimetres into this carton.
How many more cubic centimetres can fit in the carton?
Billy packed 5 cubic centimetres into this carton.
How many cubic centimetres can fit in the carton altogether?
Create your own problem!
Now solve it!
Measurement and Geometry 35

12. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Mary made this model from cubic centimetres.
The model has 6 faces.
What is the volume of the model?
Mary made this model from cubic centimetres.
The model has 6 faces.
What is the volume of the model?
Mary made this model from cubic centimetres.
The model has 6 faces.
What is the volume of the model?
Create your own problem!
Now solve it!
Measurement and Geometry 35

13. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Tony constructed this model from cubic centimetres.
How could he work out the volume of the model?
4 x or or
Tony constructed this model from cubic centimetres.
How could he work out the volume of the model?
4 x or or
Tony constructed this model from cubic centimetres.
How could he work out the volume of the model?
2 x or x 2 or
Create your own problem!
Now solve it!
Measurement and Geometry 35

14. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Which box has the greatest volume? What is its volume?
cubic
centimetre
Which box has the smallest volume? What is its volume?
Which box has the volume of 12 cubic centimetres?
Create your own problem!
Now solve it!
Measurement and Geometry 35

15. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
I poured 50 millilitres of water into a container. The dotted line shows how much water was then in the container.
About how many millilitres of water will the container hold altogether when filled to capacity?
I poured 150 millilitres of water into a container. The dotted line shows how much water was then in the container.
About how many millilitres of water will the container hold altogether when filled to capacity?
I poured 380 millilitres of water into a container. The dotted line shows how much water was then in the container.
About how many millilitres of water will the container hold altogether when filled to capacity?
Measurement and Geometry 35
Create your own problem! Now solve it!

16. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
The jug is filled to 650 millilitres.
How many more millilitres do I need to fill the jug to 1 litre?
The jug is filled to 780 millilitres.
How many more millilitres do I need to fill the jug to 1 litre?
The jug is filled to 327 millilitres.
How many more millilitres do I need to fill the jug to 1 litre?
Create your own problem!
Now solve it!
Measurement and Geometry 35

17. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
The picture shows how much milk Lucy poured into an empty measuring jug from a full 1 litre carton.
What volume of milk did she pour into the measuring jug?
What volume of milk is left in the carton?
Measurement and Geometry 35
Create your own problem! Now solve it!

18. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Lucy poured 350 millilitres of milk into a jug from a full 1 litre carton.
What volume of milk is left in the carton?
Lucy poured 480 millilitres of milk into a jug from a full 1 litre carton.
What volume of milk is left in the carton?
Lucy poured 765 millilitres of milk into a jug from a full 1 litre carton.
What volume of milk is left in the carton?
Measurement and Geometry 35
Create your own problem! Now solve it!

19. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Which container has the lowest volume of liquid?
Which container has the greatest volume of liquid?
Create your own problem!
Now solve it!
Measurement and Geometry 35

20. Volume, capacity in cubic centimetres, millilitres, litres.
Problem Solving
Volume, capacity in cubic centimetres, millilitres, litres.
Sam poured water into 2 containers.
He poured exactly 1 litre.
How much water might he have poured into each container?
Sam poured water into 3 containers.
He poured exactly 1 litre.
How much water might he have poured into each container?
Sam poured water into 4 containers.
He poured exactly 1 litre.
How much water might he have poured into each container?
Create your own problem!
Now solve it!
Measurement and Geometry 35