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. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
There were children in the class.
How could the teacher group the children using standard and non-standard place value?
There were children in the class.
How could the teacher group the children using standard and non-standard place value?
Place Value 15
Create your own problem! Now solve it!

3. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
There were 127 children in the class.
There was a tens number of girls.
How many boys could there be?
There were 148 children in the class.
There was a tens number of girls.
How many boys could there be?
There were 362 children in the class.
There was a tens number of girls.
How many boys could there be?
Place Value 15
Create your own problem! Now solve it!

4. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
What number could be in the blank space on this number line?
146
116
What number could be in the blank space on this number line?
172
136
Place Value 15
Create your own problem! Now solve it!

5. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
Where would 143 go on this number line?
172
136 a b
Where would 167 go on this number line?
191
152 a b
Place Value 15
Create your own problem! Now solve it!

6. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
What number is covered on the
hundred chart?
How do you know?
Place Value 15
Create your own problem! Now solve it!

7. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
What number is higher on the hundred chart, 238 or 832?
How do you know?
What number is higher on the hundred chart, 638 or 432?
How do you know?
What number is higher on the hundred chart, 538 or 881?
How do you know?
Place Value 15
Create your own problem! Now solve it!

8. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
How many different ways can you partition 254?
Which ways use place value?
How many different ways can you partition 764?
Which ways use place value?
Place Value 15
Create your own problem! Now solve it!

9. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
A sugar cane train has 214 carriages. The train driver partitions the train into 2 parts.
How many carriages could be in each part?
A sugar cane train has 397 carriages.
The train driver partitions the train into 2 parts.
How many carriages could be in each part?
A sugar cane train has 629 carriages. The train driver partitions the train into 2 parts.
How many carriages could be in each part?
Place Value 15
Create your own problem! Now solve it!

10. Place Value of Three-Digit Numbers
Problem Solving
Place Value of Three-Digit Numbers
I have 324 marbles in three bags.
How many marbles might be in each bag?
I have 419 marbles in three bags.
How many marbles might be in each bag?
I have 853 marbles in three bags.
How many marbles might be in each bag?
Place Value 15
Create your own problem! Now solve it!

11. Problem Solving There are three apple trees,
Place Value of Three-Digit Numbers
There are three apple trees,
with 325 apples altogether.
How many apples might be on each tree?
Place Value 15
Create your own problem! Now solve it!

12. Problem Solving There are 324 fruit bats in these two trees.
Place Value of Three-Digit Numbers
There are 324 fruit bats in these two trees.
How many fruit bats might be in each tree?
Place Value 15
Create your own problem! Now solve it!