Draw a picture
Sketch objects, groups, shapes or a simple diagram. Pictures help you count, compare and see what is missing.
● ● ●+● ●=5
Class 2 Maths · Chapter 1 · Topic 1-9
Problem-Solving Investigation: Choose a Strategy
Good problem solvers choose a helpful way to begin. Draw a picture, use logical reasoning, or act it out. Then check that your answer fits the story.
30CHALLENGES
Three useful strategies
Choose how to get started
More than one method can work. Pick one that helps you see the problem.
Use logical reasoning
Use every clue. Decide what must be true and cross out ideas that do not fit.
not first→check clues
Act it out
Use counters, move your body, or pretend to be in the story. Acting helps you follow each step in order.
start→move→count
Guided example · choose a strategy
There are 3 birds on a fence. 2 more land. How many birds are there?
A quick drawing works well. Draw 3 birds, then add 2 more and count them all.
Draw first
🐦 🐦 🐦
Add the new birds
🐦 🐦
Count all
3 + 2 = 5 birds
Remember: The goal is not to pick a fancy strategy. Pick one that makes the problem easier to understand, then explain how it helped.
Choose a method · solve the problem
30 Strategy Investigations
For each one, choose the best first strategy and the answer.
0 of 30 checked
0 solved
Your problem-solving score is ready!
Choose a strategy and solve each problem. You may change your choices and check again.