Mathematics - Term 3 - Week 6

Problem solving in mathematics involves understanding the problem, devising a plan, carrying out the plan, and reviewing the solution. We will explore different strategies such as drawing pictures, using number lines, and breaking down the problem into smaller parts. It's important to talk about our thinking process as we solve problems, which helps us clarify our understanding.

If Sarah has 5 apples and buys 3 more, how many apples does she have now? To solve this, we can use addition. Start with the number of apples Sarah has (5) and add the number she buys (3). So, 5 + 3 = 8. Therefore, Sarah has 8 apples in total. We can also draw a picture of the apples to visualize the problem.

Let's solve this problem together: Tom has 12 candies, and he wants to share them equally with 3 friends. How many candies will each friend get? First, we will divide the total number of candies (12) by the number of friends (3). So, 12 ÷ 3 = 4. Each friend will get 4 candies. Now, let's discuss how we can check our answer by multiplying back: 4 candies per friend times 3 friends equals 12 candies.

Now it's your turn to solve some problems on your own. Here are a few to try: 1. If you have 10 marbles and lose 2, how many do you have left? 2. There are 15 birds in a tree. If 5 fly away, how many are left? Show your working clearly and be prepared to share your strategies with the class.

• 10
• 11
• 12
• 13

Answer: 12

Adding 7 and 5 gives you 12.

• 16
• 18
• 14
• 20

Answer: 16

20 minus 4 equals 16.

Answer: 6

Subtracting 3 from 9 results in 6.

• 2
• 3
• 4
• 5

Answer: 3

A triangle has three sides.

Answer: 5

8 minus 3 equals 5.

• 8
• 10
• 12
• 14

Answer: 12

Multiplying 6 by 2 gives you 12.

• 5
• 10
• 15
• 20

Answer: 10

15 minus 5 equals 10.

Answer: 8

Adding 4 and 4 results in 8.