Mathematics - Term 2 - Week 9

Number sense is the ability to understand and work with numbers. It involves recognizing numbers, understanding their values, and being able to manipulate them through addition and subtraction. Today, we will explore how to count forwards and backwards, and how to use visual aids like number lines and counters to help us understand these concepts better.

Let's look at counting forward first. If we start at 1 and count up to 10, we say: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10. Now, let's count backward from 10 to 1: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1. Notice how we can use our fingers or a number line to help us visualize these numbers as we count.

Now, let's practice using counters. Each student will receive 10 counters. I will call out a number, and you will arrange your counters to match that number. For example, if I say '4', you will place 4 counters in a line. After that, we will count the counters together to ensure everyone has the correct amount. This will help reinforce our counting skills and number recognition.

For independent practice, I want you to solve the following problems on your own. Use a number line or your fingers if you need help. 1) If you have 5 apples and you buy 3 more, how many apples do you have in total? 2) If you start with 10 candies and give away 4, how many do you have left? Write down your answers and show your working clearly.

• 5
• 9
• 10
• 8

Answer: 9

When you add 7 and 2 together, you get 9.

• 12
• 13
• 15
• 16

Answer: 15

The number that comes after 14 is 15.

• 7
• 6
• 8
• 5

Answer: 7

10 minus 3 equals 7.

Answer: 10, 9, 8, 7, 6, 5, 4, 3, 2, 1

Counting backwards from 10 means saying each number down to 1.

• 8
• 5
• They are equal
• None of the above

Answer: 8

8 is greater than 5.

Answer: 10

When you add 6 and 4 together, you get 10.

• 4
• 5
• 6
• 3

Answer: 5

Most people have 5 fingers on one hand.

Answer: 5

3 plus 2 equals 5.