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2.02 Counting on

Lesson

Are you ready?

Do you remember how to count forward by $10$10?

What is $20+10$20+10?

Learn

Let's see how we can count on by $1$1, and then $2$2. What patterns do we make?

Apply

Question 1

Write the next number in the pattern:

  1. $1$1, $3$3, $5$5, $7$7, $9$9, $11$11, $\editable{}$

Learn

What patterns do you see if we count by $5$5, or $10$10?

 

Apply

Question 2

Write the next number in the pattern:

  1. $4$4, $9$9, $14$14, $19$19, $24$24, $29$29, $\editable{}$

Remember!

When we count on, we can use the pattern to help us work out the next number.

Outcomes

3.OA.D.9

Identify patterns in a multiplication chart and explain them using properties of operations. For example, in the multiplication chart, observe that 4 times a number is always even (because 4 x 6 = (2 x 2) x 6 = 2 x (2 x 6), which uses the associative property of multiplication) or, for example, observe that 6 times 7 is one more group of 7 than 5 times 7 (because 6 x 7 = (5 + 1) x 7 = (5 x 7) + (1 x 7), which uses the distributive pro

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