YEAR 1 Multiplication Division Count in 10 s

YEAR 1 Multiplication & Division Count in 10 s Making equal groups Adding equal groups Block 1 – Week 1

Lesson 1 Step: Count in 10 s

Fluency Let’s count in 10 s to 100 together … 10 20 30 40 50 60 70 80 90 100

Fluency Complete the sentences. There are 10 _____ doughnuts on each tray. 2 trays. There are _____ There are 20 _____ doughnuts altogether.

Fluency Complete the sentences. There are 10 _____ ice cream scoops in each bowl. 6 bowls. There are _____ There are 60 _____ ice cream scoops altogether.

Fluency Complete the sentences. There are 10 _____ apples in each basket. 3 baskets. There are _____ There are 30 _____ apples altogether.

Fluency How many 10 s in 50? 5 tens

Fluency How many 10 s in 30? 3 tens

Fluency How many 10 s in 80? 8 tens

Reasoning Spot the mistake in the number track. 50 40 20 30 Explain your answer. The number 20 and 30 are in the wrong order. It should be 50, 40, 30, 20, 10. 10

Gina wants to buy 30 pears from the shop. Are there enough? How do you know? Explain your answer. Yes. There are 10 pears in each basket and there are four baskets so that is 40 pears in total. Problem solving

Lesson 2 Step: Count in 10 s (Practical)

How many lots of 10 are there? _____2 20 How many altogether? _____ Fluency

How many lots of 10 are there? _____1 10 How many altogether? _____ Fluency

How many lots of 10 are there? _____4 40 How many altogether? _____ Fluency

How many lots of 10 are there? _____5 50 How many altogether? _____ Fluency

Reasoning Rob says, The number of tens in the number 40 is even. Is Rob correct? Explain how you know. Yes, there are 4 tens. 4 is an even number.

Problem solving Match the number of tens to its total. 30 50 40

Lesson 3 Step: Making equal groups

Fluency Equal or unequal? equal unequal

Fluency Equal or unequal? unequal

Complete the sentences. There are 5_____ groups, each with _____2 ice cream scoops. Fluency

Complete the sentences. 10 apples. There are 4_____ groups of _____ Fluency

Complete the sentences. 10 fish. 3 groups of _____ There are _____ Fluency

Complete the groups. Fluency

Complete the groups. Fluency

Reasoning True or false? There are 4 groups of 5 pencils. Explain your answer. False, there are five groups of 4 pencils.

Problem solving Kat says, I have 3 unequal groups. On your whiteboards, draw what the groups could look like.

Lesson 4 Step: Adding equal groups (Practical)

Fluency Let’s try counting backwards in 10 s … 100 90 80 70 60 50 40 30 20 10

Write an addition sum to represent the picture below? 2+2+2=6 Fluency

Write an addition sum to represent the picture below? 2 + 2 + 2 = 10 Fluency

Write an addition sum to represent the picture below? 5 + 5 = 15 Fluency

Write an addition sum to represent the picture below? 5 + 5 + 5 = 25 Fluency

Write an addition sum to represent the picture below? 10 + 10 = 30 Fluency

Write an addition sum to represent the picture below? 10 + 10 = 50 Fluency

Fluency Match the number of tens to its total. 10 + 10 5+5 2 + 2 +2 + 2

Reasoning Sue says, The picture shows 3 + 3. Is Sue correct? No Sue is not correct, the picture shows 2 + 2.

Create a story for the following picture. An example could be: I rolled 5 dice and all of them landed on the number 2. This is equivalent to 10. Problem solving

Lesson 5 Step: Adding equal groups

How many cherries altogether? 6 2 + 2 = _____ 3 groups of _____ 2 cherries There are _____ 6 which is equivalent to _____. Fluency

How many doughnuts altogether? 10 2 + 2 + 2= _____ 5 groups of _____ 2 doughnuts There are _____ 10 which is equivalent to _____. Fluency

How many pencils altogether? 20 5 + 5 + 5 = _____ 4 groups of _____ 5 pencils There are _____ 20 which is equivalent to _____. Fluency

How many fish altogether? 20 10 + 10= _____ 2 groups of _____ 10 fish There are _____ 20 which is equivalent to _____. Fluency

How many apples altogether? 40 10 + 10= _____ 4 groups of _____ 10 apples There are _____ 40 which is equivalent to _____. Fluency

Fluency Complete the table. Picture Repeated addition 2+2+2 5+5 10 + 10 Bar model Stem sentence 6 3 groups There are ____ 2 2 2 5 10 5 is of ____ which 10 equivalent to ____. 3 groups There are ____ 30 10 6 equivalent to ____. 2 groups There are ____ 10 5 2 is of ____ which 10 10 is of ____ which 30 equivalent to ____.

Fluency Complete the table. Picture Repeated addition 2+2+2+ 2+2 5+5+5+ 5+5 10 + 10 Bar model Stem sentence 10 5 groups There are ____ 2 2 25 5 5 40 10 10 2 is of ____ which 10 equivalent to ____. 5 groups There are ____ 5 is of ____ which 25 equivalent to ____. 4 groups There are ____ 10 is of ____ which 40 equivalent to ____.

Kat and Asha are making equal groups of doughnuts. We need one more group to make 40. Reasoning We need 10 more doughnuts to make 40. Kat Who do you agree with? Explain why. Both are correct. One more group of ten is the same as adding 10 more doughnuts. Asha

Problem solving I have nine groups of 2. Jack I have 2 groups of 10. Matt Who has the most? Explain how you know. Matt has the most. 2 groups of 10 = 20. Jack has 9 groups of 2 = 18.