Gr 3 M1 L5 and L6

​Materials Managers:

​Each person at your table will need a dry erase board and marker.

​

Share the erasers!

​

​Do NOT grab the cubes yet.

Fill in the Blanks

Fill in the Blanks

Open Ended

Fill in the blanks for our division sentence of 10 divided into 2 equal groups:

______ $$\div$$  _____ = ______

Fill in the Blanks

Fill in the Blanks

Open Ended

Brandi has 18 bracelets. After she organizes the bracelets by color, she has 3 equal groups. How many bracelets are in each group?

Use your whiteboard to read, draw, and write.

​Materials Managers:

​Each person at your table will need their bag of 18 cubes.

​

​Once everyone has their cubes, you will have 1 and a half minutes to count your cubes. Make sure you have 18!

Open Ended

18 ÷ 6 = 3

How does this number sentence relate to the problem we just solved?

Multiple Choice

14 ÷ 7 = ______

Turn and talk to a partner. What information do we already have if we know 7 is the size of the groups?

What information don’t we know?

• We know the total and the size of the groups.

  We don't know how many groups there are.

• We know everything.

• We know the total.

  We don't know anything else.

• We know the size of the groups.

  We don't know the total.

Poll

We divide when we we want to find...

(select all that apply)

• The size of the groups

• The total

• The number of groups

• The bunny

Multiple Choice

Look at the array and describe the following relationships:

-Total number of children and total number of dots.

• The total number of children is the same as the total number of dots.

• The total number of children is less than the total number of dots.

• The total number of children is more than the total number of dots.

Multiple Choice

Look at the array and describe the following relationships:

- Number of children on each team and the number of dots in a row.

• The number of children on each team is less than the number of dots in a row.

• The number of children on each team is more than the number of dots in a row.

• The number of children on each team is the same as the number of dots in a row.

Multiple Choice

Look at the array and describe the following relationships:

- Number of teams and the number of rows.

• The number of teams is less than the number of rows.

• The number of teams is more than the number of rows.

• The number of teams is the same as the number of rows.

​On your whiteboards...

Draw an array that shows the equation 15 ÷ 3 = 5 where the quotient - that means the answer - represents the size of groups.​

​

Don't erase! You will need your array for the next part.

Multiple Choice

15 ÷ 3 = 5 3 x 5 = 15

Where do you find the quotient in our multiplication equation?

• The quotient is the second number in our multiplication equation. (5)

• The quotient is the product (total) of the multiplication equation. (15)

• The quotient doesn't exists!

• The quotient is the first number in our multiplication equation. (3)

Multiple Choice

Which number represents the size of the groups in both problems:

15 ÷ 3 = 5 3 x 5 = 15

• 15

• 3

• 5

• 0

Open Ended

3, 6, 9, 12, 15, 18, 21, 24

8 x 3 = 24

How many threes make 24? Answer in a complete sentence.

_______ threes make 24.

Open Ended

24 ÷ 3 = 8

Twenty-four divided in threes makes how many groups? Answer in a complete sentence.

Twenty -four divided into threes makes _______ groups.

Multiple Choice

8 x 3 = 24 24 ÷ 3 = 8

True or false: Both equations ask how many threes are in 24.

• True

• False

Open Ended

2, 4, 6, 8, 10, 12, 14, 16, 18

2 x 9 = 18

How many twos make 18? Answer in a complete sentence.

_______ twos make 18.

Open Ended

18 ÷ 2 = 9

Eighteen divided in twos makes how many groups? Answer in a complete sentence.

Eighteen divided into twos make _____ groups.

​Materials Managers:

​Please collect the dry erase boards and markers.

Make sure everyone just has a pencil!

​Debrief Time!

​How do arrays represent both multiplication and division?

​

What is the relationship between the quotient in division and the unknown factor in a related multiplication equation?