Multiplying Decimals (Models) Guided Lesson

Multiplying Decimals

LO: SWBAT multiply and divide positive rational numbers (decimals). 
DOL:Given a set of problems, students will correctly multiply and divide positive rational numbers (decimals) in at least 4 of 5 problems.

Poll

Which best describes your mood?

Poll

How much do you know about multiplying decimals?

Draw

Fill in the model to show 0.74

Draw

Fill in the model to show 1.63

Multiple Select

Which TWO equations match the picture?

• 3 + 3

• 2 + 3

• 2 x 3

• 2 + 2

Draw

Model with different colors

4 x 0.40

Draw

Model with different colors.

3 x 0.2

Labelling

Label the multiplication equation to match the model.

Drag labels to their correct position on the image

3

0.23

6.9

0.69

2.3

Labelling

Label the multiplication equation to match the model.

Drag labels to their correct position on the image

3

0.33

3.3

1.1

0.11

Multiple Choice

Which color represents the product in this model?

• blue
• white
• pink
• purple

Multiple Choice

• The product is 80.

• The product is 15.

• The product is 0.15.

• The quotient is 0.15.

Multiple Choice

Which equation matches the model?

• 2 x 0.3 = 0.6
• 3 x 0.2 = 0.6
• 2 x 3 = 0.6
• 3 x 2 = 6

Multiple Choice

How many  are in each group? 

• 1.5
• 15
• 0.15
• 1.5

Multiple Choice

Which equation does this model represent?

• 4 x 9 = 36

• 0.4 x 0.9 = 0.36

• 4 x 0.9 = 3.6

• 4 + 9 = 13

Multiple Choice

Which number line represents the problem, 0.3 x 4?

Multiple Choice

Which equation does this model represent?

• 0.80 x 0.33 = 0.24

• 0.8 x 0.24 = 0.3

• 0.3 x 0.8 = 0.24

• 0.24 x 0.3 = 0.8

Multiple Choice

Select the multiplication problem that is correctly graphed on the grid.

• 0.4 x 0.1

• 0.1 x 0.5

• 0.4 x 0.2

• 0.1 x 0.1

Multiple Choice

Select the multiplication problem that is correctly graphed on the grid.

• 0.9 x 0.3

• 0.9 x 0.5

• 0.8 x 0.5

• 0.4 x 0.9

Poll

How knowledgeable are you at modeling decimal multiplication?

• Piece of Cake

• Good but I need more practifce

• I am somewhat struggling

• I am totally lost

Multiple Choice

Which grid correctly shows the multiplication problem below?

0.8 x 0.9