OAT Lesson 6: Explore Multiplication Strategies with Rectangles

Last updated almost 3 years ago

16 questions

JUMP START: How Many Do You See: Squares - ( 5min) 

Required

Launch: Strategies with Rectangles) - (10 min) 
I do (question 2)
We do (question 3)
You do (question 4) 

Required

Activity 2: From Expressions to Diagrams-(15 min)

Required

Lesson Synthesis: - (5 min)

Required

Cool Down: Mark or Shade Parts to Find Area - (5 min)

Required

Closure Questions:
How do you feel about today's material?
What's the difference between an expression and an equation?
Name the four representations we've seen in class so far?

OAT Lesson 6: Explore Multiplication Strategies with Rectangles

OAT Lesson 6: Explore Multiplication Strategies with Rectangles

JUMP START: How Many Do You See: Squares - ( 5min)

Launch: Strategies with Rectangles) - (10 min)

I do (question 2)

We do (question 3)

You do (question 4)

Activity 2: From Expressions to Diagrams-(15 min)

Lesson Synthesis: - (5 min)

Cool Down: Mark or Shade Parts to Find Area - (5 min)

Closure Questions:

JUMP START: How Many Do You See: Squares - ( 5min)

How many do you see? How do you see them?a.)b.)c.)

How many do you see? How do you see them?

Launch: Strategies with Rectangles) - (10 min)

I do (question 2)

We do (question 3)

You do (question 4)

Represent each diagram with expression. Then find the value of the expression.

Represent each diagram with an expression. Then find the value of the expression.

Represent each diagram with an expression. Then find the value of the expression.

Activity 1: From Diagrams to Expressions - (20 minutes)

How are Andre and Elena’s strategies alike? How are they different?

How are the numbers in Andre’s expressions related to his diagram?

How are the numbers in Elena’s expressions related to her diagram?

Here is another rectangle. Its area can be found by finding.

Mark or shade the rectangle in a way that would help you find its area.

Write one or more expressions that can represent your work on the diagram and show how you find the area.

Activity 2: From Expressions to Diagrams-(15 min)

Here are some rectangles and expressions that show how three students saw the area of the rectangles.

For each rectangle:

Lesson Synthesis: - (5 min)

What were some strategies for decomposing the rectangles to find their areas?

How might these strategies help us multiply two numbers?

Cool Down: Mark or Shade Parts to Find Area - (5 min)

Here is a rectangle whose area can be found by finding. Mark or shade the rectangle to show that we can write. 2 x (3 x 7) or (6 x 5) + (6 x 2)

What is the value of ? Explain or show your reasoning by drawing a representation.

Closure Questions:

How many do you see? How do you see them?a.)b.)c.)

How many do you see? How do you see them?

Represent each diagram with expression. Then find the value of the expression.

Represent each diagram with an expression. Then find the value of the expression.

Represent each diagram with an expression. Then find the value of the expression.

Activity 1: From Diagrams to Expressions - (20 minutes)

How are Andre and Elena’s strategies alike? How are they different?

How are the numbers in Andre’s expressions related to his diagram?

How are the numbers in Elena’s expressions related to her diagram?

Here is another rectangle. Its area can be found by finding.

Mark or shade the rectangle in a way that would help you find its area.

Write one or more expressions that can represent your work on the diagram and show how you find the area.

Here are some rectangles and expressions that show how three students saw the area of the rectangles.

For each rectangle:

What were some strategies for decomposing the rectangles to find their areas?

How might these strategies help us multiply two numbers?

Here is a rectangle whose area can be found by finding. Mark or shade the rectangle to show that we can write. 2 x (3 x 7) or (6 x 5) + (6 x 2)

What is the value of ? Explain or show your reasoning by drawing a representation.

How many do you see? How do you see them?
a.)
b.)
c.)

Here is a rectangle whose area can be found by finding.
Mark or shade the rectangle to show that we can write.
2 x (3 x 7) or (6 x 5) + (6 x 2)

What is the value of
? Explain or show your reasoning by drawing a representation.

How many do you see? How do you see them?
a.)
b.)
c.)

Here is a rectangle whose area can be found by finding.
Mark or shade the rectangle to show that we can write.
2 x (3 x 7) or (6 x 5) + (6 x 2)

What is the value of
? Explain or show your reasoning by drawing a representation.