LESSON 11OBJECTIVE: FIND THE AREA OF RECTANGLES WITH MIXED-BY-MIXED AND FRACTION-BY-FRACTION LENGTHS BY TILING, RECORD BY DRAWING, AND RELATE TO FRACTION MULTIPLICATION

By the end of the lesson you will be able to…

5th Grade Module 5Lesson 11K. Clauson

Time to Sprint!

Multiply Decimals

Multiplying FractionsUse Interwrite Tools

Application ProblemMrs. Golden wants to cover her 6.5 foot by 4 foot bulletin board with silver paper that comes in 1-foot squares. How many squares does Mrs. Golden need to cover her bulletin board? Will there be any fractional pieces of silver paper left over? Explain why or why not. Draw a sketch to show your thinking.

Let’s draw out what this problem is saying!

Application Problem ~ ANSWER!Mrs. Golden wants to cover her 6.5 foot by 4 foot bulletin board with silver paper that comes in 1-foot squares. How many squares does Mrs. Golden need to cover her bulletin board? Will there be any fractional pieces of silver paper left over? Explain why or why not. Draw a sketch to show your thinking.

Teacher notes

The following will need to be created ahead of time:

* Copies of Rectangles A to E for student groups

Students will need:

* Problem Set

* Patty paper units for tiling

* Mystery rectangles A - E

Concept Development

Breaking News!The Eureka Laboratory has one again lost 4 rectangles. (We really need to get those locks fixed! ) 5th grade, we once again need your help to determine those areas and make everything right again! Ms. Patty Paper will be back to help you with the discovery!Good luck!

Area = length x width

Rectangle A

Place as many tiles on Rectangle A as possible.

* Place a whole patty paper there and just shade ¼

Rectangle A

Area = 4 ½ x 2 ½ = _______

Draw here!

Ok detectives, you are prepared for the rest of the mission! Work with your group to find the length, width, and area of Rectangles B, C, and D using Ms. Patty paper to help you! Record your findings on your Problem Set. Answer the last two questions (#5 & 6) in the time remaining. You may record your tiling without drawing each tile if you wish!

5th Grade Module 5- Lesson 11K. Clauson

LET’S DEBRIEF• Take 2 minutes to check your answers with your partner.• Let’s share any insights you had while solving these problems.

• Compare the rectangles we tiled today to the rectangles we tiled yesterday? What do you notice? How did that change the way we had to tile?

• Which rectangles were the easiest to tile? Which was the hardest? Why?

• How could our work in Lessons 10 and 11 relate to a real world experience?

5th Grade Module 5– Lesson 11K. Clauson

EXITTICKETLESSON 11