Desk Area Calculation Strategies

This tutorial teaches how to solve a word problem involving fraction division. It explains two methods: using multiplication and division to find the length of a student desk given its area and width. The tutorial emphasizes visualizing the problem with a rectangle and using mathematical operations like multiplication, division, and cancellation to find the solution.

What is the area of the student desk in the problem?

• 15/16 of a square meter

• 5/4 of a square meter

• 1 square meter

• 3/4 of a square meter

What is the width of the desk according to the problem?

• 5/4 meters

• 15/16 meters

• 1 meter

• 3/4 meters

In the first approach, what shape is used to represent the desk?

• Square

• Rectangle

• Triangle

• Circle

What is the first step in the first approach to solve the problem?

• Draw a rectangle

• Convert fractions to decimals

• Add the width and length

• Divide the area by the width

How do you convert the denominator 4 to 16 in the first approach?

• Add 12

• Subtract 4

• Multiply by 4

• Divide by 4

What is the calculated length of the desk using the first approach?

• 3/4 meters

• 1 meter

• 5/4 meters

• 15/16 meters

What is the second approach to solve the problem?

• Divide the area by the width

• Add the area and width

• Subtract the width from the area

• Multiply the area by the width

What operation is performed on the division sign in the second approach?

• It is turned into a division sign

• It is turned into an addition sign

• It is turned into a multiplication sign

• It is turned into a subtraction sign

What is the reciprocal of 5/4 used in the second approach?

• 4/5

• 5/4

• 1/5

• 4/1

Which numbers are canceled out due to a common factor in the second approach?

• 5 and 16

• 15 and 4

• 15 and 5

• 4 and 5