Understanding the Perimeter of a Rectangle

The video tutorial explains how to find the perimeter of a rectangle using three different strategies. The first strategy involves adding all the sides of the rectangle. The second strategy uses the concept of doubling the lengths and widths, and applying the formula 2l + 2w. The third strategy simplifies the process by adding two adjacent sides and doubling the result. Each method is explained with examples, and the importance of using the correct units is emphasized. The video encourages viewers to practice these strategies to become proficient in calculating the perimeter.

What is the perimeter of a shape?

• The space inside a shape

• The distance around the outside of a shape

• The diagonal length of a shape

• The volume of a shape

Tags

CCSS.4.MD.A.3

Which of the following is a correct way to find the perimeter of a rectangle using the first strategy?

• Subtract the width from the length

• Multiply the length by the width

• Add the length and width, then multiply by two

• Add all four sides together

Tags

CCSS.4.MD.A.3

In the second strategy, what is the formula used to calculate the perimeter?

• l - w

• 2l + 2w

• l + w

• l x w

Tags

CCSS.4.MD.A.3

How do you calculate the perimeter using the second strategy?

• Multiply the length by the width

• Subtract the width from the length

• Double the length and width, then add them

• Add the length and width, then multiply by two

Tags

CCSS.4.MD.A.3

What is the formula for the third strategy to find the perimeter of a rectangle?

• l x w

• 2(l + w)

• l - w

• l + w

In the third strategy, what do you do after adding two adjacent sides?

• Multiply by two

• Add the opposite sides

• Divide by two

• Subtract the smaller side

Tags

CCSS.4.MD.A.3

Which strategy is considered the quickest way to find the perimeter of a rectangle?

• Subtracting the width from the length

• Using adjacent sides

• Doubling equal sides

• Adding all sides

Tags

CCSS.4.MD.A.3

What is the benefit of using the third strategy?

• It requires fewer calculations

• It is more accurate

• It uses less paper

• It is more fun

Tags

CCSS.2.MD.A.3

Why is it important to include the unit of measurement when calculating the perimeter?

• To make the answer look longer

• To make the calculation easier

• To confuse the reader

• To ensure clarity and accuracy

Tags

CCSS.3.MD.D.8

What should you do after learning the three strategies for finding the perimeter?

• Ignore the formulas

• Only use the first strategy

• Re-watch the video and take notes

• Forget about them

Tags

CCSS.3.MD.D.8