Finding Perimeter on a Grid

Finding Perimeter on a Grid

Assessment

Interactive Video

Mathematics

4th - 5th Grade

Hard

Created by

Thomas White

FREE Resource

This video tutorial explains how to find the perimeter of shapes on a grid. It begins with a rectangle example, emphasizing the importance of checking the scale, typically 1 cm per grid line. The process involves counting the lines around the shape to determine the perimeter. The tutorial also covers compound shapes, reiterating the method of counting lines rather than squares to find the perimeter.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in finding the perimeter of a shape on a grid?

Check the scale of the grid

Calculate the area of the shape

Measure the angles of the shape

Count the squares inside the shape

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important to check the scale of the grid?

To know the length of each line segment

To determine the color of the grid

To find the area of the shape

To identify the type of shape

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a 1 cm square grid indicate?

Each line is 1 cm long

Each angle is 1 cm

Each square is 1 cm²

Each shape is 1 cm wide

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What should you do if the grid scale is not mentioned?

Use a ruler to measure

Count the squares instead

Skip the problem

Assume each line is 1 cm

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do you find the perimeter of a rectangle on a grid?

Count the squares inside the rectangle

Add the lengths of all sides

Multiply the length by the width

Subtract the width from the length

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the perimeter of a rectangle with 12 lines counted on a grid?

12 cm

6 cm

36 cm

24 cm

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When counting lines for a compound shape, what should you avoid doing?

Counting the lines around the outside

Counting the squares around the outside

Checking the scale

Measuring the angles

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