Mastering Area and Perimeter

What do you already know about area and perimeter?

What is Area?

Area is the measure of the surface enclosed by a shape. It is measured in square units.

Calculating Area

To calculate the area of a rectangle, multiply its length by its width.

What is Perimeter?

Perimeter is the distance around the outside of a shape. It is measured in linear units.

Calculating Perimeter

To calculate the perimeter of a shape, add up the lengths of all its sides.

Area vs. Perimeter

Area and perimeter are different measurements. Area tells us how much space is inside a shape, while perimeter tells us the distance around the shape.

Real-Life Examples

Area and perimeter are used in many real-life situations, such as determining the amount of paint needed for a wall or the length of fencing required for a garden.

Practice Time

Solve the following problems: 1) Find the area of a rectangle with length 5 units and width 3 units. 2) Calculate the perimeter of a square with side length 8 units.

Write down 3 things you learned in this lesson.

Have students enter three things they learned in this lesson. With this they can indicate their own learning efficiency of this lesson.

Write down 2 things you want to know more about.

Here, students enter two things they would like to know more about. This not only increases involvement, but also gives them more ownership.

Ask 1 question about something you haven't quite understood yet.

The students indicate here (in question form) with which part of the material they still have difficulty. For the teacher, this not only provides insight into the extent to which the students understand/master the material, but also a good starting point for the next lesson.