Perimeter Puzzles: Solving Rectilinear Shapes

Perimeter Puzzles: Solving Rectilinear Shapes

Learning Objective

At the end of the lesson, you will be able to calculate the perimeter of rectilinear shapes using given measurements.

What do you already know about finding the perimeter of shapes?

What is Perimeter?

The perimeter is the distance around the outside of a shape. It is the sum of all the sides of the shape.

Rectilinear Shapes

Rectilinear shapes are made up of straight lines and have right angles. Examples include rectangles, squares, and L-shaped figures.

Calculating Perimeter

To find the perimeter of a shape, add up the lengths of all its sides. Make sure to use the correct units for measurement.

Practice Time!

Solve the perimeter of the given rectilinear shapes: A = 5 cm, B = 3 cm, C = 7 cm, D = 4 cm.

Interactive Quiz

What is the perimeter of the given shape? A = 10 cm, B = 6 cm, C = 10 cm, D = 6 cm.

Real-life Scenarios

Discuss real-life scenarios where knowing perimeter is important, such as fencing a garden or measuring the length of a road.

Wrap-Up and Review

Recap what we've learned about perimeter and rectilinear shapes. What was the most challenging part for you?

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.