Discovering Plane Shapes

• Mathematics
• Secondary Education
• Age 11

Discovering Plane Shapes

Learning Objective

At the end of the lesson, you will be able to identify and differentiate between different plane shapes.

Introduce the learning objective and explain to the students what they will be able to do by the end of the lesson.

What do you already know about plane shapes?

What are Plane Shapes?

Plane shapes are flat, two-dimensional shapes that can be drawn on a piece of paper. Some examples include triangles, rectangles, and circles.

Introduce the concept of plane shapes and provide examples of different shapes.

Triangles

Triangles have three sides and three angles. They can be classified by their angles as acute, obtuse, or right triangles.

Provide information about triangles and how they can be classified by their angles.

Quadrilaterals

Quadrilaterals are four-sided plane shapes. Some examples include squares, rectangles, and parallelograms.

Introduce the concept of quadrilaterals and provide examples of different shapes.

Circles

Circles are round plane shapes with no corners or edges. They have a radius and a diameter.

Provide information about circles and how they differ from other plane shapes.

Interactive Activity: Identifying Shapes

Show a series of images of different plane shapes and ask students to identify each shape.

Provide instructions for the interactive activity and ensure that all students are participating.

Properties of Plane Shapes

Each plane shape has unique properties, such as the number of sides, angles, and measurements of those angles.

Discuss the unique properties of different plane shapes and how they can be used to classify shapes.

Real World Examples

Plane shapes can be found in many real-world objects, such as buildings, furniture, and art.

Give examples of real-world objects that contain plane shapes and encourage students to look for shapes in their own environment.

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.