Lesson Plan
Know Your Shapes!
Grade:
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In this lesson, young learners will be introduced to defining and non-defining attributes (e.g., a circle is round and a closed shape) of common shapes such as circles, triangles, and rectangles. Ideal for first graders, children will learn the differences between two-dimensional shapes and identify them and their attributes. Kids will be tasked with a shape hunt to find circular, triangular, and rectangular shapes in either their home or classroom. They will then draw them. This lesson provides young mathematicians with a great introduction to geometry!
Learning Objectives
Students will be able to identify defining attributes of basic shapes. Students will be able to identify the number of sides that a triangle, rectangle, square, and circle have.
Introduction
(10 minutes)- Ask your students if they know what defining attribute means.
- Explain that it means a characteristic that specifically describes something. For example, a ball is round, so round is its defining attribute.
- Ask your students to define non-defining attribute now that they know what a defining attribute is.
- Explain that it is a characteristic that could be there one day but could be changed the next day. For example, the orange ball could be painted red, and then it would be a red ball.
Beginning
- Show students real objects such as different types and sizes of balls, or photographs of real objects.
Intermediate
- Draw a shape such as a triangle on the board, and change the non-defining attibutes by coloring it different colors, drawing it bigger or smaller, and drawing it upside down or sideways.
- Tell students that although the triangle may look different, we know that it is a triangle because it is a flat, closed shapes with three staight sides and three corners.