Home/First Grade Math/Week 29: Two-dimensional shapes /Lesson 1
K-5 friendly lesson
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Name the Two-Dimensional Shape

šŸŸ¦ 2D shapes are flat shapes. Learn their names by counting sides and corners.

Lesson 1

Concept

Common 2D shapes: ā€¢ Circle: 0 corners ā€¢ Triangle: 3 sides, 3 corners ā€¢ Square: 4 equal sides ā€¢ Rectangle: 4 sides (opposite sides equal) To name a shape: 1. Count sides 2. Count corners 3. Check if sides are equal or not

Try it

Name each: 1. Shape with 3 sides 2. Shape with 4 equal sides 3. Shape that is round with no corners 4. Shape with 4 sides but not all equal Draw: 5. Draw one triangle and one rectangle.