What Are 2D Shapes?
Teaching this part of the math curriculum for the first time in a while? Here's a quick refresher from the teachers on the Teach Starter team! Two-dimensional shapes, or 2D shapes, are shapes that have only length and width, but no depth. Some common examples of 2D shapes that we teach in elementary school include:- Square
- Rectangle
- Triangle
- Circle
- Ellipse
- Parallelogram
- Rhombus
2D Shapes Throughout Elementary School
As students leave the primary grades and develop their math skills, they will learn about the relationships between different 2D shapes, such as:- How a rectangle is made up of two congruent squares
- How a square can be divided into two congruent rectangles
- How to measure different features of shapes