This guided geometry lesson takes second graders on an exploration of 2D and 3D shapes. Kids will learn how to sort shapes, as well as partition them into halves, quarters and thirds. Tangrams are also featured within the exercise in order to give kids practical ways of practicing their new geometry skills. For more printable practice, try the geometry worksheets recommended by our curriculum advisors to accompany this lesson.
Geometry in kindergarten involves the basics of measurement, shapes, and spatial reasoning. Designed and reviewed by teachers, this guided lesson gives kids an overview of these concepts with clear instruction and engaging exercises. Geometry practice in kindergarten can help bolster the skills needed for higher-level concepts in the later grades. You can give kids even more practice by downloading and printing the accompanying worksheets.
3D shapes are solid objects that have three dimensions. These dimensions are length, width, and height. While 2D shapes are flat, 3D shapes objects that have depth to them. A soccer ball is a 3D shape, also known as a sphere, while a circle on a piece of paper is a 2D shape. To learn more about the different names and properties of 3D shapes, see our resources below.
Get Started With 3D Shapes
3D shapes can be complicated to work with at first because they have strange names and properties that are different from the familiar 2D shapes. We’ve put together a list of some properties of common 3D shapes and common equations that can be used when working with 3D shapes.
It has no edges or vertices (corners) It has one surface It is perfectly symmetrical All points on the surface are the same distance "r" from the center
4⁄3 × π × r3
4 × π × r2
It has a flat base and a flat top The base is the same as the top It has one curved side
π × r2 × h
2 × π × r × (r + h)
It has a flat base It has one curved side
1⁄3 × π × r2 × h
π × r × (r + s)
It has 6 Faces, each with 4 edges (and is a square) It has 12 Edges It has 8 Vertices (corner points), each is where 3 edges meet
6 × (edge length)2
It has identical ends (triangles) and flat faces It has the same cross section all along its length
Base area × length
2 × base area + base perimeter × length
Now that you have a list of some of the common 3D shapes, dive into our resources to learn how to apply these shapes and other, or move on to our volume page to learn how to calculate how much area these 3D shapes take up.