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.
First grade geometry covers basic shapes, as well as an introduction to 3D shapes. Our team of curriculum experts designed the following guided lesson, which provides an overview of first grade geometric concepts and gives kids lots of opportunities for practice. If your child needs more support in a different format, check out the suggested first grade geometry worksheets.
What makes a cylinder a cylinder? How does it compare to a cube or cone? Use this great geometry resource with your students to practice identifying the characteristics of a cylinder and comparing them to other three-dimensional shapes.
A basic curvilinear shape, the cylinder has been studied for thousands of years. Your students will quickly understand the two main components of a right circular cylinder: circular ends perpendicular to a central axis. Teachers and students alike will appreciate the Education.com worksheets and games provided below, which cover details and provide examples of the dimensions of a cylinder.
Learn More About Cylinders
While scholars have studied the cylinder for a long time, your students might be new to the concept. You can help them immediately understand the basic principles of a cylinder by presenting them with common objects such as a can of soda, or a container of tennis balls.
Cylinder lesson plans should include two important cylinder formulas. To calculate the exact properties of a cylinder, students will need to understand how to use exponents, in addition to following the rules of PEMDAS. You may need to define the variables h and r to students before covering the following:
Volume: V = πr2h
Surface area is divided into three parts:
the top: πr2
the bottom: πr2
the side: 2πrh
There are other, more advanced cylinder formulas, but volume and surface area are great starting points for many students. There are also different types of cylinders: open ends on a cylinder make it an “open cylinder,” while flat surfaces on either end grant the name “solid cylinder.”
If you introduce cylinders to your students using representations such as a barrel or can, they should be able to grasp that cylinders have both an axis and circular ends. From there, you can further break down a cylinder into top, bottom, and side.
Once your students are able to comprehend the surface area of the ends and side, they will only need to make a slight shift in mindset to calculate cylinder volume. Use the Education.com resources above to help your students open up a whole new can of cylinder knowledge.