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Learn Geometry for Free


The best videos, books, apps, and other learning resources our members recommend:

2nd Grade Math Worksheets: Geometry

2nd | Worksheet/Printable

Our grade 2 geometry worksheets focus on deepening students understanding of the properties two dimensional shapes, including the concepts of congruency, symmetry, area and perimeter. We also...

2
Free

Analytic Geometry

6th - 9th | Online class

In analytic geometry, also known as coordinate geometry, we think about geometric objects on the coordinate plane. For example, we can see that opposite sides of a parallelogram are parallel by by...

Free

Basic geometry

3rd - 7th | Online class

Let’s draw points, lines, line segments, and rays. We’ll also think about perpendicular and parallel lines and identify these in two-dimensional figures. Common Core Standard: 4.G.A.1

Free

California Standards Test for Geometry

7th - High School | Online class

Sal does the 80 problems from the released questions from the California Standards Test for Geometry. Basic understanding of Algebra I necessary.

Free

Curriki Geometry

9th - High School | Online resource

This collection includes resources that are used throughout the six projects of Curriki Geometry. Curriki is grateful for the tremendous support of our sponsor, AT&T Foundation. Our TeamCurriki...

Free

Geoboard

Kindergarten - 3rd | iPhone/iPad

Geoboard is a tool for exploring a variety of mathematical topics introduced in the elementary and middle grades. Learners stretch bands around the pegs to form line segments and polygons and make...

Free
Offers paid add-ons

Geometry

5th - High School | Online resource

Free, interactive video lessons on geometry! The mathematics of lines, shapes, and angles. Essential stuff for describing the world around you.

Free

Geometry

Kindergarten - 2nd | Online class

Learn how different shapes have different numbers of corners, different side lengths, and so on. Use these properties to help you recognize shapes.

Free

Geometry

4th - High School | Online class

Roughly 2400 years ago, Euclid of Alexandria wrote Elements which served as the world’s geometry textbook until recently. Studied by Abraham Lincoln in order to sharpen his mind and truly...

Free

Geometry

3rd - 6th | Online class

Let’s draw points, lines, line segments, and rays. We’ll also think about perpendicular and parallel lines and identify these in two-dimensional figures. Common Core Standard: 4.G.A.1

Free

Geometry

4th - 6th | Online class

We’re going to stick our toes into the proverbial waters of geometry! For those of you that are visual learners you’ll love this topic. We’ll examine all kinds of lines and shapes in the 1st, 2nd,...

Free

Geometry

5th - 7th | Online class

Learn how to find the area, volume, and surface area of all sorts of geometric shapes. Also work with shapes on the coordinate plane.

Free

Geometry

6th - 9th | Online resource

If you like playing with objects, or like drawing, then geometry is for you! Geometry can be divided into: Plane Geometry is about flat shapes like lines, circles and triangles … shapes that can be...

Free

Geometry

7th - 9th | Online class

Welcome. I’d like to introduce you to Mr. Angle. Nice to meet you. So nice to meet you. This tutorial introduces us to angles. It includes how we measure them, how angles relate to each other and...

Free

Geometry Aligned to CCSS-M Standards

9th - High School | Online resource

This collection contains resources for a high school course in Geometry. The resources are organized by Common Core State Standards for Mathematics and reflect a ninth or tenth grade course. Both...

Free

Geometry Content Inventory

9th - High School | Online resource

Virtual Nerd’s patent-pending tutorial system provides in-context information, hints, and links to supporting tutorials, synchronized with videos, each 3 to 7 minutes long. In this non-linear...

Free

Geometry Course

High School | Online resource

Geometry covers points, lines, planes, angles, parallel lines, triangles, similarity, trigonometry, quadrilaterals, transformations, circles and area. The material is text and video lectures, but...

Free

Geometry Help

5th - 9th | Online resource

Need some geometry help? We have more than thirty excellent geometry lessons here, broken up in general topics. Make sure to browse all of the topics to find what you need, or search by keyword.

Free

Geometry Lesson Series

6th - High School | Online resource

Students use the geometry lessons in this series to explore and learn essential geometric postulates, theorems, and formulas through video and text. Students will confirm their learning with...

Free

Measurement and geometry

2nd - 4th | Online class

In 2nd grade, you learned to measure lengths. Now we can measure the length around the edge of an object (perimeter) and how much “space” something takes up on a flat surface (area).

Free

Preschool Geometry Worksheets

Pre-K | Printable

Preschool shapes worksheets are the perfect way to teach your child about all the different kinds of shapes. Try our preschool shapes printables with your kid.

Free
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RWM103: Geometry

6th - High School | Online class

Unit 1: The Basics of Geometry From a young age, we learn basic vocabulary and basic concepts that lead us to understand greater concepts. In this unit, you will learn about the basic building...

Free

Special properties and parts of triangles

9th - College | Online class

In this tutorial, we study lines that are perpendicular to the sides of a triangle and divide them in two (perpendicular bisectors). As we’ll prove, they intersect at a unique point called the...

Free

Tools of geometry

6th - 9th | Online class

Roughly 2400 years ago, Euclid of Alexandria wrote Elements which served as the world’s geometry textbook until recently. Studied by Abraham Lincoln in order to sharpen his mind and truly...

Free

Transformations, congruence, and similarity

9th - College | Online class

Learn about geometric transformations and how they’re used to understand the meaning of “similar” and “congruent”.

Free

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Geometry: Learn how lines and shapes interact and the math used to describe them with the learning resources listed here.

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