# 9th Grade Geometry

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

### AGS Geometry

7th - High School | ProductGo beyond the basics of Geometry and investigate the world of planes and solids. Chapter openers and colorful photos invite exploration of geometric solids, triangles, the Pythagorean Theorem,...

### Analytic Geometry

6th - 9th | Online classIn 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...

### California Standards Test for Geometry

7th - High School | Online classSal does the 80 problems from the released questions from the California Standards Test for Geometry. Basic understanding of Algebra I necessary.

### Crafty Cut

5th - High School | iPhone/iPadCrafty Cut is a block slicing game that offers three creative game modes dealing with 2D and 3D geometry. This app can be downloaded for free, but the complete version requires purchase. There is...

### Curriki Geometry

9th - High School | Online resourceThis 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 Geometry Worksheets

7th - High School | Worksheet/PrintableLarge selection of free printable Geometry worksheets.

### Geometry

5th - High School | Online resourceFree, interactive video lessons on geometry! The mathematics of lines, shapes, and angles. Essential stuff for describing the world around you.

### Geometry

4th - High School | Online classRoughly 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...

### Geometry

9th - High School | Book, Online classGeometry introduces students to mathematics as a deductive science. It shows how a few simple assumptions about points, lines, etc., can lead to a substantial body of geometric theorems and the...

### Geometry

6th - 9th | Online resourceIf 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...

### Geometry

7th - 9th | Online classWelcome. 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...

### Geometry Aligned to CCSS-M Standards

9th - High School | Online resourceThis 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...

### Geometry and spatial reasoning

Pre-K - 9th | Online resourcePractice geometry and spatial reasoning skills on IXL, have fun, and win awards!

### Geometry Content Inventory

9th - High School | Online resourceVirtual 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...

### Geometry DVD Instruction

9th - High School | DVDThis course is designed to help students improve their problem solving and deductive reasoning through the study the geometric points, lines, and shapes. It covers the practical subjects related to...

### Geometry Help

5th - 9th | Online resourceNeed 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.

### Geometry Lesson Series

6th - High School | Online resourceStudents 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...

### Geometry (online)

9th - High School | Online classThis online course gives students a comprehensive introduction to Euclidean geometry and the principles of logical reasoning. After an introduction to the GradPoint interface and the basic tools...

### Geometry Online with Books (4th ed.)

8th - 9th | Book, DVD, Online classGeometry (4th ed.) provides an incremental approach to proofs in various formats and systematically promotes the review and retention of algebraic skills with an introduction to trigonometry. It...

### Geometry Textbook - Tutor in a Book

6th - 9th | BookNeed help with Geometry? Designed to replicate the services of a skilled private tutor, the new and improved Tutor in a Book’s Geometry is at your service! TIB’s Geometry is an extremely thorough,...

### Higher Altitudes in Geometry Digital Textbook Bundle

9th - High School | ebook/KindleHigher Altitudes in Geometry delves further into the relationships between angles, triangles, quadrilaterals, circles, and simple three dimensional shapes and more! There are 180 for One Low Price!...

### Homeschool Geometry Curriculum

6th - 9th | Online classMathHelp.com offers a comprehensive homeschool Geometry curriculum. Our stand-alone curriculum has everything your child needs, including efficient, professional instruction throughout every lesson.

### Home Study Companion Geometry

9th - High School | ebook/Kindle, DVDHSC Geometry is a complete high school Geometry course based on the exceptional, but now out of print text, Geometry: A Guided Inquiry, by Chakerian, Crabill, and Stein. (A digital copy of the text...

### Introduction to Geometry Playlist

6th - College | Online/YouTube videothenewboston Official Introduction to Geometry Playlist!

### Math-U-See Geometry

9th - High School | ProductGeometry: Points, lines, planes, angles, circles, triangles, quadrilaterals, Pythagorean Theorem, conic sections, proofs and more. Math-U-See Geometry is typically a good fit for a student entering...

### Prentice Hall Mathematics Geometry

9th - High School | ProductTraditional geometry concepts are highlighted through this text. Your child will learn to visualize and see relationships between two figures, relate mathematical functions with figures, measure...

### RWM103: Geometry

6th - High School | Online classUnit 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...

### Special properties and parts of triangles

9th - College | Online classIn 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...

### Tools of geometry

6th - 9th | Online classRoughly 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...

### Transformations, congruence, and similarity

9th - College | Online classLearn about geometric transformations and how they’re used to understand the meaning of “similar” and “congruent”.