CK-12 Foundation
Ck 12: Elem Math: Comparing Angles
[Free Registration/Login may be required to access all resource tools.] A video example and practice questions where students are presented with a set of angles and must choose the statements that are correct. [1:44]
CK-12 Foundation
Ck 12: Elem Math: Counting the Angles in a Closed Figure
[Free Registration/Login may be required to access all resource tools.] Practice counting the number of angles in a closed shape in this learning module. Includes video demonstration of a sample problem [0:56] and practice questions.
CK-12 Foundation
Ck 12: Elem Math: Identifying the Angle Given the Measure
[Free Registration/Login may be required to access all resource tools.] In this learning module, students are asked to match a given angle measure with one in a drawing. Includes video demonstrating a sample problem [2:14] and a set of...
CK-12 Foundation
Ck 12: Geometry: Angle Classification Grade 6
[Free Registration/Login may be required to access all resource tools.] Classify acute, right, obtuse, and straight angles.
CK-12 Foundation
Ck 12: Geometry: Angle Classification
[Free Registration/Login may be required to access all resource tools.] Classify angles as acute, obtuse, right or straight.
Sophia Learning
Sophia: Complementary and Supplementary Angles
Complementary and Supplementary angles are explored in this tutorial video. [9:17] A PowerPoint presentation provides definitions of angle terms and a video offers examples for finding the missing angle in a supplementary or...
CK-12 Foundation
Ck 12: Geometry: Angle Pairs
[Free Registration/Login may be required to access all resource tools.] Identify angle pairs as supplementary, complementary or neither.
Math Open Reference
Math Open Reference: Angle Quiz
Students are assessed on different types of angles. Definitions of the angles are included.
BBC
Bbc: Bitesize: Math: Angles
What is an angle? Read about and see examples of the three different types while learning how to use a protractor. Links to an online game and an interactive quiz.
Varsity Tutors
Varsity Tutors: Hotmath: Practice Problems: Points, Lines, Planes, Angles
Twenty-five problems cover the topics of points, lines, planes and angles in various settings. They are given with each step to the solution cleverly revealed one at a time. You can work each step of the problem then click the "View...
Harvard University
University of Harvard: This Is a Stickup!
Students are taught how to make a sundial. The relationship between angles and the sides of a right triangle are explored. Great lesson plan ideas with plenty of background information. The lesson is adapted for grade levels k-6 with...
Mangahigh
Mangahigh: Shape: Opposite Angles
Explore opposite angles by chosing the appropriate angle for the missing degree of measure.
Mangahigh
Mangahigh: A Tangled Web: Angles, From Basic Rules to Circle Theorems
For this game, you must solve tricky angle problems as you help Itzi the robotic spider find a way through a maze of tangled webs, to rescue his family and then get back to his home. Includes a helpful tutorial.
Analyze Math
Analyze Math: Angles in Geometry
Definitions and properties of angles in geometry are explored. Topics discussed are right, acute, and complementary angles. Practice exercises with solutions are included.
University of Georgia
University of Georgia: Inter Math: Interior Angle
This site gives a decription of interior angles along with a visual representation. Be sure to use the links to related terms, everyday examples, challenging problems, more information, and the interactive check point involving interior...
Khan Academy
Khan Academy: Ordering Triangle Sides and Angles
Apply the property that the longest side of a triangle is opposite the largest angle to solve a few problems. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Math Planet
Math Planet: An Introduction to Geometry
Provides an introduction to geometry with definitions of points, lines, planes and angles through the use of examples and a brief video lesson. [1:28]
Other
The Math Learning Center: Pattern Shapes
Students use pattern shapes to explore geometry and fractions, creating their own designs, or filling in outlines. As they work with the shapes students explore geometric relationships, think about angles, investigate symmetry, and...
Math Planet
Math Planet: Pre Algebra: Angles and Parallel Lines
Explains angles and parallel lines through examples and a video lesson.
Math Planet
Math Planet: Pre Algebra: Geometry Fundamental Statements
Provides examples and a video lesson that introduce fundamental statements of geometry.
National Council of Teachers of Mathematics
Nctm: Slam Ball
[Free Registration/Login Required] Angles and symmetry are reviewed in this learning game. Students try to identify high-scoring paths by slamming the ball off the sides of the game board and send it on a path that collects the most tokens.
University of Cambridge
University of Cambridge: Maths and Sports: Olympic Turns
What angles can you see in these photos of Olympic sports? Can you estimate them? This challenging activity is aimed at older primary pupils at Key Stage 2.
Khan Academy
Khan Academy: Angle Types
In this exercise, students practice identifying angle types. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Khan Academy
Khan Academy: Classifying Shapes by Line and Angle Types
In this exercise, students practice classifying shapes by line and angle types. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.