Illustrative Mathematics
The Geometry of Letters
Use the alphabet as a tool for teaching your class about geometric figures. Break apart capital letters into line segments and arcs. Classify angles as right, acute, or obtuse. Identify parallel and perpendicular lines. An excellent...
Curated OER
Shapes and Angles
Are your geometry whizzes learning about angles and shapes? This online worksheet gives 10 multiple choice questions based on images and word problems. Concepts include deducting angle degree, classifying shapes, and identifying angle...
Curated OER
Tessellations
Students learn and review basic geometric terms, definitions, and theory, including regular polygons, lines, angles, points, etc. They make a tessellating stamp and create a repeating work of art.
Curated OER
Nature of Geometry
Fourth graders capture geometry in nature. In this nature of geometry lesson, 4th graders use digital cameras to find real life examples of geometric terms. Students create a presentation using the digital pictures and terms with...
Curated OER
Geometrical Terms
In this geometrical term worksheet, students read clues to geometry terms and write the answer beside each clue. A list of definitions is listed at the bottom of the page. This one-page worksheet contains 20 clues to definitions.
Curated OER
Geo Jammin' By DeSign - Day 2, Lesson 8: Can You Please Give Me Directions?
Students participate in a guided reading experience by following directions to cut out tangrams. They listen to the directions and cut as the reading progresses.
Curated OER
Pass It On
Fifth graders participate in a class activity that helps them learn some geometric terms along with their definitions. They describe relationships between two and three-dimensional shapes and analyze attributes and properties of...
Curated OER
Sketchpad
Learners investigate the use of Geometer's Sketchpad when studying geometric terms. They use the visualization tools to complete worksheet and design a picture to print and share with the class.
Curated OER
Geo Jammin' By DeSign - Day 1, Lesson 3: Moo-vin
Second graders practice new geometry vocabulary by putting the words to the tune of "Hokey Pokey." students use the lyrics as a guided reading experience.
Curated OER
Geo Jammin' By DeSign - Day 1, Lesson 5: Do You Hear What I Hear?
Learners listen to a poem that includes directions to use geometric figures to complete a creative task.
Scholastic
Scholastic: Max's Math Adventures: Max's Fantastical Zoo
Use this rhyming description of Max's Fantastical Zoo to make some amazing animals from geometric shapes. There is a teacher's guide for easy lesson planning.
University of Saskatchewan (Canada)
University of Saskatchewan: Geometry
The University of Saskatchewan's Department of Mathematics and Statistics provides high school students with online tutorials and exercises on what they deem some of the most important topics in geometry: Triangles, and Circles and Other...
Math Slice
Math Slice: Geometry Slice Special Test
A succinct test for assessing geometry concepts. Assessment is scored online giving immediate feedback. An excellent assessment tool.
Khan Academy
Khan Academy: Geometric Definitions
Check your understanding of the definitions of geometry terms in this exercise. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
CK-12 Foundation
Ck 12: Basic Geometric Definitions: Collinear Constellations
[Free Registration/Login Required] Students explore basic geometric definitions by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...
CK-12 Foundation
Ck 12: Volume of Pyramids: Collinear Constellations
[Free Registration/Login Required] Students explore basic geometric definitions by navigating through the interactive learning module and then answering questions that go along with the module. Students can also learn more about the...
Other
Maths Net Interactive: Interactive Geometry: A Glossary
Click on the appropriate word to view a small graphic depicting the term, or click to the crossword puzzle version of thisinteractive glossary.
![Regents Exam Prep Center: Geometry: Things to Remember [Pdf] Handout](http://content.lessonplanet.com/resources/thumbnails/410151/large/bwluav9tywdpy2symdiwmduymc0yotc3nc12zw9xbmsuanbn.jpg?1589985610 "Regents Exam Prep Center: Geometry: Things to Remember [Pdf] Handout")
Oswego City School District
Regents Exam Prep Center: Geometry: Things to Remember [Pdf]
Use this information sheet to help remember key geometric points for test preparation. This is a .pdf document.
University of St. Andrews (UK)
University of St. Andrews: A History of Pi
From a historical view, the authors give a very descriptive timeline of pi.
Math Slice
Math Slice: Math Match Game
Test your geometry aptitude using this interactive matching game. Match pictures and symbols to the correct definition. Answers are verified immediately. Winners can earn as much as 10,000 dollars and have their name posted for the day.
Other
Nearpod: Points, Lines, Segments & Rays
In this instructional activity, students will identify and draw lines, segments, rays, angles, and points.
Wolfram Research
Wolfram Math World: Coplanar
This MathWorld site gives the conditions for an object to be coplanar and a good definition of this term. Gives links to related pages.
University of Regina (Canada)
University of Regina: Math Central: Lesson: Mr. Z's 5 Minute Game of Geometric Pandemonium
Students make a series of geometric drawings of points, obtuse angles, rays, polygons, and the like. Each child is given one but not allowed to show anyone else. The drawing is then taped to the back of the child in front of them. The...
Math Is Fun
Math Is Fun: Right Angle
This very basic website gives a clear, simple explanation of what a right angle is.