Sophia Learning
Sophia: Planar Objects Have Only Two Dimensions
Explore why objects drawn on a plane are two dimensional in this video tutorial. [4:57] Take a quiz to assess learning.
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.
Rice University
Rice University: Cynthia Lanius: History of Geometry
Different cultures' contributions to Geometry are discussed.
ClassFlow
Class Flow: Geometry Vocabulary
[Free Registration/Login Required] This flipchart introduces and reviews the basic geometric terms associated with two-dimensional shapes.
Wolfram Research
Wolfram Math World: Ray
A ray is defined and discussed here. A picture is provided to aide with the definition and key terms are linked.
The Math League
The Math League: Rays
This website gives a very brief explanation and example of rays.
Free Math Help
Free Math Help: Geometry Vocabulary
The lesson investigates vocabulary used in Geometry. Definitions and examples are included.
Ministry of Education and Employment of Spain
Red Escolar: La Tradicion Kolam
In Spanish. Drawing the Kolam figures is an important part of the Tamil Nadu culture in southeastern India. But with their orderly and often highly symmetrical designs, which frequently group into families, Kolams are also expressive of...
Math Is Fun
Math Is Fun: Symbols in Geometry
The resource investigates common symbols used in geometry. Examples and definitions are included.
Other
Eduteka: Matematica Interactiva
Topics covered in this site are: concepts of numbers, geometry, algebra and statistics. This site has lesson plans, interactive activities and discussions.
Ministry of Education and Employment of Spain
Red Escolar: Un Triangulo Sorprendente
In Spanish. Different activities which involve the following concepts: right triangles, perpendicular lines, classification of triangles, area of a square and Pythagorean theorem.
Ministry of Education and Employment of Spain
Red Escolar: Intersecciones
In Spanish. This math game is for two players. The goal is to join the green points on the side of the square with a straight line and get the highest number of intersections between the drawn lines.
ClassFlow
Class Flow: Blast Off With Geometry
[Free Registration/Login Required] Learn about polygons, angles, parallel, intersecting and perpendicular lines as you journey into space. Included is an activote quiz.
ClassFlow
Class Flow: Geometry Vocabulary
[Free Registration/Login Required] This flipchart presents the vocabulary of geometry. There are numerous examples and practice opportunities to help demonstrate the concept.
Quia
Quia: Spanish 2 Final Exam Review 2003
You can assess your knowledge of the various parts of angles and lines at this web site. You respond to a series of questions. A running total is visible showing the number of correct responses you have as you work your way through the...