Science Buddies
Science Buddies: Tiling With Spidrons
If art and math are both passions of yours, this project is meant for you! Spidrons are geometric forms made from alternating sequences of equilateral and isosceles (30 degrees, 30 degrees, 120 degrees) triangles. Spidrons were...
Science Buddies
Science Buddies: Circumscribing a Circle About a Triangle
Here is a project that combines Computer Science and Mathematics. Prove a method for circumscribing a circle about a triangle (as shown). You'll also learn how to create an interactive diagram to illustrate your proof, using an applet...
Science Buddies
Science Buddies: Taking Off on a Tangent
This is an interesting geometry project that goes back to the time of Archimedes, the famous Greek mathematician. You can combine this mathematical project with computer science and take this ancient problem into the twenty-first century...
Texas A&M University
Wtamu Virtual Math Lab: Beginning Algebra
This tutorial for students new to algebra provides explanations, definitions, examples, and practice problems. The practice tests cover topics such as real numbers, fractions, equations, graphing, and exponents.
Beacon Learning Center
Beacon Learning Center: Anglemania!
Students explore four types of angles in this interactive web lesson.
Beacon Learning Center
Beacon Learning Center: Triangles Side by Side
This comprehensive web lesson describes how to classify triangles by their angle and side measurements. It provides real-world examples and exercises for students to practice the skill.
University of Texas
Inside Mathematics: Don's Shapes [Pdf]
This task challenges a student to demonstrate understanding of the attributes of two-dimensional shapes.
University of Texas
Inside Mathematics: Half and Half [Pdf]
This task challenges a student to demonstrate understanding of one-half in a geometric context.
University of Texas
Inside Mathematics: Which Shape [Pdf]
This task challenges a student to use knowledge of geometrical attributes to identify and describe shapes.
University of Texas
Inside Mathematics: Quilt Making [Pdf]
This task challenges a student to demonstrate understanding of the concept of two dimensional shapes and their properties.
University of Texas
Inside Mathematics: Symmetical Patterns [Pdf]
This task challenges a student to demonstrate understanding on the concept of symmetry.
University of Texas
Inside Mathematics: Cubes [Pdf]
This task challenges a student to use knowledge of concepts of volume and its attributes to solve problems with rectangular prisms.
University of Texas
Inside Mathematics: Sorting Shapes [Pdf]
This task challenges a students knowledge of 2-dimensional geometrical shapes to sort shapes and to design a shape that has a given set of attributes.
University of Texas
Inside Mathematics: Building Blocks [Pdf]
This task challenges students to demonstrate understanding of area, surface area and volume.
Society for Science and the Public
Science News for Students: Cool Jobs: Motion by the Numbers
What do car crash testers, video game creators, and scientists who study athletic performance have in common? All use geometry in their cool jobs. Check it out.
PBS
Pbs Mathline: Mirror, Mirror Lesson Plan [Pdf]
Determine which regular polygons tessellate by using mirrors. Printable lesson.
PBS
Pbs Mathline: Bubble Mania Lesson Plan [Pdf]
Determine the area, diameter, and circumerfence of a bubble residue by creating a soap solution and blowing bubbles.
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...
Trinity College Dublin
Trinity College: Gottfried Wilhelm Leibnitz (1646 1716)
This site contains events of the life of Gottfried Leibnitz. It is presented in a timeline form.
Harvard University
Harvard Smithsonian: Everyday Classroom Tools
The focus of this series of lessons is to engage students in an exploration of the world around them. The emphasis is on inquiry as students learn about the earth, sun, light, shapes and more.
University of Saskatchewan (Canada)
University of Saskatchewan: Emr: Exercises in Math Readiness
The University of Saskatchewan offers this resource for the review of mathematical concepts that students need to enter university level math courses. Topics include mental arithmetic, algebra, geometry, trigonometry, exponential and...
Math Open Reference
Math Open Reference: Plane Geometry: Transformations
Explore transformations of a polygon that include: 1) translation 2) rotation 3) reflection and 4) dilation.
Queen's Printer for Ontario
E workshop.on.ca: Effective Instr in Math, K 3: Geometry & Spatial Sense [Pdf]
This 455-page guide outlines and illustrates effective strategies for teaching geometry and related spatial concepts to children in kindergarten through grade 3.
Other
The Mathematical Elements of Euclid
An extensive discussion of the Elements, which contains all the geometrical knowledge available in the Hellenistic period.