ClassFlow
Class Flow: Equations
[Free Registration/Login Required] Students interpret algebraic equations and inequalities geometrically and describe geometric relationships algebraically.
Free Math Help
Free Math Help: Completing the Square in Circle Equations
This discussion examines how to complete the square in circle equations. Students learn about the math concept through definitions and examples with detailed solutions.
Annenberg Foundation
Annenberg Learner: Math in Daily Life: Home Decorating
This exhibit is designed to show students that geometry really does apply to the real world. By taking viewers through a home decoration project, students learn how to calculate area of a rectangle and circle.
Rice University
Rice University: Cynthia Lanius: Circles Around Pythagoras
This site from the Rice University includes a fill-in-the-blank lesson on the definition of circles, as Pythagoras described.
Ducksters
Ducksters: Kids Math: Circle Geometry
Circle Geometry math for kids contains information for students to learn about terms radius, diameter, circumference, chord, and pi.
SMART Technologies
Smart: Shape Attributes
The introductory pages introduce the shapes and their attributes: triangle, rectangle, square, rhombus, circle, and oval. The additional pages allow students to practice shape recognition, tracing shapes, and drawing shapes.
Expansion Learning
Expansion Learning: Math Activity: What Shape Is This? (Part One)
Activity provides students the practice they need to master the skill of subtracting by 6. Immediate feedback is given.
Expansion Learning
Expansion Learning: Math Activity: Select the Shape (Part One)
Activity provides students the practice they need to master the skill of identifying shapes. Immediate feedback is given.
Expansion Learning
Expansion Learning: Math Activity: Know Your Shapes (Part One)
Activity provides students the practice they need to master the skill of identifying shapes. Immediate feedback is given.
Math Open Reference
Math Open Reference: Major and Minor Arcs
Learn about major and minor arcs with this helpful reference tool. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Calculator Soup
Calculator Soup: Annulus Calculator
This online calculator will find the area, circumference, and radii of an annulus. With any 2 known variables, you can calculate the other 5 unknowns.
Calculator Soup
Calculator Soup: Circle Calculator
Use this circle calculator to find the area, circumference, radius, or diameter of a circle. Given any one variable A, C, r or d of a circle you can calculate the other three unknowns.
Calculator Soup
Calculator Soup: Stadium Calculator
Use this calculator to calculate physical values related to the shape of a stadium.
Math Open Reference
Math Open Reference: Intercepted Arc
Learn about the intercepted arc with this handy reference guide. Provides a detailed definition, example, and an interactive activity that enhances further explanation. Includes links to related topics.
Math Open Reference
Math Open Reference: Central Angle Theorem
Learn about the Central Angle Theorem with this handy reference guide. Provides a detailed definition and an interactive activity that enhances further explanation. Includes links to related topics.
Math Aids
Math Aids: Geometry
Great resource to practice and strengthen math skills pertaining to Geometry. Math worksheets are printable, may be customized, and include answer keys.