9-12
Use this tool to explore how the Simson line of a triangle is related to the orthocenter.
3-5, 6-8, 9-12
Use this interactive tool to create dynamic drawings on isometric dot paper.
6-8, 9-12
Use this
activity to practice how to enter a set of data, plot the data on a coordinate grid, and determine the equation for a line of best fit.
3-5, 6-8, 9-12
Use this activity to practice solving systems of equations. Use this tool to check students' answers.
6-8, 9-12
Use this applet to investigate how changes in the scale factor influence
the ratio of perimeters and the ratio of areas between two figures.
9-12
This applet gives a proof of completing the square "without words" using geometry.
6-8, 9-12
Become comfortable with using both radians and degrees.
9-12
This applet allows for the discovery of the incenter and incircle of a triangle.
9-12
This interactive demonstrates how to bisect an angle.
9-12
This interactive allows users to investigate three types of
quadrilaterals; ones with: perpendicular bisectors, congruent
perpendicular bisectors, and congruent bisectors.