9-12
This interactive allows users to investigate three types of
quadrilaterals; ones with: perpendicular bisectors, congruent
perpendicular bisectors, and congruent bisectors.
3-5, 6-8
When the nine justices of the Supreme Court meet, they greet one another
with a handshake to show harmony of purpose, even though their views
may differ. How many handshakes occur? In general, how many handshakes
occur when there are n people?
Pre-K-2, 3-5
Become confident in facts up to 12 x 12 using visual models that stress the conceptual
aspects of multiplication.
9-12
Explore linear regression and residuals using this Geogebra interactive.
6-8, 9-12
Explore relationships between inputs and outputs by manipulating interactive double number lines.
This interactive is optimized for your desktop and tablet.
9-12
This applet allows for the construction and exploration of the Simson Line.
6-8
Explore when an isosceles triangle obtains its maximum area.
9-12
Where should a soccer player be placed so that she has the best chance of making a goal?
9-12
Construct and explore of a circumcircle.
9-12
Use this tool to investigate what happens when point P is moved to various points within, on, and outside the circle. What, if any, relationships can you identify among the segments and radius?
