CK-12 Foundation
Tangent Graphs: Slope and Angle
Learning about tangents doesn't have to be a slippery slope. Pupils drag a point around a unit circle to see how angle affects the slope of a line. They individually answer a set of challenge questions to come to the conclusion that...
Curated OER
Slope and Intercept of a Line
In this online math activity, students determine the slop and the intercept of a line by solving a variety of equations. This excellent resource allows the students to check their answers, and to get "hints" should they run into...