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...
Curated OER
Quadratic Equation Calculator
In this Algebra II worksheet, 11th graders use an online quadratic equation solver to find the zeros of a quadratic. The one page interactive worksheet provides one worked example and the equation solver.