What effect does changing a parameter have on the graph of a trigonometric function? Pupils use a Desmos applet to explore the general sine graph. They experiment changing different parameters and record the resulting change of the...

If you are looking for a secular approach to teaching about Easter, this may just be the resource for you. Pupils read a paraphrased text depicting the last supper, arrest, and crucifixion of Jesus Christ as told in the Bible,...

Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...

Use a triangle area formula that works when the height is unknown. The eighth installment in a 16-part series on trigonometry revisits the trigonometric triangle area formula that previously was shown to work with the acute triangles....

After reading and discussing a news article from the New York Times regarding gay and lesbian issues of the last thirty years, students engage in several activities to explore current events. They create a timeline, either electronically...

It is entirely fitting and proper that Wilfred Owen’s powerful “Dulce et Decorum Est” is the poem used for an exercise in close reading, discussion, analysis, and argumentative writing. Class members discuss focus questions in pairs,...

The second day of a two-part instructional activity on motion introduces the class to circular motion. Pupils learn how to incorporate a time parameter into the rotational matrix transformations they already know. The 24th installment in...