This interactive maths manipulative allows students to explore the connection between the unit circle and trig functions. Students can move a point around the unit circle and see the graph develop in real-time.  Works in both degrees and radians.

You can use this by projecting it on the board or assigning it to students to complete on their own devices. Don't forget to check out the Phet resource bank for the free worksheets that accompany it!

Recommended for : Introduction

This is the worksheet I use to introduce students to the Sine graph for the first time. This discovery-based approach allows students to fully grapple with important concepts and form a deep understanding of the topics at hand. Colour coordinated to support students in their concept development. You can download the PDF version completely free or purchase the editable worksheet in the CM Store.

Recommended for : Introduction

The Desmos graphing calculator is fantastic for introducing trigonometric graph transformations for the first time. Students can see the impact that changing the values of a,b,c have in real-time. 

I like to project this on the board and talk through the impact of changing sinx to 2sinx etc. however if students have their own devices  you could set this as a discovery learning task. As students to figure out what impact a,b,c have in the function asinbx + c .

Recommended for : Trig transformations

Desmos Graphing Calculator 

A great lesson starter. Throw this up on the board and let students debate it out. 

Another good use for this would be to print it out and have it in a folder of resources for students who finish their work early. It is a really nice challenge for high performers.

Recommended for : Lesson Starter / Early Finishers

Tangled Trig Graphs Nrich.org