Barney Math

This is a great step-by-step booklet to help derive all the values on the unit circle. Instead of just teaching students to memorize the values, you can show them where they all come from and teach them to derive the unit circle themselves if needed. Print the PDF as a booklet and it can be glued into a interactive notebook with other foldables.

This is a nice discovery activity to discover the number of radians in a circle. Students will use pipe cleaners to measure a radian and discover that there are 2pi radians in a full circle. You can then teach them the ratio to convert radians to degrees.

This is a fun "poof" book with steps for finding rational roots of a polynomial. It uses synthetic division to check roots (rather than the remainder theorem). I don't have my own instructions for folding it, but you can Google "how to fold a poof book" and you will find instructions. This is a great resource for Algebra 2 and Pre-calculus.

This is a nice foldable showing the 6 trig functions. It uses SOH CAH TOA for kids to remember Sin, Cos, and Tan. Cut the corners from the top so there are no flaps on the top, then cut each of the 6 flaps to reveal the details of each function. When printing, select "ACTUAL SIZE" NOT "FIT" so lines will line up.

This challenge has students use the double angle identities and the power reducing identities to solve a riddle. Instructions are in the file.

This is a very simple foldable for students to fill out. It has sections for converting degrees, minutes and seconds, arc length, converting decimals degrees, and converting radians to degrees.