## Trigonometry Jokes and Puns

This collection of trigonometry jokes and puns will help bring a spark of fun and humor to your trig lessons. Get ready to make your students laugh! (Or groan…) As a high school math teacher, I have been collecting mathematical jokes and math puns for years to add to my math lessons. I want to …

## Right Triangle Trig Formula Sheet

Get the help you or your students need remembering all of the formulas needed for right triangle trigonometry problems with this handy right triangle trig formula sheet.

## Paper Plate Angle Spinners for Trigonometry

Help your trigonometry students visualize graphing angles in standard position on the coordinate plane as well as coterminal angles and reference angles with these fun paper plate angle spinners. What is a Paper Plate Angle Spinner? When I first started teaching trigonometry, I would have my students build “angle spinners” in their interactive notebooks using …

## Trig Reference Angles Activity: Odd One Out

I created a new reference angles activity using the odd one out structure to give my trigonometry and precalculus students practice identifying the reference angle of a given angle in degrees. Reference Angles Activity Instructions Determine which angle of the four given angles has a different reference angle than the other 3 angles. In other …

## Converting Degrees and Radians Tarsia Puzzle

Provide your precalculus students with plenty of practice converting between angle measures in degrees and radians with this degrees and radians tarsia matching puzzle. I was on a mission this past school year to work on adding more creative practice activities to my precalculus course. When we started our unit on angles, I decided that …

## Evaluating Trig Functions Tarsia Puzzle

Give your students plenty of practice evaluating trig functions with this fun tarsia puzzle. In this activity, students must use either their knowledge of special right triangles or the unit circle in order to evaluate each function and match the corresponding pieces to build a triangle. For years, I tried to use a similar evaluating …

## ASTC Trig Quadrant Poster (CAST Diagram)

Looking for a visual to help your students remember the signs of the various trig functions in each quadrant? I created this set of ASTC trig posters to hang in my classroom for my pre-calculus students to reference. In some countries, this is known as a CAST diagram. That name has always bothered me though …

## 7 Engaging Unit Circle Activities

Looking for the perfect activity to help your students practice the unit circle? Check out these 7 engaging unit circle activities I use with my pre-calculus students during our trigonometry unit. Activities to Learn the Unit Circle Deriving the Unit Circle Foldable Several years ago, I created this deriving the unit circle foldable for my …

## 27 Hands-On Trigonometry Activities

Looking for hands-on trigonometry activities? Here’s a collection of 27 fun and engaging trig activities that I have created over the past decade while teaching trigonometry and pre-calculus to high school math students. What is a Radian? Hands-On Activity I created this hand-on exploration for my trigonometry students to explore the question “What is a …

## 5 Free Printable Trigonometry Posters

Teaching trig? Check out these 5 free printable trigonometry posters that I have made for my pre-calculus classroom over the years. They are each available as a downloadable PDF file. Unit Circle Display I created these unit circle magnets to use with my dry erase magnetic unit circle from EAI Education. I plan to use …

## Fill in the Blank Unit Circle Chart

I created this fill-in-the-blank unit circle chart for my pre-calculus classes to use as they practice constructing the unit circle from memory. Students are given a blank unit circle with the following instructions: I like to print smaller versions of this blank unit circle chart for my students to practice on ahead of our unit …

## Parent Graphs of Trig Functions Clothespin Matching Activity

This parent graphs of trig functions clothespin matching activity has been in the making for multiple years. Several years ago, I discovered a Parent Graphs of Trig Functions Worksheet from Robyn Wolfe of Carlisle Schools. Overview of Activity I used the worksheet with great success in my pre-calculus class, and I remember writing a note …

## Unit Circle Bingo Game

I decided to create a Unit Circle Bingo Game to give my Pre-Calculus students some much-needed practice with evaluating trig functions using the unit circle. Technically, this is more of a game of connect 4 than bingo, but bingo just sounds more fun. So, Unit Circle Bingo it is! Bingo is one of my go-to …

I created this fun quadrants unlocked activity to give my pre-calculus students some much needed practice determining the signs of trig functions in various quadrants. In my many years of teaching trigonometry and pre-calculus, one of the topics that my students have struggled the most with is using facts about one trig function to determine …

Several summers ago, I created a set of printable radian sectors to illustrate what different amounts of radians looked like when graphed in standard form. I had a brilliant idea to make some sort of auction activity where students competed to see which group could create the most complete circles. At least I think that …

## Trigonometry Calculator Skills Pop Quiz

Several years ago, I created this trigonometry calculator skills pop quiz to give to my Pre-Calculus students before we learn to use our calculators for evaluating trig functions. Students tend to think that these calculator-based problems are super easy and that they don’t need to be taught how to type trig functions into their calculator. …

## The Great Quadrant Guessing Game

I created The Great Quadrant Guessing Game several years ago to give my Pre-Calculus students some extra practice determining which quadrant of the coordinate plane was represented by two trigonometric facts. The Great Quadrant Guessing Game For example, in which quadrant is the sine of an angle positive while the cosine of the same angle …

## Odd One Out Coterminal Angles Activity

I created this odd one out activity to give my pre-calculus students extra practice identifying coterminal angles. In this activity, students were placed in groups of 4. Each group was given a set of four angle cards. Three of the angles are coterminal angles (meaning they share the same terminal side when sketched in standard …

## One or Negative One Trig Identities Worksheet

I really like the simplicity of this One or Negative One? Trig Identities Task that I found in the 8th Edition of Demana and Waits’ Pre-Calculus Textbook (Section 5.1). That’s why I decided to turn it into a worksheet! Trig identities are one of my favorite topics to teach in Pre-Calculus. To me, they are …

## SOH CAH TOA Notes

I created these SOH CAH TOA notes for my Pre-Calculus students a few years ago to review how to find the trigonometric functions of an angle, given a triangle. First, we reviewed the different parts of a right triangle. I have also created a poster of the parts of a right triangle that might be …

## Deriving the Unit Circle Foldable

Several years ago, I created this deriving the unit circle foldable for my trigonometry students to work through and glue in their interactive notebooks. I tweeted about the foldable, but the file never made it to my blog. Today, I am remedying that! We started with a review of our special right triangles. First, we …

## Trigonometry Puzzle

A couple of years ago, I created this trigonometry puzzle to keep my students busy when we unexpectedly finished our lesson with more time to spare than I had planned. This trigonometry puzzle is really the Twisted Wires Puzzle by Cliff Pickover in disguise. To keep my students from googling the puzzle (as they have …

## Radian Arts and Crafts Activity

This radian arts and crafts activity is designed to help students conceptually understand what a radian is. As a bonus, it creates a beautiful, mathematical art display for your classroom. This is one of my most popular tweets of all time. People come to my blog searching for it frequently, but until today it has …

## Unit Circle Magnets

I created these unit circle magnets to use with my dry erase magnetic unit circle from EAI Education. I plan to use the magnets both as a way to have a large unit circle on the wall of my classroom and for various activities throughout the year. When I share pictures of my magnetic unit …