# 8 Ideas for Teaching Function Notation

For algebra students, learning how to write in function notation is a foundational skill. As they progress through more difficult classes, they may be able to skate by without having mastered the skill, but learning function notation early makes their lives so much easier!

When I first introduce function notation, I don't actually explain to students what is happening.  Instead, I use pictures to substitute into the equations. Read more about it: How I Teach Function Notation

Once students have a good handle on substituting values into functions with pictures and "easy" numbers, I have them copy a few of the examples into their notebooks. Once we have done that, operations with functions are quick and easy! I like to have my students take simple notes like these about adding, subtracting, multiplying, and dividing functions.

After a quick example of each, it's time for an activity!

## 8 Activities for Teaching Function Notation

Function Operations Coloring Worksheet - This worksheet is a fun way for students to practice function operations. The picture doesn't make a pattern, so kids can't "cheat" their way out of the work. It could easily be added to an interactive notebook as well!

Function Operations Sum 'Em Activity - This FREE sum 'em activity is a great way to check out the style of sum 'em activities. It's a fun activity to get your students working together.

Function Operations Cut and Paste Activity - This cut and paste activity is a great way for students to practice and also practice putting negative and positive numbers in order. I've found this really helps students that still have a shaky grasp on negative numbers.

Operations and Compositions of Functions Stations Maze - This fun activity keeps students moving around the room while practicing math. It also includes compositions of functions.

Function Operations Dice - These EDITABLE dice are a fun way for students to create their own practice and keep their hands busy!

Operations with Functions Online Quiz - The top of the webpage is an explanation of combining functions. However, if you scroll all the way to the bottom, there is a 10 question quiz students can take. It's a great way to have students on devices if that's a requirement for you.

Functions Operations and Compositions Maze - This maze is a fun way for students to practice function operations and compositions. They could even work with a partner.

Function Notation Puzzle - This puzzle is an awesome way to get groups of students to work together. I love using puzzles like this as a warm-up on a review day.

I hope you have found an idea that will be perfect for your classes! These are my favorites!