## Function vs Not a Function Card Sort Activity

This function vs not a function card sort activity is the perfect way to assess whether or not students can apply the definition of a function to determine whether a relation is or is not a function. This card sort activity provides students practice classifying graphs, tables (both horizontal and vertical tables), ordered pairs, and …

## Discovering the Vertical Line Test

As we are working through my favorite unit of the year, relations and functions, I’m loving the opportunity to pull out my shower curtain coordinate plane.   I created my coordinate plane using electric tape, duct tape, and a shower curtain from Dollar Tree. It has come in handy for so many different activities! A …

## Function vs Not a Function Puzzle Activity

I created this function vs not a function puzzle to help my students practice determining if a relation is a function or not a function.  I also wanted my activity to perform double duty.  I wanted students to be able to use the exact same activity to form relations that were functions and that were …

## Function Auction Activity

One of my favorite activities for introducing the concept of a function in Algebra 1 is to host a Function Auction. The first year I did this, I threw the activity together at the last minute. I grabbed a random function/not a function worksheet off of the Internet and stapled some colored paper on a …

## Justifying Function or Not a Function Notes

I created this justifying function or not a function interactive notebook page to help model for my students how to write proper justification sentences. I always get so frustrated when students will say that something is a function or not a function without any explanation. As we’ve been reviewing for the EOI these past few …

## Relations, Functions, and Dating Advice

I guess I shouldn’t be surprised when my students give me dating advice.  After all, I gave them some dating advice a few weeks ago, and they must be just returning the favor.  If you want to know what your students really think of you, let them write you an online dating profile.  But, more …