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I created this Key Features of Functions Work Mat to use with my Algebra 2 students during our introductory functions unit. We used it to practice concepts including domain, range, increasing and decreasing intervals, positive and negative intervals, and x- and y-intercepts.

I printed the Key Features of Functions Work Mats on 11 x 17 cardstock and used it with my 11 x 17 dry erase pockets. This larger size made it easier for students to use the work mat in small groups.

If you are looking to save a bit of money, you can also pick up a package of 11 x 17 sheet protectors for a much cheaper price! They won’t be quite as durable, but students can still write and erase with their dry erase markers.

I used these workmats over several days and activities. I tried to make it generic enough that I could use it throughout the year if I wanted to.

The primary way I used these work mats was to give students a description of a graph that they needed to sketch.

For example, I might ask students to “Create a graph that is increasing on the interval (5, ∞) and decreasing on the interval (-∞, 5).”

While first introducing these concepts, I had students sketch them on their dry erase work mats. I walked around from group to group checking their work.

As we got more practice, I would give students a stipulation that their graph must have. After sketching the graph, I asked them to fill in the rest of the table with the descriptions of their graph.

I love this activity because it really helps me get a feel for how well my students are understanding these crucial Algebra 2 concepts. It’s easy to think that your students understand domain and range when they really don’t.

But, I can be pretty confident my students understand a domain and range if they can produce a graph that has a given domain and range.

## Free Download of Key Features of Functions Work Mat

Key Features of Functions Work Mat (PDF) (973 downloads)

Key Features of Functions Work Mat (Editable Publisher File ZIP) (427 downloads)

## More Activities for Teaching Domain and Range

- Set and Interval Notation Dry Erase Template
- Build a Function Activity
- Domain and Range Challenge Activity
- Sketch a Graph Activity
- Inequality and Interval Notation Chart
- Key Features of Functions Work Mat
- Find the Flubs Activity – Set and Interval Notation
- Domain and Range Restrictions Foldable
- Domain and Range Foldables
- Domain and Range Graphic Organizer DIXI ROYD
- Domain and Range Foldables (DIXI ROYD)
- Algebra 2 Domain and Range Foldable
- Drawing Boxes for Domain and Range
- Domain and Range Graphic Organizer
- Interactive Domain and Range Foldable
- DIX ROY Acronym for Domain and Range
- Domain and Range Pictionary Activity
- Notation for Domain and Range Foldable

## More Activities for Teaching Key Features of Functions

- Sketch a Graph Activity
- Key Features of Functions Work Mat
- Roots Solutions Zeros X-Intercepts Posters
- Increasing and Decreasing Intervals Foldable
- Finding the Max or Min of a Graph [TI-84 Instructions]
- Finding Maximums and Minimums Practice Book
- Finding Intercepts with the Calculator Practice Book
- Finding X-intercepts of a Graph [TI-84 Instructions]
- Finding the Y-intercept of a Graph [TI-84 Instructions]
- Graphing and Describing Functions Worksheet
- Describing Characteristics of Graphs Foldable
- Characteristics of Graphs & Functions Foldable