Day 8 - Domain and Range

Before I give my Math 3 students their first test, I have a few more review topics to go over. Today was Domain and Range. I combined ideas from a bunch of talented bloggers, and a worksheet of graphs, and made a card stack activity. (I'm not sure where the graphs came from. When I figure it out I will up-date the post.)

    

I made 14 cards: one side has graphs and the other side has domain and range. I used interval notation for the domain and range because most of my Math 3 students haven't been exposed to it yet. Students spread out the cards on their desk with the domain/range side up, and then they had to flip over one card to look at the graph.

Then they had to find the domain and range of that graph from the 13 cards left.

Once that card was found, they flipped it over on top of the first graph to reveal a new graph. With the new graph they repeat the process: find the domain and range, take the card, flip it over.

The last graph should match the domain and range on the bottom of the stack.

I tried giving my 2nd and 3rd blocks the instructions on the card sort all at once. After I handed out the cards, many still didn't know what to do so I ended up repeating myself. For my 4th block, I handed out the cards first and walked through the set up with them. That seemed to work better.

If you want these cards click here. It is a Word document ... feel free to edit as needed for your classroom.

Almost Friday!

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