Skip to main content

Domain & Range Matching

Domain & Range...you would think that I was talking in a foreign language, especially when dealing with piecewise functions. This is not a new concept either - most of my students are in the 11th & 12th grade. 

To help with more practice, I created a Desmos Activity using a domain/range matching that I found online. 



The students were not happy with the layout of the activity. I had 24 cards to match...I do not suggest using that many cards; it was way too much. Students were having trouble finding matches because cards were covering each other. Also, when the students would move the cards, they would accidentally match with wrong cards. It was a disaster! I think within 30 minutes, I still had students searching for their first pair. UGH. :(

Even though the students would have probably liked to have paper copies of the activity, I love using Desmos because I can easily monitor student progress. 




Here is the activity that I used today just in case you want to give it a try. You could make a copy and delete cards until you have about 12 matches instead of 24.  

I have already started creating a new Desmos activity that I will update here when I am finished. I think I will add in another match - the piecewise equation. (I'll just make less this time!!) 

Update: Here is the NEW Desmos Activity

~RJ 






Comments

Popular posts from this blog

Exponential Growth & Decay Scavenger Hunt

Scavenger Hunts are always fun (and easy to grade). This particular one is all about applications of exponential growth & decay. My students seem to understand this topic really well, but I still wanted to provide more practice.  When I did this hunt originally, I created the cards with the answer on the front and the question on the back. Once I figured out how to copy and make it work, it was great because I could use the cards over and over again. However, they started looking old, and I lost some of the cards. So t his year, I placed the answer and question on the front. It made it so much easier to copy!  If you would like to try this in your class, here is a copy ! I included the solutions as well.  UPDATE: I created this activity and transformed into a remote version.  Remote Version: SE Scavenger Hunt               TE Scavenger Hunt ~RJ

Polynomial Picture Project

Projects allow the students to show off their creativity and math skills! This one requires students to use Desmos to help create a polynomial function that fits a picture of their choice. As you can see with some of the projects below - the ideas vary immensely. Some of the students are very clever and others just use the McDonald's sign. However, each year, the students amaze us at what they find.  Instead of using their calculators - here's how Desmos will find the regression line. In my video, I just did a simple quadratic, but our students have to create a regression equation that requires at least 3 relative extrema.  Typically, we show the students how to use the Desmos regression option before sharing the project. Some students have trouble fitting the graphs because they choose too many points, and others are upset that it doesn't fit perfectly! We reassure our students that this is the best fit - not a perfect fit.  Once students have the reg...

Logarithm & Exponential Concentration Game

Lecture is inevitable, but I like to divide up that time with small, hopefully fun activities. We all need a break from time to time, including ME!!!  I found this activity here , and instantly loved it. After explaining how to rewrite logarithms and exponentials, this game provided students with the perfect practice.  Just like the concentration game, students place all cards face down and then flip two cards over. They look for an exponential and logarithmic pair. If they find a match, YAY! If not, they have to turn them back over and lose their turn.   This is a fast activity; it took my kids about 15 minutes. Even though it was short, I think the students enjoyed not having to listen to me for the entire class! I'm okay with that; I enjoyed taking a break from talking!  :)  I could have cut out the activity that I found online, but I am a little OCD when it comes to fonts. So, I created a new version using the same problems. Here it is: Concentr...