Skip to main content

Systems of Inequalities: A Desmos Activity

This is one of those activities that had all students engaged from the moment they logged in! 

 Students begin by practicing graphing systems of inequalities and finding points that exist in the feasible region. Then students are asked to create a system with a specific point in the solution. They had fun playing around in Desmos and the ease of use within in website where they could clearly see the effects of changing values in their inequalities to fit the guidelines and expectations of the exercises.

 Once the students were familiar with graphing systems of inequalities and finding solutions, we moved on to finding objects in a photo, this is point where the kiddos had the most fun. First, they graphed inequalities to see which object was isolated in two different photos. Then, they had to find Waldo and isolate him using a system of two inequalities. Finally, they were given a map of the US and asked to isolate North Carolina using three inequalities.

 I teach onlevel Math 3, but this activity could very easily be adjusted to make it more challenging for honors students by giving more guidelines (such as: no horizontal or vertical lines- which my kiddos definitely used).

 Overall, this was a fantastic activity! Feel free to use this with your students!

Desmos Activity!

 ~ssb and rj


Comments

  1. UnknownDecember 13, 2021 at 8:10 AM

    I love this idea! Is the Desmos activity still active? It looks like the link no longer works.

    ReplyDelete
  2. UnknownFebruary 15, 2022 at 9:43 AM

    Desmos says, "Activity not found." Could you please share the link? I would love to use this!

    ReplyDelete
    Replies
    1. girlmathx2March 15, 2022 at 5:29 AM

      I think we fixed the issue! The link should work now. If not, please let us know.

      Delete

Post a Comment

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
Post a Comment
Read more

Modeling Exponential Growth (M&M Activity)

I could present an application problem on the board, have the students plug into their calculator and find the exponential regression equation. However, I think that visualizing the growth is more effective, and allows students to see how fast something like cancer cells can grow. This activity provides a hands on experience with M&Ms while modeling real world concepts.  I found this activity here , but created my own (slightly different) version. I only had enough time for exponential growth, so I eliminated the decay portion.  I really like how students compare the equation that they found to the calculator's regression model. This activity also causes students to discuss each component of the equation, which I think is very important in AFM. Additionally, this brings up a great discussion regarding cancer cells. Do all cancer cells grow exponentially? If time allows, I like for students to do some research (using their phones) to aid with this conversation....
Post a Comment
Read more

Limit Project

Well...we just got back into school after being out for almost 3 weeks because of hurricane Florence. Our school is okay, but there are many people out there suffering from losing so much. :(  I had planned on a project for Calculus before the storm but will have to put that aside until next year! We have just lost too much time. However, I wanted to still share the project with you guys in case you would like to try it or something similar to it.   I like to make projects a unique experience. I hate when all students do the same thing. #1 - students can and WILL copy. #2 - It's boring to grade!  The idea of this project is floating somewhere on the web. I honestly can't remember where I got the idea. But I have altered it over the years to meet the needs of my students. It has gone through many alterations, and I will continue to change things.  So it is not perfect!  The gist - students find a recipe that has at least 5 ingredients. (The recipe ...
Post a Comment
Read more