Anytime you can have food in class it’s a good day (unless you are the custodian sweeping up popcorn. I’m sorry!) I came up with this project probably four years ago. We did the whole pour the water from a cone into a cylinder thing, and it was ok, but I wanted something better. While eating popcorn at the movies, my daughter and I started talking about the cost of the popcorn and the sizes available. Putting those two ideas together, this project was born.
The first year I had students create a cylinder and then figure out how to make a cone with the same base area and height. This was a struggle and I ended up showing them. It does involve a lot of thinking and many would not have gotten there on their own. The following year, I created a hand-drawn example of how to calculate the dimensions of the cone. I now have the information in Google Slides for students to use.
There are great discussions about the slant height becoming the radius of the cone. I do have to show students a visual of this and they are always amazed. Once they see the visual and we discuss how the circumference of the cone piece has to meet up with the base circle, they begin to see how it all fits together.
I’ve included the activity for the first day. I’ve popped trashbags full of popcorn and I’ve popped microwave popcorn. If you can get your concession stand to open up their popcorn machine then you have it made.
Popcorn Container Activity
As a follow-up activity, I decided to have students calculate the cost and the amount for which they could sell their popcorn. This allows them to make some decisions about which container would be best. Many of them tell me that it doesn’t matter which one is the best deal because the cone of popcorn would be inconvenient. 🙂
Popcorn Surface Area & Volume Follow-up activity
Choose Your Own Adventure was such a success in Algebra that we wanted to try it in Geometry. This served as our unit 7 assessment. We followed the same process that we did here but I did update the process so students could plan electronically using this planning form. I also had students create this in New Forms so the process is slightly different than my original post.
The biggest difference between old Forms and new Forms is inserting a page compared to new section.
We also used Google Drawing so students could create their geometry problems using tangents, secants, arcs & chords. Many students had never used Google Drawing and they were very excited how nice their images looked.
Students had to get 3 peer reviews, which meant a student worked through their adventure, correct and incorrect answers, then gave feedback on improvements. They used this document to guide them through the peer reviews. The result SHOULD have been a product that met all of the requirements. Some students don’t peer edit as well as other but they learned quickly that being NICE doesn’t help you improve.
Here are a few of my favorite projects. I told them I wouldn’t publish them unless they were correct. 🙂
Journey to Pasta
First Day of School
Making it to the Movies
Categories: Chromebook, Geometry, Google Drawing, Google Forms, performance task, technology
Tags: #CYOA, #MTBoS, edtech, Geometry, Google Drawing, Google Forms
I’m sitting here watching my Algebra 1 students take the EOC, hoping that I’ve prepared them for the questions they will encounter on the test. I don’t like that we can’t see the questions to know if we have taught them the right stuff or asked the questions the right way.
One thing I do to get them ready is to have them practice graphing electronically. I created performance event type questions in Google Slides. They practice labeling each axis, dragging the dots to the grid and using the line tool to draw a line. Hopefully our practice will pay off!
I know students want to do well and teachers want to prepare them well. It’s more challenging when you have no idea what the questions will be. Good luck Algebra 1 troopers!
I’ve shared two of my performance events below. They are set to view only so make a copy. If you use it and find them helpful, please let me know.