teachers learning math together
Today we looked at a problem involving rebounding balls on a billiard table.
The rules of our problem:
We started this meeting with a warm-up question: What is something you are good at that you could teach someone else? It turned out we were a very talented group with skills ranging from kayaking to mountain climbing and from making enchiladas to reading and writing Egyptian hieroglyphs.
We took some time on our own to explore some demonstrations of the new music and sound features of Mathigon Polypad. (To learn more, go to Using Polypad: Music – Mathigon.)
Continue reading “Music and Polypad”In this meeting, Amy introduced the story table, which is a teaching tool for solving algebraic equations. Story tables allow us to use guess and check and then analyze patterns in the results, in order to find values of x that make equations true.
To get us started, Amy shared the following algebraic equation:
3x - 2 = 10
And asked us to tell the story of x. To find a solution in this story, Amy asked us for the moment not use other ways of solving equations.
Sarah and Eric have been teaching themselves how to code using Javascript, CSS, and HTML. The What Comes Next? game is the result of more than a year’s work. We are not fast coders! We used this meeting to share our game and to see if teachers might use it with their students.
To play the game: What Comes Next?
Continue reading “What Comes Next?”For the last CAMI meeting before the 2022 summer break, we explored and created hanger diagrams. The session began with a notice and wonder of this hanger.
Cindy Aossey and Dee Crescitelli started the session with a notice and wonder about two graphs.
Cindy started the meeting by asking participants to draw rectangles in Jamboard using the graph paper background.
Tip: To make a straight line in Jamboard, hold down the shift key!
The session started with an example of Egyptian representations of whole numbers.
In our first meeting of fall 2021, Sarah and Amy led through the group through an exploration of the ways of cutting a shape into pieces.
Continue reading “Representing Fractions”For the May afternoon CAMI meeting, we considered the case of the tethered goat. We observed goats tethered to fences and barns of various shapes and sizes and considered the grazing area of the goats under various conditions.
Continue reading “Stubborn as a Goat”
