Tag Archives: linear equation

Barbie Bungee Revisited and Better Than Yours Class Lists

This year I’ve taken away a lot of my step-by-step instructions for the Barbie Bungee activity that I’d posted 1.5 years ago. They get no handouts, only some verbal instructions: See that gob of tape up there? That’s leftover tape from previous years where Barbie had taken her jump. It should be at 3 meters up. Well, […]

Posted in Algebra, General | Also tagged , , , , | 5 Responses


Just how fabulous is Desmos. Following up on last Friday’s lesson, I had the kids create “Des-man” on Desmos. I made these very simple sketches, showed them to the kids, and told them the minimum requirements: face and mouth must be parabolas eyes and nose are linear equations Not only was this so great to reinforce slope, y-intercept, and all the coefficients, it also […]

Posted in Algebra | Also tagged , , , , , , , , , , | 8 Responses

Stack ’em High

My algebra kiddos are doing Dan Meyer’s Stacking Cups because Andrew Stadel did the lesson and wrote glowingly about it. But Andrew used only one-size cups, I used three (that’s three!) different sizes. Who’s better now. Just eyeballing I ask students to look at me, look at this 12-oz Styrofoam cup that I’m holding, and estimate how many cups they […]

Posted in Algebra, Problem Solving | Also tagged , , , , , | 5 Responses

Barbie Bungee

Last night: 7:06 – I bought a 1-lb bag of rubber bands at Staples for my Barbie Bungee activity today. 8:00ish – Went to read @ddmeyer ‘s new post about a mullet lesson at Matt Vaudrey ‘s blog. I loved his lesson and immediately followed him on Twitter. 8:43 – Sent him a tweet and got a reply. 9:50 – […]

Posted in Algebra | Also tagged , , , , | 6 Responses