85 – Guess my Equation

Guess my equation : Trig edition. Give me a cosine equation for this curve. Give me a sine equation. Give…

2 years ago

84 – Exploding Dots

Day 1 of Advanced Computer Programming. James Tanton’s Exploding Dots. Fantastic lead in to binary numbers and it also does a…

2 years ago

83 – Marbleslides – Trig Graphs

At the beginning of the activity: “Oh yay, I love these.” “Yes, marble slides!” “I like these things.” And here’s…

2 years ago

23 – Sum and Product of Roots

Here’s a PreCalc H student’s work while trying to prove (show) the product and sum of the roots formula. Icky algebra, but…

2 years ago

17 – Loop-de-loop in Python

Anna Weltman and Dan Meyer are hosting a mathematical art contest based around loop-de-loops. We worked on paper first (CMONMATTTHINK),…

2 years ago

Week 22 – Stats

Needed some 1D statistics to calculate population standard deviation from mean (by hand). Values had a high variance, 7 to…

3 years ago