geometry
Beginning of Pythagorean Intro to Number Theory Study-Along
Hello mathematicians, puzzlers, and other curious people! Don\’t forget, this is the first week of our Pythagorean Intro to Number Theory Study-Along! You can still sign up for the free class and get started today on taking a proof-based look at numbers and geometry. Calc You Later!
Cloud in the Sky: Beach Picture Craft Camp 4
Hello mathematicians, puzzlers, and other curious people! This video shows how to use a line, a segment, some circles, their intersections, and some arcs to add a cloud to your beach picture. I could use your feedback on something! I meant for this to be a weeklong project with five videos, but I keep getting…
Sun and Umbrellas: Beach Picture Craft Camp Video 3
Hello mathematicians, puzzlers, and other curious people! In this video, you can see how to add the sun and some umbrellas to your picture. Does anyone see how you could use the umbrellas to prove the same formula we proved with the seashells last time? Let me know if you figure it out! Calc You…
Square Numbers
Hello mathematicians, puzzlers, and other curious people! For those who don\’t already know, when you take a number and multiply it by itself, the product is called a square number because we can use it to draw a square neatly, such as these numbers: Sometimes you will hear people refer to numbers as \”___ squared,\”…
Snowflake
Hello mathematicians, puzzlers, and other curious people! As a test of a new streaming program I just livestreamed the process of making an animated Koch snowflake in GeoGebra. Right now because it took so long I\’m not planning to EVER do that again so here it is in the archives for you to enjoy if…
Problem of the Week 2019-1
These problems are for the class sessions on Friday, January 11th. Try them before class and see what you come up with. You can use any strategy. Elementary Henry wants to make a chicken run at the back of the house. He buys 12 meters of fencing wire. What is the largest area run that…