Math Birds Space-Pigeonholes Imagined The Pigeonhole Principle merged with the contemplation of black holes today. I envisioned Fractal Kitty at the whiteboard with this one, but went without the kitty today – enjoy.
Math Birds “Two-Body” Problem: Barycenter vs Waxwing After watching the neighborhood waxwings consume their fill of berries prior to moving on, I pondered a different kind of a two-body problem:
coding Parabolic Beams I love thinking of parabolas as being formed with a directrix and focus. Coming from a background in trajectory analysis, I find the abstract relationships of the curve to the point and line beautiful. When a light shines through the focus of a parabolic mirror, the light reflected is orthogonal to
GIF The Point? Dimensions “The Point of Evolution” started as a Mathober doodle and led to this GIF. Dimensions are fun – what do you see? what do you notice? Side Note: I talk about dimensions when covering combining like terms. One analogy – A 3D banana can’t combine with a 2D banana (or whatever noun seems to go […]
52 Weeks of Math Activities Week 49: Pendulum Labs Pendulums are wonderful physics toys that are great for exploring periodic functions. For week 49, I encourage learners to get out some string, weights, and stop watches. Here are some ideas for playing with math and pendulums: * Start with a string and a weight to observe basic pendulum motion. Nuts,
52 Weeks of Math Activities Week 44: Conics, Orbits, and Projectile Motion You don’t have to be in high school math to play with conics, orbits, and projectile motion. This week (or month), learners can play with projectile motion, orbits, and conic sections with the activities below: 1.) Slicing cones * Learners can mold cones with clay and slice to see the
52 Weeks of Math Activities Week 40: Tensegrities In math, we find balance and equilibrium. We balance equations. We keep balance by using properties of identity (multiply by 1 or add zero), Properties of Equality (mirroring operations), and by using the many other ways to manipulate and play with structures in math. This week’s math is about
Makings Makings: Wave Pendulum I have decided to start a new category on this blog for my “makings” – items and projects that I have designed/created for classroom use, art, fiber musings, or just because. Today I decided to create an easy to store, easy to demonstrate, easy to build wave pendulum. I’ve built these in STEM classe
52 Weeks of Math Activities Week 12: Galileo and Gravity This week, we are going to take a look at applied math. Learners will be given a ramp (this can be a ruler), a ball that fits on the ramp, a measurement device (ruler), and a timer. With these instruments, learners can investigate the relationship between distance and time as