How to measure the speed of light in water with a laser pointer, a ruler, and a cup of water. #calculus #maththeworld youtu.be/YSZDfoCYuyk

Application of the Pythagorean Theorem: How far out into the ocean you can see when standing on the shore? How far do two people need to be until they can't see each other because of the curvature of the earth? #mathinreallife #maththeworld youtube.com/watch?v=-J8-9E…

Here is a video that can help you really understand the idea of a mean, and why there are so many different kinds of means in math/stats. youtu.be/V1_4nNm8a6w?si…

We order some astronomically large numbers, and show how scientists actually estimate things like the number of stars in the universe, and number of words ever uttered in the history of mankind. #maththeworld youtu.be/RkjgS_ppjg0?si…

One solution to the mathematically correct angle to toss a ball to make it easiest to catch. #mathinreallife #maththeworld youtu.be/g4H-EMFVz30?si…

This is the funniest math story that I have with my kids. I actually got them to do math to see how long it would take them to burn their math book at the end of the school year! (my 10 year old didn't like math then). #mathinreallife #maththeworld youtu.be/sbANp5M5zPs

My son swallowed a nail! We figure out how long it is based off of an x-ray image. #maththeworld #mathinreallife #math youtu.be/TILgswo2y5s?si…

A square is sometimes a circle. Proof by waffle iron. #mathinreallife #maththeworld #math youtu.be/J-pqkfwiVgQ Nick Corley NCTM Joseph Diaz National Museum of Mathematics Tim Chartier Cliff Pickover The Math Sorcerer Robert Kaplinsky Dan Meyer MAA

Thanksgiving Meal Math

Now you can finally learn why our icon is a tie-dyed t-shirt! #maththeworld #mathematics #mathinreallife youtu.be/7FCAh5_UovI?si…

What is the cost of the American Dream? Investopedia.com says 4.4 million. We tried a more accurate analysis and got MUCH less. Our analysis is not perfect, what would you change? What did we miss? #americandream #mathinreallife #maththeworld youtu.be/NLXRJHunxnc?si…

An analysis of me and my rollaboard, and why it causes me (and others) headaches when I travel. youtu.be/xZuSj5yOI9Q

A cool video on the power of good boardwork in math class. #math #matheducation #maththeworld #BYU youtu.be/s1i5F5Ep4b4

A cool problem I used on my Linear Algebra class to show that their preferences on the first day of class help to predict their midterm scores. #maththeworld #mathinreallife #math #LinearAlgebra youtu.be/rKb-tuQsAJk?si…

We do the math behind this amazing story where water from an 8 in (20 cm) pipe blows an 8 ton block of concrete out of the ground and back 27 feet (8 meters). #maththeworld #mathinreallife #math #hydrostaticforce #engineeringfail youtu.be/lU04l5c2Bfk?si…

Did you know that when you watch a 3D animation you are actually watching a shadow of a 4D figure cast down to 3D that is then projected on your 2D screen? Below is a link to a video that explains why animations are actually done in 4D. #maththeworld youtu.be/x1F4eFN_cos?si…

A cool introduction to what change of basis really means (converting between units but in a multi-dimensional space) and some really cool applications to show why it is important. #maththeworld #mathinrealife #linearalgebra #changeofbasis youtube.com/watch?v=dOrIK7…

Here is the follow up video to last week's. How to do a change of basis, and how to make sense of it, from a simple context. #maththeworld #mathinreallife #changeofbasis #linearalgebra #math youtu.be/r6e90wZYjwA?si…

I did some checking up on the values in meme that was making the rounds on social media. Unfortunately about every value they share is wrong! Watch the video to see how bad math leads to massive misinformation. #maththeworld #mathinreallife #math youtu.be/id_m8tt4W08?si…