Uploaded February 2025 | Updated September 2026, 2 weeks ago
You might think building a simple wooden pyramid is easy. But turns out carpentry involves a lot of math! Each face is an equilateral triangle, so you’d expect to tilt the saw blade at 30 degrees... but that’s completely wrong! So how do you find the right angle? Well, that will involve some geometry and trigonometry, but for the simplest solution we'll use linear algebra in 4 dimensions!
Math The World is dedicated to bringing real world math problems into the classroom and answering the age old question “when will I ever use this?”
We use unique topics for algebra, trigonometry, calculus, and much more and go beyond context problems and use a technique called mathematical modeling to find solutions to real world questions and real world problems. These videos are great for students who plan to enter technical fields that require real world problem solving, and can be a great resource for teachers looking for ways to bring real world contexts into their classroom.
Instagram: instagram.com/maththeworld
Twitter/X: twitter.com/math_the_world
Facebook: facebook.com/maththeworldproject
Email: MathTheWorld@byu.edu
Created by Doug Corey
Script: Doug Corey and Jennifer Canizales
Audio: Doug Corey
Animation: Jennifer Canizales
Music: Coma Media \ Restum Anoush from Pixabay
© 2024 BYU
You might think building a simple wooden pyramid is easy. But turns out carpentry involves a lot of math! Each face is an equilateral triangle, so you’d expect to tilt the saw blade at 30 degrees... but that’s completely wrong! So how do you find the right angle? Well, that will involve some geometry and trigonometry, but for the simplest solution we'll use linear algebra in 4 dimensions!
Math The World is dedicated to bringing real world math problems into the classroom and answering the age old question “when will I ever use this?”
We use unique topics for algebra, trigonometry, calculus, and much more and go beyond context problems and use a technique called mathematical modeling to find solutions to real world questions and real world problems. These videos are great for students who plan to enter technical fields that require real world problem solving, and can be a great resource for teachers looking for ways to bring real world contexts into their classroom.
Instagram: instagram.com/maththeworld
Twitter/X: twitter.com/math_the_world
Facebook: facebook.com/maththeworldproject
Email: MathTheWorld@byu.edu
Created by Doug Corey
Script: Doug Corey and Jennifer Canizales
Audio: Doug Corey
Animation: Jennifer Canizales
Music: Coma Media \ Restum Anoush from Pixabay
© 2024 BYU








![This is how a penny COULD kill you if thrown from a skyscraper | part 2
Throwing A Penny Part 1: https://www.youtube.com/watch?v=SReKyKsyBOk
Penny Breaking Skin Short: https://youtube.com/shorts/rOO99M5WT1k?feature=shared
Math The World is dedicated to bringing real world math problems into the classroom and answering the age old question “when will I ever use this?”
This video answers the question “ [insert specifics about this video]” We use [insert subject] to answer this question and show a step by step process of our problem solving / mathematical modeling approach. We also address additional questions like “[insert other questions addressed in the video].”
We use unique algebra context topics, geometry context topics, trigonometry context topics, and calculus context topics. We go beyond context problems and use a technique called mathematical modeling to find solutions to real world questions and real world problems. These videos are great for students who plan to enter technical fields that require real world problem solving, and can be a great resource for teachers looking for ways to bring real world contexts into their classroom.
Instagram: instagram.com/maththeworld
Twitter/X: twitter.com/math_the_world
Facebook: facebook.com/maththeworldproject
Email: MathTheWorld@byu.edu
Created by Doug Corey
Script: Doug Corey and Jennifer Canizales
Audio: Doug Corey
Animation: Jennifer Canizales
Music: Coma Media
Captions: Brandon Walton
© 2023 BYU This is how a penny COULD kill you if thrown from a skyscraper | part 2](https://i.ytimg.com/vi/mEGpYQnNdxk/mqdefault.jpg)

