JAILBREAK Proportional Reasoning Original Handbook Problem: Spike can dig 8 holes in 3 hours. Butch can dig 7 holes in 4 hours. Lucky can dig 6 holes in 5 hours. How many minutes will it take them to dig 3 holes if all three work... Read More
SHERLOCK: A STUDY IN PI Measurement Finalist in the 2017-2018 Math Video Challenge. This video was created by Salk School of Science. Read More