Khan Academy
Two Passing Bicycles Word Problem
In this video, Sal solves a word problem sent in by a listener with two cyclists riding towards each other over a given time. It is an interesting problem regarding ratios and the relationship between distance, rate, and time. He shows...
Khan Academy
Overtaking Word Problem
These types of problems cause many people to be distressed over algebra. In this video, Sal looks at a problem where three people, each at set distances apart, are traveling at different constant speeds. We need to know how long it will...
Curated OER
System of Equations for Passing Trains Problem
Here is a challenging motion problem about two different length trains and how long it takes them to pass each other going in the same direction and opposite directions. At first glance, there doesnÕt seem to be enough information given...
Curated OER
How Do You Figure Out the Time Traveled if You Know Distance and Speed?
Yes, it's a word problem, but you know the formula for distance, d=rt. The word problem here gives you two values so all you have to do is plug them into the correct place and solve. Don't forget to use the division property of equality...
TED-Ed
The Tower of Epiphany | Think Like A Coder, Ep 7
Let coding save the world. As part of her quest, the hero of the series must retrieve the Node of Creation from the Tower of Epiphany. This requires solving a computer programming puzzle to determine the energy needed to fill a basin...
TED-Ed
The Artists | Think Like A Coder, Ep 5
Create a diversion! Continuing the quest to save the world, the hero of the series needs to find an artifact inside a tower. To distract the guards, she programs a robot to vandalize some artwork. Viewers learn how to apply loops and...
TED-Ed
The Prison Break | Think Like A Coder, Ep 1
Break free from monotonous lessons. An engaging video introduces the computer coding series and describes the ongoing context. Robots have taken over, and the hero needs to escape from prison and save the world by solving a set of clues....
TED-Ed
The Train Heist | Think Like A Coder, Ep 4
Robots come in handy when planning a train heist. The hero and her robot continue their quest to find artifacts to save the world. They must locate and steal the Node of Power on a specific car of a train by writing computer code for the...
Curated OER
What is a Literal Equation?
Have you ever heard of a literal equation? You might already know of a few! As this video explains, literal equations have multiple variables that often represent known values. Watch the video to learn more!