Learn how to calculate elapsed time using the timeline method. Calculate elapsed time using the T Chart method: • Calculating Elaps...

Learn how to calculate elapsed time using the T Chart method. Calculate elapsed time using the timeline method: • Calculating Elaps...

Today you'll hear Band 9 model answers from both of us for IELTS Speaking Part 2 questions about math! Surprisingly, we have a lot to say on the subject, and you'll learn a lot about fluency from today's episode.

The Algebra Word Problem Tutor series teaches by examples how to set up algebra word problems and solve them. This program teaches students how to solve word problems that involve speed, distance, and time. Students are taught how to...

In his essay “The Unreasonable Effectiveness of Mathematics”, the physicist Eugine Wigner said that “the enormous usefulness of mathematics in the natural sciences is something bordering on the mysterious”. This statement was inspired by...

Ever wish you could travel backward in time and do things differently? Good news: the laws of physics seem to say traveling backward in time is the same as traveling forwards. So why do we seem to be stuck in this inexorable flow towards...

There’s a deep connection between gravity and time - gravitational fields seem to slow the pace of time in what we call gravitational time dilation. And today we’ll explore the origin of this effect. And ultimately, we’ll use what we...

Time travel stories are cool because both the past and future are somehow more interesting that the present and because everyone wants a redo. But so far it appears we’re doomed to live consumed by regret in the eternal, boring present....

We know that gravity must cause clocks to run slow on the basis of logical consistency. And we know that gravity DOES cause clocks to run slow based on many brilliant experiments. But I never explained WHY or HOW gravity causes the flow...

Physics progresses by breaking our intuitions, but we’re now at a point where further progress may require us to do away with the most intuitive and seemingly fundamental concepts of all—space and time.

Physics is the business of figuring out the structure of the world. So are our brains. But sometimes physics comes to conclusions that are in direct conflict with concepts fundamental to our minds, such as the realness of space and time....

Our universe started with the big bang. But only for the right definition of “our universe”. And of “started” for that matter. In fact, probably the Big Bang is nothing like what you were taught.

A hundred years ago we discovered...

Planck's Length is the length below which the concept of length loses its meaning. What exactly does that mean and what are the incredible implications this fact has upon our reality? To find out check out this episode of Space Time...

0:00 - Introduction<br/>
0:<br/>29 - Speeds<br/>
1:23 -<br/> Total time
1:47 - C<br/>onstraint
2:<br/>37 - Euler Lagrange
4:20 - Solution
5:05 - MATLAB solution
5:42 - MATLAB solution using solver

Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. Dan Meyer shows classroom-tested math exercises that...

Michael Jordan's legendary slam dunk from the free throw line has been calculated at 0.92 seconds of pure hang time. But how many seconds could Jordan have gotten were he doing the same jump on Mars? Or Jupiter? Andy Peterson and Zack...

If you've ever taken a science or math class, you've probably seen the name "Bernoulli" -- and maybe you assumed it was one person, but that family had a squad of mathematicians.

We’ve all heard the phrase “Time is money.” But what do these two things actually have to do with one another? German Nande explains the math behind interest rates, revealing the equation that will allow you to calculate the future value...

Scott Rickard set out to engineer the ugliest possible piece of music, devoid of repetition, using a mathematical concept known as the Costas Array. In this surprisingly entertaining talk, he shares the math behind musical beauty ... and...

Lockdown math announcement

You and the professor have driven your DeLorean back to the past to fix issues with the spacetime continuum caused by your time traveling. But another DeLorean appears with older versions of you and the professor. The professors panic...

Hey everyone, and welcome back Math Defined! Today, we're diving into the hilarious and relatable world of "Math Curse" by Jon Scieszka and Lane Smith.



Ever feel like math is following you everywhere you go? Like you...

In this short math video we will be comparing linear functions using unit rates & one time fees to answer a standardized math test question. We will consider two different bills with costs incurred for hourly rate (unit rate or slope)...

In this short video lesson we will answer a standardized math test question where we are asked to find the speed someone finished a race faster than someone else. We will review that faster equates to less time in math and we need to...