In this video, the teacher explains how to estimate the number of boxes each team member needs to sell and the number of cars needed for a trip. By using basic multiplication and division facts, the teacher demonstrates how to determine...

In this video, the teacher explains how to solve story problems involving subtraction of unlike fractions using fraction bars. The example problem involves Tammy's construction company buying bags of gravel and using a fraction of a bag...

A fitness trail is being built around a park. The designer plans for the trail to be nine tenths of a mile long, with different stations every three twentieths of a mile. How many exercise stations will they have on the trail?

SchoolOnline's Secondary Maths videos are brilliant, bite-size tutorial videos delivered by examiners. Ideal for ages 13-17, they cover every key topic and sub topic covered in GCSE Maths in clear and easy to follow...

An approximation is anything that is similar, but not exactly the same as something else. For example, if you were to say a 57 minute journey would take “about an hour”, you would be approximating. A value can be approximated by...

The simulation argument. Is the matrix real? Could your reality including everything you’ve ever known, be nothing more than pixels on a super advanced computer simulation? The argument that we may be living...

Physicists estimate that dark matter accounts for about twenty three percent of the known universe - the only problem is that no one really knows what it is...

Love is a complicated combination of brain chemicals and behavior that scientists are only just beginning to figure out. And it's remarkable that in every society that we have looked at on Earth, romantic love exists. So if love is so...

The Drake Equation tells us the likelihood that there are other advanced technological civilizations waiting for us among the stars. In this episode of Space Time we challenge you to use the Drake Equation to help us determine how near...

Do Aliens exist? Are we alone in the universe? Where is everyone? Fermi Paradox and Drake Equation: Where is everyone? You probably already know that there are more stars in the universe than all the...

This video explains definitions for some common keywords used in mathematics. A practice activity (matching activity) is included at the end of the video.

A soggy 2013 spring, with near record rainfall in some areas, has led to flood warnings in Iowa, Illinois, Missouri, Arkansas and Oklahoma. With the floodwaters come questions as millions brace for the next wave of...

Go to href='https://brilliant.org/MinuteEarth' target='_blank' rel='nofollow'>to to build your math & science skills! Food already in cupboards, supermarkets, & warehouses could feed humanity for 4 months, but potential food -...

Food already in cupboards, supermarkets, & warehouses could feed humanity for 4 months, but potential food - berries, termites & krill - could extend that by another...

It is thought that a person working at an Iranian nuclear facility inserted a malware-infected USB drive into a computer. This malware is called Stuxnet and was developed by the USA and Israel specifically to...

Use ballparking when you have no time to solve the complete problem. Join us at href='https://www.patreon.com/sprouts' target='_blank' atl='nofollow'>at and check out the GMAT training app from The Economist