Where Was The Big Bang

Elephants might be strong, but they are weak compared to ants because ants have certain advantages that allow them to outlift their larger competitors.

Record-breaking drought continues to scorch wide swaths of sub-Saharan Africa, from Somalia in the east to Niger in the west. Humanitarian groups say tens of millions are hungry and conditions are being made even worse by the...

What is a change of basis, and how do you do it?

What is a change of basis, and how do you do it?

What exactly are fractals? A common misconception is that they are shapes which look exactly like themselves when you zoom in. In fact, the definition has something to do with the idea of "fractal dimension".

What exactly are fractals? A common misconception is that they are shapes which look exactly like themselves when you zoom in. In fact, the definition has something to do with the idea of "fractal dimension".

Physicist Geoffrey West has found that simple, mathematical laws govern the properties of cities -- that wealth, crime rate, walking speed and many other aspects of a city can be deduced from a single number: the city's population. In...

A new study calls the claims of fossilized brains into question, and another finds ichthyosaurs might have been bigger than our current champions, the blue whales.

Our lives depend on curbing climate change, but so many priorities seem to be in competition. What's the most urgent thing humanity can do right now? Social entrepreneur James Irungu Mwangi tells us why Africa could be the ideal home for...

Where Was The Big Bang

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. The world is becoming increasingly open, and that has implications both bright and dangerous. Marc Goodman paints a...

Today we’re going to create memory! Using the basic logic gates we discussed in episode 3 we can build a circuit that stores a single bit of information, and then through some clever scaling (and of course many new levels of...

Pupil outcome: I can explain how to multiply 1-digit numbers by decimal fractions using written methods. Key learning points: - Use scaling to convert the decimal fraction to a whole number then multiply; use scaling to adjust the...

Pupil outcome: I can position six-digit multiples of one thousand on a marked but unlabelled number line. Key learning points: - Counting on and back identifies the unlabelled marks on the number line. - Thinking about the value of the...

Pupil outcome: I can position five-digit multiples of one thousand on a marked but unlabelled number line. Key learning points: - Counting on and back identifies the unlabelled marks on the number line. - Thinking about the value of the...

Pupil outcome: I can understand that multiplying by 10 makes a number ten times the size. Key learning points: - Finding ten times as many is the same as multiplying by 10 - 10 is ten times the size of 1 - A digit in the tens column is...

Pupil outcome: I can scale known multiplication facts by 100 Key learning points: - If one factor is made one hundred times the size, the product will be one hundred times the size. - One factor has been multiplied by 100 so the product...

Pupil outcome: You can use knowledge of multiplication and division to solve scaling problems in a range of contexts Key learning points: - Multiplication and division are used to convert between measurements on a map or plan and those...

Pupil outcome: I can understand that dividing a number by 10 makes it ten times smaller or one tenth the size Key learning points: - 1 is ten times smaller than 10 or one tenth the size. - Dividing by ten makes the number ten times...

Pupil outcome: I can use place value to explain removing the final 2 zeros from a multiple of 100 when we divide by 100 Key learning points: - Dividing by one hundred moves all the digits two columns to the right making them one...

Pupil outcome: I can scale division facts derived from multiplication facts by 100 Key learning points: - If the dividend is multiplied by 100 then the quotient will be one hundred times the size. - The dividend is equivalent to the...

Pupil outcome: I can explain when a calculation represents scaling down and when it represents repeated addition Key learning points: - A calculation can represent scaling down or finding a fraction of the whole number. - A calculation...

Pupil outcome: I can explain how to use written methods to divide decimal fractions by 1-digit numbers. Key learning points: - Use scaling to convert the decimal fraction to a whole number; after dividing, use scaling to adjust the...