Arithmetic sequences

Imagine we have four bags containing numbers from a sequence. What numbers can we make now?

Can you describe what is happening as this program runs? Can you unpick the steps in the process?

What's the greatest number of sides a polygon on a dotty grid could have?

Can you find the connections between linear and quadratic patterns?

Watch the video to see how to add together an arithmetic sequence of numbers efficiently.

Some students have been working out the number of strands needed for different sizes of cable. Can you make sense of their solutions?

Alison, Bernard and Charlie have been exploring sequences of odd and even numbers, which raise some intriguing questions...

Watch these videos to see how Phoebe, Alice and Luke chose to draw 7 squares. How would they draw 100?

Imagine we have four bags containing a large number of 1s, 4s, 7s and 10s. What numbers can we make?

MatildaMatildaMatil... What is the 1000th letter?