Introducing algebra- consecutive numbers addition puzzle

Here’s are really good way of introducing algebra and getting across the idea of what a variable is. The pdf slides that you can use on the interactive white board to run this activity are here.

Start by getting the pupils to draw this diagram in their books:

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Mexican Wave Sequences

A great little game to make sequences fun!

Get the pupils into a horseshoe. Put up an nth term rule on the board. They have to do a mexican wave around the horseshoe but as they stand up they have to shout out the next term in the sequence. The first person is n=1, second person is n=2 etc… See if they can get all the way around the horseshoe without making a mistake. If they do make a mistake they have to start again! Increase the complexity of the nth term rules as you go along!

A great game as it reinforces the idea that the common difference is the coefficient of the n term.

Sorry, I can’t remember who put forward this idea but it is brilliant. Thank you!

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