# Algebra Gradient Line Points Equation Tic Tac Toe PowerPoint Games

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There are four click-able games in this PowerPoint. Each click reveals the answer,a X or a O. They are ideal for playing at the end of each class (allow 10 minutes) as revision for this topic. The games begin with basic skills problems involving gradients from plotted points, tables of points and linear graphs. Some questions involve finding missing points using tables or equations, and identifying intercepts. They then progress to more challenging ones that involve connecting ideas.

It is an adaptation of a class game that is played on the whiteboard and works in the same way that Noughts and Crosses works, the object being to get 3 Os or 3 Xs in a row but the students have to get answers correct in order to gain the O or X.

Students are very engaged when playing this. It is a great opportunity also for them to give a reason for their answer, reinforcing the ideas about gradients, points and equations of lines, so it is very good way to make opportunities for discussion...

Divide the class in half (or play one group against another). Random individuals on each side of the class put their hand up and take turns to answer the questions. They never have two turns in a row ie never two Os or two Xs in a row.

If an answer is correct then you click on the question and the answer appears - click on the answer to choose O or X. It's very easy to play but make sure you have a little play with it before involving your class.

You may need to develop your own rules depending on the class. Play it once and you'll know what is meant by this comment. For me, when a student answers correctly and before I click for a O or X, I get them to explain their understanding, just briefly, because it's a learning point for others. If they answer incorrectly then I usually say something like "nearly there" or "you're on the right track" (because I want to encourage answering) before going to the other side of the class.

This PowerPoint opens up straight away in slideshow mode. There are four games here. Every second slide is a set of answers which you should probably print out before you play but you don't really have to if you have the inclination to work out the answers on the spot. There is also a pdf with answers (easy to print out).

There are other Noughts and Crosses games in my shop (Geometry, Algebra and Number ones) - more are on the way.

Have fun!!
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