I wanted to introduce them to standard form and have usually done this by giving the equation and having them graph. In years past, I found many students really struggled with For some reason, I decided on a different approach this year. This year I gave students the x and y intercepts and asked them if they could figure out an equation that would fit. I introduced this equation as:

**____ x + ____ y = ______**

It became a puzzle and eventually kids nailed the idea that if we have the points

**(2, 0) and (0, 3),**we can write the equation as:

**3x + 2y = 6.**And after 5 or 6 examples, I gave them the points:

**(e, 0) and (0, f)**to which they responded with:

**fx + ey = fe.**

Now, given the equation, can we find the x and y intercepts?

Not a problem.

The game play at the beginning of the lesson really opened them up to the idea which made any actual instruction I had to do much easier.

In the end, I say it was a win.

## 2 comments:

Nice!

Love this! Thanks!

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