# How to slide and divide

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## Math Matters- Slide and Divide

Slide the leading coefficient over, under the constant, and multiply the two together. Re-write the trinomial without a leading coefficient. 2 ? 5 .

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When I teach the unit on polynomials and factoring in Algebra 1, I start off my first lesson on factoring trinomials with a discussion on which has fewer options: multiplying to a number, or adding to the same number? Students take a couple minutes to list out all pairs of numbers they can think of and then share out to the class. Multiplication gives us fewer options, which will allow us to do less work. This will be really important to what we do in just a moment. NOTE 1: I provide students with a factor pair chart as an aid to help with identifying factors later on. NOTE 2: We originally began using only whole numbers as a starting point, but students then wanted to branch out further. Could we extend this question to include integers?!

I say no-way but ask him to tell me more after class. If he's right, I promise him an extra five points on the next quiz. Slide and Divide always works. So how does it work, why does it work, and what made it stop working. We begin with an easy example:.

The "slide and divide" method is a way to factor second degree poynomials of the form ax2 + bx + c, and is designed for the "hard" case, when the a value of the.
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So if factoring by grouping or box or slide and divide or airplane or bottoms up is not working for you or your students i. Better break out the calculator and punch. Here are the above charts in a handy word doc in case you want to discuss with your department. Unless you want to hear them complain about the guess part of it all day long. File here. Next year: save grouping for polynomial chapter. And then the quadratic formula I save completing the square for converting to vertex form; see it in this post.

Math [ Privacy Policy ] [ Terms of Use ]. He didn't give me the name of the method but I know it's not FOIL or the grouping method first part is similar. Here's how to do it: ex. How can I prove it? Now that I know the steps, I want to know why it works. It may look complicated, but so far, this is by far the easiest way I have learned to factor trinomials. Thank you.

Players learn by sliding tiles into the center to match an answer, equation or image. The player who slides their tiles first wins. Children are unlikely to progress without learning these key facts. This app is specifically designed to help children learn this critical skill in a fun way. If Game 1 is too hard or Game 9 is too easy this app is not at the right level. The free version of this app allows each game to be played twice before a decision needs to be made to purchase. Games 1 and Game 10 can be played unlimited times for free.

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