When teaching the types of slope for the first time in pre-algebra/algebra, it seems pretty easy right? You expect your students to be able to pick up the whole positive, negative, zero, undefined thing with very little problems. Well, sometimes they just don't. Especially the zero and undefined slopes. So, every year I teach this, I give the students 4 post-it notes that say each type of slope. They then have one minute to go around the room and put their post-it note on something that has that type of slope. When they are all done, we go through and make sure all of the post-it notes are correct, and then we leave them up there. It is a constant reminder to my students what the different types of slope are. |

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