To some this post is stating the obvious: keep your old materials for teaching. With all the “home makeover” shows on today, there is a definite emphasis on minimalism. Feng Shui and Hoarding are also a part of our modern vocabulary but throw all that away and keep old stuff! Remember encyclopedias? I kept a set. I don’t use them often but it’s a teaching opportunity to show the kids what life was like before the internet. We would consult World Book instead of Google. Kids get a sense of history that way. For example, compare the Apollo flight to the moon article in an encyclopedia to a Google search. Kids just don’t know there is a difference.
Keep old textbooks that the District tells you to discard. I know so many teachers who regret getting rid of an old math series we used to use. I kept 21 of them! I wish I would have kept the 35 I once had. Another thing these are really good for is independent study. I sometimes get requests for independent study curriculum when kids are going to be out for weeks. When you have an old text, you can work with it and not risk losing the current texts. Of course, kids muct always have the option of taking home the current text per William’s act. These textx are great for small group work and even homework.
Math manipulatives are notorious for being thrown out, as are Science kits. Both are golden to have around. I have noticed, for example, that many of my kids annot tell tradition time as in the hands of a clock. I got a hold of a kindergarten math kit a colleague had kept and I used it to teach time in about three sittings of 3 minutes each. Tis is helpful to all subjects and in all standards. You never know where it will pop up. Not to mention the kids that may think it’s cool to have an analog watch. Keep old stuff, I guarantee you’ll use it, Of course, some stuff must be thrown away. Someone said, it you don’t use it for 2 years, throw it away. I’ll leave that up to you.