Buy used!

 I cannot emphasize enough that you should buy used education materials!  We use older math textbooks for Co-op.  Why?  They are much cheaper.  The older Algebra editions also have more graphing calculator exercises embedded.  We want the kids to learn how to use the graphing calculator.  There are unfamiliar applications; the older textbooks have instructions missing from newer editions; the publishers tend to assume the younger teachers are already familiar with these applications and can integrate them on their own.

I buy science kits just for their equipment.  I’m not worried about using the labs themselves.  I want the mini scales, beakers, and graduated cylinders.  I set a max price of about $25 total, including shipping when I bid.  If I loose the bid, so be it.  If I need a set of microscope slides, I’ll buy a science lot with a microscope.  I’m not concerned about the microscope working because I just want the slides.  If it does work, that’s just a bonus.  Again, I compare prices in Walmart, Amazon, eBay, Good Will, and Temu before making any bids.  Below are a few examples of kits or lots with interesting items.