Kits come ready to use. Love the email updates. Supplemental books and worksheets are great. Do not use as much as I would like because they do not match curriculum at all. Manual was wonderful with good background.
Kits are a valuable resource.
Children enjoy these activities and the kits have saved me a bundle of money that I normally pay out of my pocket. Returning is a problem - Not on regular schedule. I feel the kits enhance the units I teach in science. This program has given my students and me great opportunities to learn science-using hands on approaches. I really enjoy using them.