We all appreciate your zeal to upload materials and to contribute to the site. However, please avoid posting the same powerpoints, videos, and worksheets multiple times. Dozens of posts in the past week have said "I don't know if this has been posted yet but . . .," but really you need to read the entire thread to check if in fact it has. And chances are if you got materials from this site, the materials are . . . um, already on the site.
Some chapters for elementary school textbooks are 7 or 8 or more pages long, and that's a good thing. Only a few years ago the only resources we had for those books were the CD-ROMs and our own ingenuity. There are a lot of resources to look through, but please don't add to it by reposting old stuff. If you'd like to endorse or bump an older lesson, use the "quote" button found on the post and let us know how it went.
Thank you for your cooperation and continued support.