Discovery Education - Lots of interesting websites, books, and information about almost anything. You can request information for kindergarten through 2nd grade (K-2) to view appropriate material for your students age.
To log in, use the following:
Username is: students powerschool number plus @k21schools.org
Password is: KGBSD plus students first and last initial
(Example: Username firstname.lastname@example.org Password: KGBSDpb)
If you don't know your students powerschool number, you can request if from me via e-mail.