The education section of the British National Archives has a nice collection of classroom resources. There are lessons with primary sources from the archives and discussion questions, sets of lessons around various themes, and a few online games. You can search the collection by age level or historical time period.
Tuesday Language Arts
This company provides books and activities for developing vocabulary.
This is a small mom-owned company that provides science resources.
Thursday History/Social Studies
This British site has resources for history learning at jr. high and high school levels.
Learn computer science through game design with this online visual programming platform.
Saturday Grab Bag
Printable curriculum materials for preschool through second grade levels.
This site gives instant, step by step solutions to math problems.