The teacher pages at the Library of Congress website have many useful resources. There are ideas and tools for using primary sources in learning. There are also lesson plans, presentations, activities, and theme based collections. A wonderful site for American history study!
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.