FOR ALL AGES
Worksheet Works has a variety of printable math and English worksheets. Each worksheet will contain different problems each time it is selected. Levels vary.
Math-Drills includes over 50,000 free printable math worksheets including addition, subtraction, multiplication, division, fractions, money, etc.
DTLK has educational activities and crafts for children (some are printable).
Common Core Sheets has printable math as well as language, social studies, and science worksheets.
Math Playground has many games that can be played on a computer (levels Grade 1-6).
Breaking News English Lessons presents current news stories in several reading levels.
The story and various worksheets can be printed.
VOA (Voice of America) Learning English Video/Audio Lessons at several levels, lessons on the Constitution, etc.