Reading Comprehension Passages (choose the appropriate grade level) http://abcteach.com/directory/reading_comprehension/
Word Jungle -- Vocabulary Building Activity http://www.fekids.com/kln/games/wordjungle/
Sentence Types (A Houghton Mifflin Harcourt Web Activity) http://www.harcourtschool.com/activity/clubhouse/index_pre.html
ELA and Math Skill Builders http://www.internet4classrooms.com/skills_5th_original.htm
Math is Fun -- Practice Numbers Skills and Problem Solving http://www.mathsisfun.com
Interactive Math Site http://edweb.tusd.k12.az.us/ekowalcz/math/elementary_web_sites.htm
CIA - The World Fact Book https://www.cia.gov/library/publications/the-world-factbook/
Encarta http://encarta.msn.com/Default.aspx
Pics4Learning.com Image Collection http://pics4learning.com/
World Almanac for Kids http://www.worldalmanacforkids.com
National Geographic for Kids http://www.nationalgeographic.com/kids/
LearningPlanet Activities http://www.learningplanet.com/stu/kids3.asp
Scholastic Online Activities and Interactive Learning http://www2.scholastic.com/browse/learn.jsp?grades=35