Math Playground is an an action-packed site for elementary and middle school students. They practice math skills, play a logic game and have fun!
Interactives - "Interactives" provides educators and students with strategies, content, and activities that can enhance and improve students' skills in a variety of curricular areas.” There were interactive in Math, Science, Language and History for all different grade levels.
Photosynth: “Photosynth uses hundreds of standard digital camera images to construct a three-dimensional view of an environment or "synth". These synths can be explored much like a video game, allowing you to explore, zoom into tiny details, and see where the photographer was standing (or flying) when they took the pictures.”
Flash Card Maker – easy to make flash cards for math or words.
PestWorld for Kids – explore the world of pests; includes lesson plans, classroom resources, and learning games.
Photo credit: tools by misterjt