http://www.readwritethink.org/files/resources/interactives/picturematch/

This website would be great to teach many phonics lessons.  You can choose a beginning letter sound and pick the letters to use or have the computer pick random letters then a picture is shown and the student clicks on the correct bos to put it in.

Great site to reinforce letter sounds.  Would be a great group or individual activity.

http://americanhistory.si.edu/onthemove/games/game1/game1.html

Cool website that discusses the history of transportation.  Students are given different pictures and then have to decide where to put them according to year and type.

Would be great to use for a history class.

http://www.readwritethink.org/files/resources/interactives/factfrenzy/opening.html

A very informative site where students are taught how to find the necessary facts in something that they are reading.  There is a demo that you can watch first that is very helpful.

Would be agreat place to go to when starting a unit on report writing or just teaching students how to take notes.

http://www.sciencenetlinks.com/interactives/marble/marblemania.html

On this website you learn about randomness and probability.  Students choose the number of marbles and number of trials etc. and then the computer does the trial.

Would be a good place to go for probabiliy in math and also for an example of different types of graphing.

http://americanhistory.si.edu/cgi-bin/westpoint/question1a.pl

A very interesting website that has trivia about West Point graduates throughout history.  A very intersting and informative site.

Would be a great place to go when having a study of military in history.

http://americanhistory.si.edu/coins/flash/game/index.shtml

An interesting website where you become lost in a coin vault and you must find certain coins to get out.  There are clues along the way to help you.

A very useful site for a study in historical coins.

http://www.readwritethink.org/files/resources/interactives/letter_generator/

Wonderful website that teaches students how to write business and friendly letters.  The student goes through several steps to fill in the necessary information and then the letter is generated.

This is a great site to use probably more for the upper grades.  However it would be an important thing to teach especially since letter writing is becoming extinct in my opinion.