Math
http://www.eduplace.com/kids/mw/egames/ega_1.html
http://www.internet4classrooms.com/skills_1st_math.htmedhelper isn't really an interactive website but you can print some really good practice sheets to enhance a concept.
Math and Language
http://www.internet4classrooms.com/k12links.htm
Some of the actual sites are old and/or need special browsers to open - I applogize for this but for the most part, it is a great way to get a variety.
Miscellaneous
Sight Word Games
http://www.quiz-tree.com/
Scroll down to Quiz-Tree News and choose the 2nd and/or 4th choices.
