Research-based, standards-aligned, single or multi-player
Topics include: geography, language arts, time, addition, subtraction, multiplication, division, integers, decimals & fractions
If you're looking for information you can trust about kids and teens that's free of "doctor speak," you've come to the right place. KidsHealth is the most-visited site on the Web for information about health, behavior, and development from before birth through the teen years.