eleagan,
Sorry to be slow in responding to your question. If you are looking for resources for teaching math concepts, then you should look at The Classroom Suite from IntelliTools.
http://store.cambiumlearning.com/ProgramPage.aspx?parentId=074003925&functionID=009000008&site=itcIt provides a virtual manipulatives math environment that is switch accessible. You might want to take a webinar introduction from a SETC staff member and/or check out the video demos on the IntelliTools website.
http://www.intellitools.com/ICS4videos.aspx?site=itcThere are also some great web-based activity centers listed below.
http://www.explorelearning.com/http://nlvm.usu.edu/http://illuminations.nctm.org/If you are looking for a means for the student to demonstrate knowledge in the basic operations try MathPad from IntelliTools. It is also switch accessible as is MathPad Plus which focuses on computation with fractions and decimals.
http://store.cambiumlearning.com/ProgramPage.aspx?parentId=074003433&functionID=009000008&pID=&site=itcFor alternative expression of higher level math look at Geometer's Sketchpad and MathType. MathType supports computer based expression of algebra, trigonometry, calculus, etc.
http://www.keypress.com/x5521.xmlhttp://www.dessci.com/en/products/mathtype/PLease let me and other readers of this forum know what you discover.
Jerry Connolly