Great learning tool
This is a great tool for students. Love that it now has the ability to perform an operation to both sides by hitting = sign as that supports the notion of solving using inverse operations rather than dragging across the equal sign and changing the sign. I wish you could choose subtraction as an operation rather than choosing to add a negative, however. I also wish it was a little easier to just enter your own problem rather than creating it as part of a problem set so students could easily add a question they are working on in kind of an instant mode to do the problem and then add the next one, do it and so on. Overall, a great app. Using a Computer Algebra System is in our curriculum in Ontario and this is the most intuitive one I have seen.
J in JACKS about
Algebra Touch, v1.5.1