Algebra start by Xr

This is a lovely app that covers a variety of topics such as the introduction, products, powers, brackets, simplifying, like terms and division.  Each section provides instruction with examples.  Then there are three levels of practice and each question offers the choice of actually completing the problem or requesting another example.  Furthermore, if a student is incorrect, the program explains the correct answer and then the student tries again.  This will be good to help student practice each topics and will be used for a decent part of the pre-algebra and algebra 1 class.  This is a nice program.