## Friday, January 20, 2012

### iDevBooks Math Apps

The math apps created by iDevBooks  can provide good reinforcement for students familiar with standards-based math curricula, such as Everyday Math and Investigations. There are apps for students to practice partial sums, partial differences, partial products, and partial quotients (and even lattice multiplication). While many math apps are formatted to be “games,” these apps present themselves without bells and whistles, gimmicks, and cute creatures to offer students straight-forward practice.
All the apps can be adjusted to an appropriate challenge level. For example, when practicing partial sums students can work with two or three digit numbers and if they make an error, the ‘movement’ simply stops until the correct sum is chosen.  There is a logical progression to finding each solution, starting with the largest place value first. Students are given an array of choices from which to choose the correct sum. Scanning the choices takes a moment but the choice is then reinforced with an equation, e.g., 100 + 200 = 300, as the 300 takes its position in the partial sums stack.
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