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Here is a division drill that will develop skills in both basic division and mental arithmetic. Yet it's simple enough to do while watching children's TV.

The student can begin with no remainders: dividing integers from 3 to 9 (called divisors) into a dividend which has been calculated so that the division is even. After the student enters the answer (a single digit in the simplest version) it is scored and, if correct, he/she progresses to the next problem. If incorrect, the student is prompted to re-enter the correct answer. As each problem is completed the number of errors is tallied. At the end of the sequence the student has evidence of his/her progress that can be shown to the teacher/parent.

Division with remainder presents slightly more challenges. The answer is entered in a 2 step process: first the quotient; when that is correct the remainder is entered. The number of cases and problem difficulty can be selected from a setup menu. The problems are built from factor numbers selected at random, so the student is unlikely to encounter the same problem twice in a sequence, and almost never for problems with remainder.

The beginning student/user is expected to use pencil and paper for calculating remainders (particularly the first few times the app is used). However, he/she should be encouraged to do without pencil and paper as soon as comfortable. Calculating the remainder without resorting to pencil and paper provides a nice drill in simple mental arithmetic.