Multiple user profiles and some kind of progress tracking would be an improvement for classroom use, although kids could benefit from 5- to 10-minute blocks of straight practice. The banner ads are nearly always present, and although they're relatively unobtrusive, there really should be an option to pay to remove the ads.Continue reading Show less
Multiplication Genius is an effective but no-frills multiplication practice and test app. Students can select any combination of factors from 2 to 12 in practice mode but are tested on all in test mode. For each problem, students get 20 seconds. Answers given within two seconds get a "Perfect"; those within six get a "Good!"; and those within seven to 20 get a "So So." Incorrect answers or failure to answer elicit a cute audio "uh-oh," and the correct answer flashes.
On the main menu, kids can choose to review times tables (in a list format), to practice, or to play a game. In practice mode, kids choose any combination of factors (for instance, they can test themselves just on 2s), then proceed to play. Game mode presents random expressions and four multiple-choice answers. The score displays at the bottom of the screen, where kids can also see what question they're on and how much time they have left (they start with 20 seconds).
Through practice and testing, kids will assess their knowledge of multiplication facts and learn correct answers for ones they haven't mastered yet. High scores will keep some kids testing endlessly, as there are no levels or other data, but others may get bored. Times tables are provided, unlike with some other calculation apps, which is OK for skip counting memorization but less useful than the table format for seeing patterns.
If the app included division, and possibly addition and subtraction, it would provide a bit more useful depth. Levels or a reward system would provide a bit more closure and motivation as well.
Key Standards Supported
Number And Operations In Base Ten
Multiply a whole number of up to four digits by a one-digit whole number, and multiply two two-digit numbers, using strategies based on place value and the properties of operations. Illustrate and explain the calculation by using equations, rectangular arrays, and/or area models.
Fluently multiply multi-digit whole numbers using the standard algorithm.
Operations And Algebraic Thinking
Fluently multiply and divide within 100, using strategies such as the relationship between multiplication and division (e.g., knowing that 8 × 5 = 40, one knows 40 ÷ 5 = 8) or properties of operations. By the end of Grade 3, know from memory all products of two one-digit numbers.