# Math Shack

## They said infinity wasn't a number.

And then they met Math Shack.

## Infinite Math Drills

### Math Shack Features

## How It Works

## Mastery-based Learning: How it works and why

“Practice makes perfect,” right? But what happens once you’re perfect? Mastery-based learning works under the assumption that students’ progress through a course should be dependent on their proficiency, rather than the amount of time they spend practicing. Sounds pretty logical to us. And as it turns out, mastery-based learning is super effective: studies show that it has positive effects on the test performance of students in college, high school, and the upper grades of elementary school (Kulik, 'Kulik and Bangert-Drowns, 1990).

#### Mastery learning is built on a few core concepts:

- Allowing the use of hints to help students learn
- Allowing students to work at their own pace
- Ensuring that students have mastered concepts before moving on

#### Students demonstrate mastery in Math Shack by

- Answering X questions correctly.
- Responding on average in under Y seconds.
- Answering at least Z percent correctly without using a built-in hint.

X, Y, and Z will vary depending on the problem type, the difficulty of the problem, the phase of the moon, and which monster truck is the current reigning champion. (But mostly just the first two things.)

Source: Kulik, C.-L., Kulik, J. A., & Bangert-Drowns, R. L. (1990). Effectiveness of mastery learning programs: A meta-analysis. Review of Educational Research, 60, 265-299.