Help each other and work together
If a student can't figure out how to solve a problem, he or she can see how other classmates answered it correctly.
Students can see how their classmates solved each problem and can rate their explanation of the problem. This motivates students to put extra effort into their explanation.
The system gives partial credit when students see how their classmates solved the problem.
Students gain a solid understanding of how to solve each problem and go to school having understood their homework.