Tell students their job is to understand one another's solution strategies by relating and connecting other students' approaches to their own approach. 

1. Set-up: Ways to set this up so that multiple strategies are likely to be generated by each pair of students: 

   • I solve it one way, you solve it another

   • Divide and conquer: you do one and I do another

   • I have a piece of info, you have a piece of info

2. What is similar, what is different: Students first identify what is similar and what is different about the approaches. This can also be initial discussion about what worked well in this or that approach, and what might make this or that approach more complete or easy to understand. 

3. Mathematical focus: Students are asked to focus on specific mathematical relationships, operations, quantities, and values. 

FOR EXAMPLE:

• Why does this approach include multiplication, and this one does not?

• Where is the 10 in each approach?

• Which unit rate was used in this approach?

• Who can restate ____'s reasoning in a different way?

• Did anyone solve the problem the same way, but would explain it differently?

• Did anyone solve the problem in a different way?

• Does anyone want to add on to ____'s strategy?

• Do you agree or disagree? Why?