In Week 24, we listed the Common Core Standards for Mathematical Practices. The third standard is to Construct viable arguments and critique the reasoning of others.
Mathematically proficient students understand and use information to construct arguments. They make and investigate conjectures. They can recognize and use counterexamples. They justify their conclusions, communicate them to others, and respond to the arguments of others. Students at all grades can listen or read the arguments of others, decide whether they make sense, and ask useful questions to clarify or improve the arguments. How has working with a team helped your student meet this standard?