1. First, write your own real-world percent problem.
2. Next, solve a classmate’s problem incorrectly. Include one or two mistakes in your solution.
3. Finally, respond to a different classmate’s post by finding the error in his or her solution. Describe the student’s mistake(s) and provide the correct answer to the problem.
I'm confused with 2 and 3. Why do I need to solve a classmates problem incorrectly? What is the purpose?