3. I agree that every group is a mixed-ability group. Some implications for teachers are: Pairing strong and weak students, allowing students enough time to check and discuss answers, taking into account motivation and learning style when planning lessons.
4. I think mixed ability is definitely a challenge, but there are certain advantages to it. For instance, mixed ability demands that teachers include a variety of activities in the classroom. This can allow students to be exposed to a dynamic and multifaceted learning environment. Students can also learn from each other and about their own strengths and weaknesses.