In order to avoid gender stereotyping in the classroom, a teacher should try to put both boys and girls in non-traditional roles. This means that the teacher should actively encourage and provide opportunities for students to explore activities, subjects, and roles that are typically associated with the opposite gender. This approach helps to break down gender norms and allows students to develop a wider range of skills and interests.

By encouraging non-traditional roles, teachers can ensure that students are not limited by societal expectations and stereotypes. This helps to create a more inclusive and equal classroom environment where all students feel comfortable expressing themselves and pursuing their interests. Here is a detailed explanation of why option 'A' is the correct answer:

1. Promoting equal opportunities:
- Placing both boys and girls in non-traditional roles promotes equal opportunities for all students. It ensures that no particular gender is favored or restricted in terms of the activities they can participate in or the roles they can assume.

2. Challenging stereotypes:
- By encouraging non-traditional roles, teachers challenge gender stereotypes and show students that their interests and abilities are not determined by their gender. This helps to break down preconceived notions and allows students to explore their full potential.

3. Developing diverse skills:
- When students are given the opportunity to engage in non-traditional roles, they can develop a wider range of skills. For example, girls who are encouraged to participate in STEM subjects (Science, Technology, Engineering, and Mathematics) can develop problem-solving and analytical skills typically associated with these fields. Similarly, boys who are encouraged to participate in creative arts can develop skills in creativity and expression.

4. Fostering empathy and respect:
- By exposing students to non-traditional roles, teachers help foster empathy and respect among students. They learn to appreciate and value the diverse interests and abilities of their peers, regardless of gender.

5. Creating a safe and inclusive environment:
- When a teacher actively promotes non-traditional roles, it creates a safer and more inclusive environment for all students. Students feel free to explore their interests without fear of judgment or discrimination based on their gender.

In conclusion, by encouraging both boys and girls to explore non-traditional roles, teachers can help create a more inclusive and equal classroom environment. This approach challenges stereotypes, promotes equal opportunities, and allows students to develop a diverse range of skills and interests.