Here are some guidelines my partner and I developed after discussing our answers:
1. Use concrete, familiar examples from students' lives when introducing new concepts.
2. Provide hands-on activities for students to explore symbols before abstract discussion.
3. Check for understanding throughout by asking open-ended questions.
4. Be flexible - adjust lesson based on students' responses and developmental levels.
5. Assess each student individually to ensure readiness before moving to more complex ideas.
The most important things are getting to know your students, adapting to their thinking, and providing concrete experiences before abstract concepts. Flexibility and ongoing assessment are also key.