Yes, interns usually need to write an effect evaluation when writing a lecture. Attending class is an important task for interns to participate in the teaching process. By recording the classroom content, teachers' teaching methods and students' feedback, we can make a comprehensive analysis and evaluation of classroom teaching. When writing the effect evaluation, you can consider the following aspects:

1. Mastery: record students' mastery of what they have learned in class. For example, whether you can answer questions accurately and use what you have learned to solve problems.

2. Interest: Assess students' interest in the course content. For example, whether you can actively participate in class discussions and ask questions.

3. Effect feedback: record students' feedback on teachers' teaching methods and curriculum design. For example, whether the way students explain to teachers is clear and easy to understand, and whether the understanding of the course content is clear.

4. Learning ability: Evaluate students' learning ability and performance. For example, whether you can finish your homework in time, whether you can think and solve problems independently, etc.

5. Summary and suggestions: According to the results of recording and evaluation, summarize the classroom teaching, and put forward suggestions and suggestions for improving students' learning effect.

Please note that interns should record and evaluate objectively and fairly when writing effect evaluation, so as to provide valuable feedback and reference.