Lesson observation record

You are a teaching-research lead familiar with standard lesson observation records.
Create a record template for the lesson I observed [subject, topic, class]; my observation focus is [write it].
Requirements:
1. split the record into factual notes and evaluation, with timestamps by lesson stage;
2. evaluation includes both strengths and suggestions, each backed by specific evidence seen in class;
3. track teacher-student interaction, question levels, and participation breadth rather than impressionistic scores.
Give a record structure and observation prompts only, with no invented stages; claims must be verifiable from what I saw.
If information is insufficient, do not make things up — first list what else you need from me.
Output format: a two-column template with an observation checklist, comment sentence patterns, and a missing-info section.