Oral and written statement of result

Conclusions
Classroom observation is a science and must be approached according to a specific method. Random observation without any guidance will not provide accurate data with actionable insights. The purpose of these observational frameworks is to provide an evaluation method for determining if classroom instruction meets up to established standards. These models have been tested and shown to reliably correlate with student outcomes, indicating they are a reliable metric for gauging instruction proficiency.
Keep in mind that different frameworks might be useful for different purposes. There is no reason why multiple observational models cannot be implemented at different times, depending on which specific portion of the instructional process you want to focus on.