A good article to put on the bibliography is Putcharee Junpeng, "The Development of Classroom Assessment System in Mathematics for Basic Education of Thailand," Procedia 69 (2012): 1965-1972. See http://www.sciencedirect.com/science/article/pii/S1877042812056194.
There is a lot of discussion about assessing teacher effectiveness in the US. One of the most contentious aspects is how (and whether) to include student performance in the assessment. Some aspects about the statistical procedures are discussed here (https://www.researchgate.net/project/Measuring-school-teacher-effectivessness). The Gates Foundation study (Kane et al.) is a widely cited and well thought of study (https://www.gatesfoundation.org/media-center/press-releases/2013/01/measures-of-effective-teaching-project-releases-final-research-report). There are lots of other sources about measuring teacher effectiveness that usefulness will depend on your purpose, but google will help locating most of them.
A different view? We have OFSTED (Office for standards in Education) here in the UK who inspect every maintained school and further education college. There are lots of documents on their website which may interest you as they are looking at how teaching is taught and assessed. Their inspections can close schools if teaching is not up to standard.
The feedback information from the students about the teacher experience should be used to reflect their opinion as a learners in the teacher class whcih is a valuable method to assess the teaching.
Our faculty members, both individually and as colleagues examining their department’s education programs, have found the following activities helpful when undertaking outcome assessment:
Developing expected student learning outcomes for an individual course of study, including laboratory skills.
Determining the point in a student’s education (e.g., courses, laboratories, and internships) at which he/she should develop the specified knowledge and skills.
Incorporating the specified learning outcomes in statements of objectives for the appropriate courses and experiences.
Selecting or developing appropriate assessment strategies to test student learning of the specified knowledge and skills.
Using the results from assessment to provide formative feedback to individual students and to improve curriculum and instruction.
Adjusting expected learning outcomes if appropriate and assessing learning again. Such a process can lead to continual improvement of curriculum and instruction.
Class evaluations and observations supply brilliant feedback concerning student satisfaction and teaching method, except they don’t give the significant information of how much your students are learning. Altering the method you assess student learning can progress our teaching effectiveness, since it gives direct feedback on what works as well as what doesn’t.