Boddu - Classroom Assessment Techniques (CATs) are strategies to know how well students are comprehending key points in a class. Generally, four common types of testing in class teaching can be used - diagnostic, formative, benchmark (or interim), and summative. They allow teachers to make adjustments to a lesson based on students' needs and aspirations. It is advisable to ask questions, create assignments, create class tests, assess group work and involve students in debates and discussion. It is also important to Identify the student level of knowledge, skills, and understanding and build up a clear picture of the student and his or her interests.