The sixth factor is “assessments” (McBer, 2000). Assessments and instructions are inseparable. This is the factor that decides whether effective learning has taken place, which I will address in the latter part of the essay. Effective teachers use different assessment techniques and tools to gauge their students' understanding. Assessments not only measure student understanding, they also allow teachers to improve their teaching. They must also differentiate their assessments based on the cognitive needs of students. Effective teachers use three types of assessment. Diagnostic assessment (DA), widely known as pre-assessment or prior knowledge assessment, is used by teachers to check students' skills, which will be useful for school planning and guidance. 'ID (ASCD website). Formative Assessment (FA) is an ongoing assessment that helps teachers understand gray areas and clear up misconceptions by immediately acting on them. FAs can include both formal and informal means such as written tests, oral questions, quizzes and group discussions. This is not necessarily noted. There are also few modern differentiated FAs such as ThinkDots, Cubing, Tic-Tac-Toe used by formally trained and trainee teachers in IIS. Using these differentiated FAs breaks the monotony of the classroom and students find these differentiated FAs to be interesting activities. The fear of failure is reduced here. Summative Assignments (SA) are nothing but the traditional way of assessing students at the end of the subject/course. Although SAs are important, they do not give students the opportunity to rework them or teachers to support students in constructing the concept. But teachers... middle of paper ... school must be well trained in DI techniques and methods to meet the needs of students. Effective teachers, regardless of the challenges and obstacles that come their way; they always find possible ways for their students to succeed thanks to their power of resilience. To provide effective education, the school, management, environment and most importantly the teachers must be well trained to provide effective education. I conclude by saying that students' hidden potential will be discovered through a teacher's effective teaching strategies, as Carol Ann Tomlinson and Edwin Lou Javius ​​(ASCD website) say: “Classrooms who "teach" operate on the principle that student potential is like an iceberg - most of it is hidden - and the high trust, high expectations and high supportive environment will over time reveal what is hidden”.