We teach and assess you. We are responsible for your formation and to sum up your progress. The only way, to date, that has been found to do the job is to set you assignments of some sort and to mark them. Your professional judgements will affect the life-chances of the children that you teach. Similarly for us we sometimes have to make the very difficult decisions when we ask failing students to leave.
Society needs to have confidence in people appointed to professional and other roles.
Some form of examination controls entrance to the professions, usually. You will be responsible for administering examinations around two years from today. You, if you are an EY teacher, will give the child its very first experience of assessment. Which brings me to my other main point. You see its not as if it s only teachers who are interested in the outcome of testing.