Answer key

From Teflpedia

An answer key (/ænsə ki:/) gives a list of key responses to test items within a test.

They are often found at the back of textbooks, and/or in the teacher’s book.

Often textbooks are produced with and without an answer key.

It’s often OK to give the students the answers to check themselves as the focus is on the process of answering the questions not the product that is the answers.