This document provides guidance on assessing student understanding through concept checking questions. It discusses the purpose of assessment, developing effective concept questions, and strategies for checking understanding in the classroom. Concept questions should be simple yes/no or one-word answers that check basic elements of meaning without using target language. Effective questions break down language into bits of meaning and turn statements into verifyable questions. The document also stresses the importance of context, clear objectives, and providing informative feedback to students to improve their learning.