The document provides guidance on concept checking vocabulary by asking students questions to confirm their understanding of new words. It emphasizes that questions should check the specific meaning of words, be easy to answer in short responses, avoid using the target language, and focus on the intended vocabulary. Examples demonstrate both correct and incorrect ways to concept check words like "bait", "sensible", "wandered" and "LED indicator". Teachers are advised to use pictures, true/false, either/or and personalized questions tailored to each student's context.