Students eagerly raise their hands in response.
This need not be a devastating moment for Joe. Just make sure you let the child know that he has contributed a worthwhile thought. If the question relates to math, perhaps a visual prompt will help. If you're asking for a vocabulary word, give the child the first syllable of the correct word, or provide a response if that is what is required. No matter what the prompt, the main goal is to help students maintain dignity in front of peers and in their own minds.