The Writer's Circle is a useful resource, and I heartily recommend that you check it out some time. It contains stuff like this. Who hasn't wondered what a group of peacocks or crocodiles or goldfish is called?
Demonstrate command of the conventions of standard English grammar and usage when writing or speaking. Use collective nouns (e.g., group). noun anchor chart. Kids could make these to differentiate types of nouns ( common, proper, possessive)