This is a portion of the Grammer Notebook file available at my store. These 7 slides take students through an introduction, explanation, practice, and review of collective nouns. It includes an imbedded Word document of common collective nouns that 2nd graders can use for practice (and can relate to...). It also includes a whole class independent practice page that can made into a class book (each child picks 4 collective nouns, uses them in a sentence frame, and illustrates their page). The book itself is a great review all year long, but the acitivity can be used for review all year long. Kids love collective nouns and start finding them everywhere to add to their lists and their books.
The Grammar file I have also has nouns, verbs, adjectives, and adverbs.