After practicing the Alphabet and word building, children must learn and practice art of sentence forming. The three boxes in the series are a great and fun way for children to learn and practice making complete sentences step –by- step. Build A Sentence Part 1 introduces children to the two important parts of a sentence; Subject and Predicate. Children build tons of sentences, no matter how silly their meaning, by joining given large Subject and Predicate Cards in different combinations. It includes 30 large Subject cards and 30 large Predicate cards and an Activity Guide.