The vocabulary and concepts included are: digits, numbers, value, place value, least/greatest, number forms, operations, array, multiples, inverse operations, fact families, estimate, rounding, compute, squared number, properties, fractions, mixed numbers, and decimals.The 81 PowerPoint slides are a combination of teaching (lecture style) and interactive slides (matching exercises, unscramble the vocabulary, fill in the missing numbers, etc.) Also included is a Directions page for using PowerPoi