This zipped file is a NUMBER and OPERATIONS POWERPOINT SLIDE SHOW for grades 3-4.
The 81 slides are a combination of teaching (lecture style) and interactive slides (matching exercises, unscramble the vocabulary, fill in the missing numbers, etc.) 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.
Also included is a Directions page for using PowerPoint and for using the (wonderful) Pen Option of PowerPoint.
The preview file is pages 1-10 of the Slide Show so that you can "Try before you Buy".