This is a 20 slide PowerPoint presentation which first reviews place value of whole numbers, then introduces rounding. There are several "teaching slides" followed by several practice slides. The practice slides contain multiple choice questions suitable for use in classrooms with clickers. As an added bonus, the slides are already tagged for users of Insight 360.
There is also a worksheet included which can be used to assess the students comprehension.
The imaged used in the presentation are copyright by Away With The Pixels whose store can be found here: