This is a PowerPoint presentation that introduces students to benchmark fractions. Using real world examples, it has children visualizing what benchmark fractions look like and has them compare their mental images to an actual picture. Then it compares the sizes of the benchmark fractions and orders them from least to greatest. During this part of the PowerPoint I have students work in small cooperative groups to order the benchmark fractions, then we check their work with the PowerPoint. Finally it demonstrates where the benchmark fractions fall on a number line.
I just put this together last week, and used it with my class. It was a great lesson that the students enjoyed! I used this with my third graders, but it would be appropriate for 2-5 (a good review for the upper grades).