Curated OER
Rounding Different Lengths
For this rounding off numbers worksheet, students practice rounding off thirty-four numbers to different forms of centimeters and millimeters online. Students check their answers online as they go.
Curated OER
Centimeters and Millimeters
In this centimeters and millimeters worksheet, students learn to use a ruler to measure lines and distances. Students then use the illustrated rulers to measure the lines in centimeters and millimeters.
Curated OER
New Boxes from Old
Ninth graders take a rectangular box (e.g., a cereal box) and cut it up to make a new, cubical box with the same volume as the original. In so doing, they will discover that because the cubical box has less surface area than the...