TMW Media
Significant Figures in Calculations
This program covers the very important topic of significant figures in chemistry calculations. It is important to understand that the number of decimal places in the calculated answer to a problem should take into account how many...
Curated Video
Choosing the Right Measuring Tool
In this video, the speaker explains how to choose the appropriate measurement tool by comparing the size of objects and units. They demonstrate this by using various tools such as rulers, yardsticks, measuring tapes, and inch rulers to...
Khan Academy
Khan Academy: Comparing Lengths
Learn how to use a ruler to compare the lengths of different objects such as rectangles and triangles. [3:06]