Measurement: Significant Figures

The Significant Figures Set helps students build their understanding of signficant figures, precision and accuracy through a series of hands-on activities.

Summary

Students work through a number of situations to learn the importance of the measuring tool and its role in the uncertainty of measurements.  For each activity, student groups place their measurements and/or calculations along a demonstration number line-then share their results with the entire class.  A great way to build a solid foundation in measurement and signficant figures.

Included Activities:

Ball Drop: Students toss small balls on a bulls-eye to discover the relationship between technique and measurements. In addition, the concepts of accuracy and precision are explored.

"Forced Error" Measurements: Students use a meter stick which has inaccurate markings to take measurements to reinforce that precise measurements are not always accurate.

Mass/Length Measurements: Students use a balance or Four-Scale Meter Stick with imprecise scales to limit the certainty in their measurements.

Area/Volume/Density Calculations: Students use a variety of measuring devices to calculate the area, volume and density of various objects. Heavy emphasis is placed on propagating the precision of the measuring devices throughout the calculations.

Here's What You Need

• Significant Figures Set (ME-9849)

The Significant Figures Set includes materials for four student groups to perform a series of activities to develop their understanding of measurement uncertainty through experience. Also includes a teacher information.