## Unit 7 Measurement and Calculations

**Resources**

**Learning Objectives**

1. Identify and use SI units in measurement and calculations.

2. Measure quantities using appropriate units for measurement (i.e., grams, meters, liter, second, etc.)

3. Convert from one unit to another given a conversion factor using dimensional analysis (factor-label method).

4. Utilize scientific notation to express numerical measurements.

5. Explain that all measurements have some amount of error or uncertainty and to compensate for this scientists use

significant figures.

6. Distinguish between accurate and precise measurements.

7. Identify the number of significant figures in a measurement and express the measurement properly in scientific notation.

8. Round numbers to the correct number of decimal places or significant figures.

9. When calculating a sum or difference, determine the correct number of decimal places in the answer.

10.When calculating a product or quotient, determine the correct number of significant figures in the answer.

**Powerpoint**

- Scientific Measurement SG (measurement using a variety of devices)
- The SI (metric) System SG (Liters and meters and grams Oh my!)
- Metric Conversion Practice SG (converting units using dimensional analysis and conversion factors)
- Significant Figures SG (reporting measurements and calculations correctly)

**Assignment Sheets and Keys**

**Video**

- Check out the video page for programs on measurement, significant figures and converting metric (SI) units. Click Here