1. Measuring Note Cards Purpose: To measure the dimensions of an object as accurately and precisely as possible and to apply rules for rounding answers calculated from the measurement. Questions: 1.What device are you using to measure length? 2.What metric unit are we going to use to measure the index card? 3.What does each marking on this device read? 4.How many places after the decimal should your answer have? 5.Use a metric ruler to measure in centimeters, the length and width of an index card as accurately as you can. (Measure length as long side, width as short side Length = Width =

2. Measuring Note Cards Class Data: Actual Length: 15.24 cm Actual Width: 10.16 cm Length (cm)Width (cm) 15.20 15.18 15.26 15.21 15.20 15.02 15.19 15.21 15.02 15.21 15.19 15.10 15.21 15.30 15.20 15.10 15.21 10.21 10.12 10.20 10.19 10.20 10.02 10.19 10.10 10.14 10.10 10.21 10.19 10.20 10.02 10.11 10.19 10.21

3. Measuring Note Cards Questions (cont.) 1.Define accuracy: 2.Explain how accurate your length and width measurements are. 3.Define Precision: 4.Explain how precise the classes length and width measurements are.