We're providing five days of lessons designed to engage your high schooler in mathematics. This week’s lessons are about precision and accuracy, significant digits, and errors in measurement, which will help them with the Measuring Objects lab. The last lesson continues with ways to convert measurements.
Each lesson has an answer sheet that provides guidance on the lesson and describes the key concept and questions from the lesson. Use this sheet to check your answers. The student sheet can be printed and completed by the student, or the student can write his or her answers on a blank sheet of paper.
You will also need:
- Ruler and protractor (Download a printable ruler and protractor.)
- Scale (can use a food scale set to grams or a bathroom scale)
- Hint: If using a bathroom scale set to kilograms, find the grams by dividing the number by 1,000. If using a bathroom scale set to pounds, find the grams by dividing the number by 454.
- Block of wood, metal, or other solid uniform material in the shape of a rectangular prism
Activity 1: Precision and Accuracy
The terms precision and accuracy are often used interchangeably in everyday speech, but they have distinct meanings in mathematics.
Use this lesson to compare the precision and accuracy of measurements and learn about tolerance.
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