Strand I
Construct New Scientific and Personal Knowledge


Science/Strand I
Content Standard 1
All students will ask questions that help them learn about the world; design and conduct investigations using appropriate methodology and technology; learn from books and other sources of information; communicate findings of investigations using appropriate technology. (Constructing)


Science/Strand I/Content Standard 1
High School


Science/Strand I/Content Standard 1/High School
Benchmark 3
Recognize and explain the limitations of measuring devices.

Benchmark Clarification

In any investigation, measurements are limited by the devices used and the skill of the experimenter. Students should recognize and be able to explain the following factors affecting measurement:

  • Uncertainty is the estimation of a unit beyond the smallest unit of measurement available on a device
  • Error is the amount of difference between an accepted value and a measured value
  • Range is the difference between the highest and lowest measured values
  • Tolerance is the range of uncertainty allowed as determined by a measuring device
  • Accuracy is how close a measurement is to an accepted value
  • Precision is how well measurements are reproduced

Key Concept / Real World Context / Resources


Science/Strand I/Content Standard 1/High School/Benchmark 3
Key Concept

  • Uncertainty
  • Error
  • Range
  • Tolerance
  • Accuracy
  • Precision

Balance, measuring tape, thermometer, graduated cylinder, electronic measuring devices.


Science/Strand I/Content Standard 1/High School/Benchmark 3
Real World Context
Designing an experiment that uses quantitative data


Science/Strand I/Content Standard 1/High School/Benchmark 3