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Accuracy and Precision In Measurements
Kathy Dunne

Unit created on 10/19/1999 EST.
Last modified 11/11/1999 3:45:00 PM EST.

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Fundamental Understandings (help)

Distinguish between the precision and the accuracy of a measurement. Determine the number of significant figures in a measurement. Express the result of a mathematical operation to the proper decimal place (addition and subtraction) or to the proper number of signification figures (multiplication and division). Be able to round off measurement to a specified number of significant figures. Convert a very large or very small number to scientific notation. Carry out mathematical operations with numbers expressed in scientific in notation.

Technology ISTE Standards (info) 

Select and apply technology tools for research, information analysis, problem-solving, and decision-making in content learning.

Information Literacy Standards (info) 

Relevance (help)

Measurement is the collection of quantitative data. The proper handling and interpretation of measurements are essential in science. Measuremnts contain a unit and some inherent error. This unit discusses ways to recognize, estimate and report the errors that are always present in measurements.

Assessment (help)

Open discussion. On-line quizzes. Laboratory Performance. Tests.

Components (help)

Lesson I: Accuracy and Precision http://atech.org/faculty/dunne/Lessons/math/Lesson1/acc1.htm Lesson II: Significant Figures http://atech.org/faculty/dunne/Lessons/math/Lesson2/sigfig1.htm Lesson III : Significant Figures and Calculated Quantities http://atech.org/faculty/dunne/Lessons/math/LessIII/lesson3.htm Lesson IV: Scientific Notation http://atech.org/faculty/dunne/Lessons/math/LessIV/lesson4.htm

URLs (help)


Workforce Competencies (info) (help)

Standard Title: NUMERIC PROBLEM SOLVERS (3.3) Students use numeric operations and concepts to describe, analyze, disaggregate, communicate, and synthesize numeric data, and to identify and solve problems.

Copyright 1997-2003
Career Connection to Teaching with Technology
USDOE Technology Innovation Challenge Grant
Marshall Ransom, Project Manager
All rights reserved.

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