TED Talks
Ted: Ted Ed: What's the Difference Between Accuracy and Precision?
When we measure things, most people are only worried about how accurate, or how close to the actual value, they are. Looking at the process of measurement more carefully, you will see that there is another important consideration:...
OpenStax
Open Stax: Physics: Approximation
On many occasions, physicists, other scientists, and engineers need to make approximations or "guesstimates" for a particular quantity. What is the distance to a certain destination? What is the approximate density of a given item? About...
Shmoop University
Shmoop: High School: Number and Quantity: Quantities Hsn q.a.3
Standard HSN-Q.A.3 states: "Choose a level of accuracy appropriate to limitations on measurement when reporting quantities." This page explains what this standard means. Click on 'Sample Assignments' for some quick drills.
Texas Education Agency
Texas Gateway: Measurement
Given investigation quantitative data, students will determine its degree of precision and/or accuracy and causes for uncertainties in measured data.
PBS
Pbs Teachers: Scientific American: The Intimate Machine: Weighing In
Explore the "intelligent floor," which contains sensors that can track movements, and emulate the weighing technique associated with this technology. Explore the relationship between volume and mass and the difference between accuracy...
Math Is Fun
Math Is Fun: Approximate Solutions
Sometimes it is difficult to solve an equation exactly. But an approximate answer may be good enough!
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