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...
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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