Curriculum placement
Algebra 1. This describes the skill, not a learner estimate.
Choosing units and a sensible precision
Choose units and justify precision in quantitative models
Problem types
- Convert through a chain of units
- Convert between customary and metric units
- Bounds from measurement error
- Convert compound units
- Report a computed quantity to the accuracy of its measurements
- What a reported measurement does and does not tell you
- Find the flaw in a reported measurement
- Name the unit of a rate after a chain of conversion factors
Builds on
- Working in scientific notation
- Converting to a smaller unit
- Converting within one measurement system · Earlier idea
Converting single metric units extends to compound units such as kilometers per hour, using conversion factors.
Leads to
Related skills
- A margin of error from simulated samples · Related idea
A measurement has an error bound, as a sample estimate has a margin of error, and each says how far the true value may be.
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