STEM K12 USA

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Scale, Proportion, & Quantity

In considering phenomena, it is critical to recognize what is relevant at different size, time, and energy scales, and to recognize proportional relationships between different quantities as scales change.

Primary School
  • Relative scales allow objects and events to be compared and described (e.g., bigger and smaller; hotter and colder; faster and slower).

  • Standard units are used to measure length.

Elementary