Arithmetic gives us tools to smoosh, slide, and stretch numbers. sometimes there's things in the real world we want to smoosh, slide, and stretch in the same way //平滑、滑动、拉伸
Seeing Arithmetic as a type of transformation to make sense of seemingly-wired concepts, like the square root of -1, and visualize the problem in a new way.
- Accumulate: Count up similar quantities (often for tangible items).
- Slide: Shifting a number along a scale (for less tangible things, like temperature). //℃
- Combine: Make a new quantity out of two different ones (like notes in a music chord). //🎵
- Repetition: Performing multiple additions.
- scaling: Making a number grow or shrink all at once.
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