Math topic中文

Observing the real world with a mathematical eye

In real-life and scientific/technological contexts, integrating equations and inequalities, functions, transformations of figures, coordinates, sampling and data analysis, experience the mathematization of real situations and form the competency of observing the real world with a mathematical eye.

Practice questions

  1. 1飞机每小时飞行800千米,轮船每小时行80千米,人步行每小时行5千米 (1)轮船的速度是人步行速度的多少倍? (2)你还能提出哪些数学问题?并解答.
  2. 2观察者的位置由远及近变化时,观察景物的范围会( ) A. 由大变小 B. 不变 C. 由小变大