7.a fraction whose numerator is an integer and whose denominator is an integer plus a fraction whose numerator is an integer and whose denominator is an integer plus a fraction and so on.
9.Imagine a ratio where the numerator measures the magnitude and frequency of strategic transformation and the denominator reflects the time, expense, and emotional energy required to effect that transformation.
10.Teaching Aids: To know the essence of fractions; To know denominator, numerator, the units of fraction, To know the essence of the whole; Train their espial ability and abstract epitome ability.