| 1. | What kind of decimal is called a repeating decimal
谁能说说什么样的小数叫循环小数？ |
| 2. | A discussion about the nature of some recurring decimals
对某些循环小数的一个性质的讨论 |
| 3. | Which numbers are repeating decimals ? which are not ? why
下面哪些是循环小数，哪些不是，为什么？ |
| 4. | Who can divide the repeating decimals into two groups ? why
师：谁能再将上题中的循环小数分成两类？为什么？ |
| 5. | T : who can divide the repeating decimals into two groups ? why
师：谁能再将上题中的循环小数分成两类？为什么？ |
| 6. | Read aloud the repeating decimals . teacher demonstrates : four point one six six , six repeats
读出上题中的循环小数。师示范： 4 . 166 … …读作四点一六六，六循环。 |
| 7. | The infinite decimals can be divided into two groups : the repeating decimals and the infinite non - repeating decimals
无限小数又可分为循环小数和无限不循环小数两类。 |
| 8. | Use division transformation , the rational number must be expressed by limited decimal or unlimited circulating decimal
利用带余除法公式，给出有理数必可表示为有限小数或无限循环小数的证明。 |
| 9. | Teaching aims : understand the essence of repeating decimals . grasp the method for showing repeating decimals . be able to recognize the repeating decimals
教学目的：理解循环小数的意义，掌握循环小数的表示方法，能正确认识循环节。 |
| 10. | To avoid daily rates with recurring decimals , and the associated rounding complications in calculating the interest , annual interest rates and any changes have therefore to be divisible by 360
为避免日利率附有循环小数及由四舍五入引起的复杂计算，年利率及其变化幅度必须可以被360整除。 |
