Using “有” for Time Periods

Link to PPT

New words:
个 : the most common Chinese measure words: could be used with variety of nouns like person， month， week, ex: 一个月， 一个人， 一个学生， 一个老师，second most common measure word：只 （for animals）
年： year

一年有十二个月。One year has 12 months.
一年有五十二个星期。One year has 52 weeks.
一年有三百六十五天。One year has 365 days.
一个月有三十天。One month has 30 days.
一个月有四个星期。One month has 4 weeks.
一个星期有七天。One week has 7 days.