關於《經濟科》的Damand supply

first,demand for teacher will increase because each teacher is responsible to teach a small group of student.The demand curve will shifts to the right.
(it is not related to the law of demand, as law of demand means when price increase, the quantity demand will decrease,vice versa. But in this case the shift of demand curves is due to other factor instead of price)
next,supply of teacher remains unchange.
therefore, the equilibrium price and the equilibrium quantity demanded of teacher will increase.

2007-04-23 13:59:17 補充：
咁你要睇清楚題目,如果條題目有提供到student少左,咁先要答demand for teacher decrease,再因小班教育demand會increase返如果條題目冇提供到小班係因為student少左,then不必答demand decrease,因為小班的原因有好多,eg想改善教育等,呢d情況demand係唔會decreasenote:小心睇題目

學校實行小班教學，
班數增加，
學校對教師需求上升，
所以教師的需求線會向上及向右移。