Trends in US Teaching Force
The above graph actually captures critical turning points in time. The average age of a teacher may have indeed increased from 1987 to 2007, but this trend would now reverse. In 1987, the age distribution is much narrower with a mode (most common age) of 41. In 2007, the distribution became much broader with a new mode at 55. But in 2011, the mode has dramatically dropped to 30. The younger age, of course, correlates with teachers in 2011 having less experience than those in 1987:
In the United States, during 1987-2011, the number of teachers grew twice as fast as the students. In the Philippines, using the period 2004 to 2010, the number of teachers has grown by 11.4%, which is not that large compared to how fast the number of pupils has increased: 8.2%. Thus, there is no surprise that in the Philippines the pupil to teacher ratio has remained very high.
With regard to age, the distribution for teachers is obviously grayer:
Nearly half of elementary school teachers are more than 50 years old, with 16% above 60 in 2009.
There are similarities and there are differences. But one data point that applies only to the Philippines is shown in the following table: