Analyzing Teacher Effectiveness using Value Added Data

The Los Angles Times published an article describing the practice of applying value-added data for the evaluation and comparison of teacher performance. The article "How the teachers were evaluated", (Source: LA Times, August 15, 2010), described the statistical method of estimating teacher effectiveness using student test scores. Student's prior test scores are used to project future performance. The rate of change between the student's test scores compared to the projected results determines the value added from the teacher.

The below graphs were published in the LA times to illustrate the value added practice.

Student 1 - Results exceed expectations

Student 2 - Results fall short of expectations

The practice uses value-added based upon student growth to determine teacher impact.

What is the purpose of a D?

The New York Times published an article titled, "Little as They Try, Students Can't Get a D Here" (August 7, 2010) which described a recent no D grading policy adopted by school board of Mount Olive Public School District in New Jersey. This new policy is an attempt to combat against the practice of grade inflation to raise standards and motivate students to work harder.

The school district is developing a system to help struggling students achieve by providing additional time, three days, to make-up the assignment for a C. Additionally, the school will communicate with parents when students struggle and can provide interventions such as extra-help classes, peer tutoring and evening classes. One must wonder, does this mean that C is the new D?

Source http://www.nytimes.com/2010/08/08/education/08grades.html?_r=1&ref=education