A 3rd grade teacher at Normandie Avenue Elementary in 2009
These graphs show a teacher's "value-added" rating based on his or her students' progress on the California Standards Tests in math and English. The Times’ analysis used all valid student scores available for this teacher from the 2002-03 through 2008-09 academic years. The value-added scores reflect a teacher's effectiveness at raising standardized test scores and, as such, capture only one aspect of a teacher's work.
Compared with other Los Angeles Unified teachers on the value-added measure of test score improvement, Grzybowski ranked:
- Less effective than average overall.
- Less effective than average in math. Students of teachers in this category, on average, lost about 4 percentile points on the California Standards Test compared with other students at their grade level.
- Least effective in English. Students of teachers in this category, on average, lost about 7 percentile points on the California Standards Test compared with other students at their grade level.
Grzybowski's LAUSD teaching history
2002-03 through 2008-09 academic years
- Normandie Avenue Elementary, 2009 - 2006, 2003
Nancy Grzybowski's Response:
The Rand Corporation itself has denounced VAM as unreliable in judging teacher effectiveness using the California Standards Test, as the CST is not a vertically scaled test, does not measure student growth from year to year, and is particularly unstable for students at the highest and lowest ends of the academic spectrum. The researchers also noted that "it is impossible to fully separate out the influences of students' other teachers, as well as school conditions, on their apparent learning." The fact that my students excel in subsequent years is proof that I did my job, not vice-versa. Former education secretary, Diane Ravitch states that people who judge teachers solely by their test scores know nothing else about education. Fortunately, the parents at my school are smart enough to know when their children are learning.
The Times gave LAUSD elementary school teachers rated in this database the opportunity to preview their value-added evaluations and publicly respond. Some issues raised by teachers may be addressed in the FAQ. Teachers who have not commented may do so by contacting The Times.