Hanns M. Botz

A 3rd grade teacher at Encino Elementary in 2006

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 2003-04 through 2009-10 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.

Math effectiveness

Least effective
Most effective

English effectiveness

Least effective
Most effective
See how this teacher would change under different statistical models »

About this rating

The red lines show The Times’ value-added estimates for this teacher. Botz falls within the “less effective than average” category of district teachers in math and within the “average” category in English. These ratings were calculated based on test scores from 33 students.

Because this is a statistical measure, each score has a degree of uncertainty. The shading represents the range of values within which Botz’s actual effectiveness score is most likely to fall. The score is most likely to be in the center of the shaded area, near the red line, and less likely in the lightly shaded area. Teachers with ratings based on a small number of student test scores will a have wider shaded range.

The beige area shows how the district's 11,500 elementary school teachers are distributed across the categories.

Botz's LAUSD teaching history

Years used for value-added rating. See FAQ for details.

Hanns Botz's Response:

I have no idea about the very small sample size (33). Hence, the standard error of measure results in a greater range (area) in which the true score lies.

I may have been the " teacher of record" in 20o6, but not the teacher in deed. I left the classroom in 2006 to assume a position with LAUSD in which I was an advisor in the state's new teacher induction program. My students were taught by another teacher or teachers.

I thoroughly enjoyed my 27 years of service as a classroom teacher with LAUSD and remain so joyful to have successfully taught hundreds of students during my career.


Hanns Michael Botz, Ed.D.


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.

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Los Angeles Teacher Ratings, the Los Angeles Times' database of value-added scores for Los Angeles Unified elementary schools and teachers.

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