Moreover, schools vary substantially in the backgrounds of the students they serve, and conventional statistical methods tend to break down when
we compare teachers serving very different subsets of students.
In that case, it is essential to
compare teachers serving similar children to draw any valid causal conclusions.
Not exact matches
Nevertheless, when we conducted a survey asking long -
serving teachers to rate their schools on a number of criteria in the spring of 1998
compared with the spring of 1995 (immediately before charter schools opened in Arizona), the results showed clear perceptions of improvement since the advent of charter competition, with the greatest gains in the districts with the most charter schools.
Using the NY State Assessments in evaluations allows us to meaningfully
compare teacher performance statewide, which helps policymakers know which students need help or which
teachers serving particular student subgroups may need additional support.
We also found that across grade levels once a
teacher has
served in one school for 12 years or more, they are much more likely to remain,
compared with peers with less tenure at their present schools.
Thirty - four percent of schools
serving a high proportion of minority students experience
teacher shortages in one or more subject areas
compared to only 18 percent of low minority schools.
Comparing Florida and Utah Education Needs Caution, Kim Burningham, October 24th, 2011, Burningham is a member of the Utah State Board of Education, District 5, he
served for 15 years in the Utah Legislature and was an educator for many years and was twice named Outstanding
Teacher of the Year http://utahpubliceducation.org/2011/10/24/
comparing-florida-and-utah-education-needs-caution/
«If you look at the survey and number of
teachers who didn't like the program, it's a very small number [around 400
teachers]
compared to the 10,000 classrooms it's
served in.
This problem can be particularly acute when we
compare teachers in different schools
serving very different populations of students.
These sensitivity checks, and the possible stratification of
teachers into sub-groups
serving similar students, complicate value - added analysis and may not be congruent with policymakers» wish to
compare all
teachers in a district.
In sum, efforts to
compare teachers working in schools that
serve children from widely varied backgrounds are vulnerable to bias.
Reflecting the diversity of the students they
serve, 39 percent of Washington's charter public school
teachers are people of color,
compared to 13 percent at public schools statewide.
This study
compared the effectiveness of two
teacher leaders
serving as facilitators of teams of
teachers: one
teacher leader was appointed by the school principal, the other facilitator volunteered.