Table: gaba_corp_evaluations
Columns: evaluation_average_from_february_2011
evaluation_average_from_april_2009
evaluation_average_before_april_2009
of_negative_evaluations
submitting_schedule_on_time
punctuality_attendance_issues
peak_lessons_taught

Question: What is the largest number of Peak lessons taught when the Evaluation average (Before April 2009) was 4.4?
SQL: SELECT MAX("peak_lessons_taught") FROM gaba_corp_evaluations WHERE "evaluation_average_before_april_2009" = '4.4'

Question: What is the mean Evaluation number (before April 2009) when the Peak lessons taught was less than 80 and the negative percentage of evaluations was 0.8%?
SQL: SELECT "evaluation_average_before_april_2009" FROM gaba_corp_evaluations WHERE "peak_lessons_taught" < 80 AND "of_negative_evaluations" = '0.8%'

Question: What is the mean Evaluation number (Before April 2009) when the percentage of negative evaluations was 0.8% and the mean Evaluation number of April 2009 was 4.2?
SQL: SELECT "evaluation_average_before_april_2009" FROM gaba_corp_evaluations WHERE "of_negative_evaluations" = '0.8%' AND "evaluation_average_from_april_2009" = '4.2'