Did you read about B2D linked by OP? This is what Bloom found (from wikipedia):
the average tutored student was above 98% of the students in the control class”.[1]:4 Additionally, the variation of the students’ achievement changed: “about 90% of the tutored students … attained the level of summative achievement reached by only the highest 20%” of the control class.
I don’t think high school can hold a candle to that. All the content in any specialized class can be found online and learned at the leisure of the child rather than praying for a decent teacher that fits the kid.
Did you read about B2D linked by OP? This is what Bloom found (from wikipedia):
the average tutored student was above 98% of the students in the control class”.[1]:4 Additionally, the variation of the students’ achievement changed: “about 90% of the tutored students … attained the level of summative achievement reached by only the highest 20%” of the control class.
I don’t think high school can hold a candle to that. All the content in any specialized class can be found online and learned at the leisure of the child rather than praying for a decent teacher that fits the kid.