Greg Kushnir
When Robert J. Marzano conducted a review of the average state or provincial curriculum, he confirmed what teachers already knew: it is not possible to teach all curricular outcomes to every child in a meaningful way in the time allotted. Dr. Marzano determined that on average a student moving through a K–12 education system took 14 subjects which contained 255 standards. These standards contained 3,500 indicators, which he concluded would require an additional 10,000 hours of school to ensure learning for every student.
