Scientific studies regarding the Montessori method are mostly positive,[6] with a 2017 review stating that "broad evidence" exists for its efficacy.[
A range of practices exist under the name "Montessori", which is not trademarked. Popular elements include mixed-age classrooms, student freedom (including their choices of activity), long blocks of uninterrupted work time, specially trained teachers, and prepared environment. Scientific studies regarding the Montessori method are mostly positive,[6] with a 2017 review stating that "broad evidence" exists for its efficacy.[7]