Some schools in the UK are adopting English translations of a grade school math textbook from Shanghai. The book appears to be designed to work with a specific teaching approach, the only specifics given in the NY Times article being:
Students explain concepts to other students.
The class doesn't move forward until everyone understands.
Does anyone have any more detailed info, such as sample pages? Opinions or data on how well this works compared to standard modes of instruction in the UK and US? Is it similar to what we refer to at the college level as "active learning" or "active engagement?"