...–whole relationships and fraction operations. Research limitations/implications The study examined only one year of fraction instruction, with teachers having limited experience. Participation across multiple years and varied professional learning communities (PLCs) with experienced reflection teams...

... of Japan (NIER). Design/methodology/approach The authors randomly selected 1,000 elementary schools and 1,000 middle schools and 500 high schools in Japan. Survey items are methods of LS, and indicators of building professional learning communities (PLC) through LSs, close communication between...