Have you ever wondered What Makes a Good Mathematics Lesson?For many years, this has been a topic of conversation between American mathematics educators Douglas Corey and Blake Peterson, and their Japanese colleagues Hiroyuki Ninomiya, Kazuhiko Soma, and Susumu Kunimune. This conversation led these Japanese mathematics educators to articulate “key considerations” that should be addressed when preparing a good mathematics lesson and the “criteria” that can be used as guideli...

Have you ever wondered What Makes a Good Mathematics Lesson?For many years, this has been a topic of conversation between American mathematics educators Douglas Corey and Blake Peterson, and their Japanese colleagues Hiroyuki Ninomiya, Kazuhiko Soma, and Susumu Kunimune. This conversation led these Japanese mathematics educators to articulate “key considerations” that should be addressed when preparing a good mathematics lesson and the “criteria” that can be used as guideli...