Hāwera, N. & Merilyn, T. (2011). "Twenty percent free!": So how much does the original bar weigh? Australian Primary Mathematics Classroom, 16(4), 3-7.
Permanent Research Commons link: http://hdl.handle.net/10289/6380
Ngarewa Hawera and Merilyn Taylor describe a rich task based on a real world situation that stimulated a great deal of mathematical reasoning. Their research on how students attempted the task is most revealing.
Australian Association of Mathematics Teachers
- Education Papers