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Download full textO'Dell, Jenna R.; Rupnow, Theodore J.; Cullen, Craig J.; Barrett, Jeffrey E.; Clements, Douglas H.; Sarama, Julie; Van Dine, Douglas W. – North American Chapter of the International Group for the Psychology of Mathematics Education, 2016
In this study we investigated eighth grade students' informal justification for the circle area formula to expand accounts of the measurement knowledge for middle-school age students. Data were collected during three paired interviews of a three-year teaching experiment. Here we describe schemes students exhibited as they operated on measurement…
Descriptors: Grade 8, Measurement, Knowledge Level, Middle School Students
