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Direct linkThacker, Ian – Research in Mathematics Education, 2020
The goal of this design-based research study was the creation and evaluation of a mini-unit intended to foster perceptually grounded understandings of the concept of slope in middle-school students. Central to this unit was an innovative device designed to create a productive pedagogical space between student intuition for steepness and formal…
Descriptors: Mathematical Concepts, Concept Formation, Secondary School Mathematics, Middle School Students
Cheng, Ivan; Ainsworth, Andrew T.; Appelrouth, Scott A.; Xie, Jimmy; Moreno, Callie – AERA Online Paper Repository, 2018
This paper discusses the implementation and evaluation of an innovative professional development program that supported 8th grade mathematics teachers in designing learning activities that assisted students in developing a conceptual understanding of mathematics. Funded by an Investing in Innovation (i3) grant from the U.S. Department of…
Descriptors: Mathematics Instruction, Grade 8, Faculty Development, Mathematics Teachers
Liu, Ou Lydia; Ryoo, Kihyun; Linn, Marcia C.; Sato, Elissa; Svihla, Vanessa – International Journal of Science Education, 2015
Although researchers call for inquiry learning in science, science assessments rarely capture the impact of inquiry instruction. This paper reports on the development and validation of assessments designed to measure middle-school students' progress in gaining integrated understanding of energy while studying an inquiry-oriented curriculum. The…
Descriptors: Energy, Science Education, Psychometrics, Case Studies
