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Kellems, Ryan O.; Eichelberger, Carrie; Cacciatore, Giulia; Jensen, Mikaela; Frazier, Brynn; Simons, Kalee; Zaru, Mai – Journal of Learning Disabilities, 2020
The purpose of this study was to examine the effectiveness of video-based mathematics instruction for seven middle school students with specific learning disability (SLD), using an augmented reality-based training package. The dependent variable was the percentage of steps students performed correctly to solve each type of mathematics problem. The…
Descriptors: Video Technology, Computer Assisted Instruction, Computer Simulation, Mathematics Instruction
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Izsak, Andrew; Jacobson, Erik; de Araujo, Zandra; Orrill, Chandra Hawley – Journal for Research in Mathematics Education, 2012
Researchers have recently used traditional item response theory (IRT) models to measure mathematical knowledge for teaching (MKT). Some studies (e.g., Hill, 2007; Izsak, Orrill, Cohen, & Brown, 2010), however, have reported subgroups when measuring middle-grades teachers' MKT, and such groups violate a key assumption of IRT models. This study…
Descriptors: Psychometrics, Professional Development, Item Response Theory, Knowledge Base for Teaching