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Ratios And Proportional Reasoning Representations In Open Educational Resources, Keisha L. Albritton
Ratios And Proportional Reasoning Representations In Open Educational Resources, Keisha L. Albritton
USF Tampa Graduate Theses and Dissertations
This study analyzed Open Educational Resource (OER) textbooks to determine similarities and differences between the resources in relation to the content addressing ratio and proportional reasoning standards. This study also analyzed whether the selected resources provided opportunities for students to engage with the Standards for Mathematical Practice. Data were collected from tasks within the 6th and 7th-grade textbooks from Engage NY, Open Up Resources and Utah Middle School Math Project. Each task was analyzed according to frameworks from Van de Walle (2007), Lamon (2012), Lesh et al. (1988) Tall and Vinner (1981), and Hunsader et al. (2014). The tasks were …