While standards-based grading (SBG) has been implemented in school districts across the country, it faces two major challenges. As research on standards-based grading is limited, many practices under SBG are not substantiated by empirical evidence. Meanwhile, not all teachers are well prepared to implement SBG in the classroom. The lack of…

The adoption of "College and Career Ready" standards--including Common Core State Standards--aims to raise academic expectations for students nationwide. Meeting these outcomes requires shifts in teaching, which, in turn, requires developing measures for the observation, assessment, and support of new kinds of instruction. This essay…

This article describes the two types of reasoning in fraction conceptions that students often use, "gap" and "missing piece," and one that the authors aspire their students to reach, "residual." Each of these types of reasoning are underpinned by a different conception of fractions. Students who use "gap…

Understanding negative numbers can be challenging for many students, as these concepts may seem less tangible than counting objects, which are commonly represented by positive numbers. In addition, the multiplication of two negative numbers resulting in a positive might appear inconsistent and puzzling to young learners who are used to seeing the…

"Geometry--Do" is a textbook about plane geometry. It will be divided into two volumes, "Geometry without Multiplication: White through Red Belt," and "Geometry with Multiplication: Blue through Black Belt. "The white- and yellow-belt chapters are neutral geometry; the remainder of "Volume One" and all of…

Classroom assessment research in the United States has shifted away from the examination of teacher-made tests, but such tests are still widely used and have an enormous impact on students' educational experiences. Given the major shifts in educational policy in the United States, including the widespread adoption of the Common Core State…

As a growing number of K-12 school districts and the Common Core State Standards (CCSS) require educators to blend educational technology into the curriculum, teachers struggle with effective integration practices. Short-term professional development alone fails to support teachers with helpful approaches. To achieve success, educators need…

Virginia governor Glenn Youngkin and his administration want to raise the bar for students to pass the state's standardized tests "from the lowest in the nation to the highest in the nation" by next spring. His goal is to close the "honesty gap" between the 79 percent of Virginia students who pass the state's tests and the 39…

Area models are an important strategy for representing and solving multiplication problems under the Common Core State Standards for Mathematics (NGA Center and CCSSO 2010). The hands-on task presented in this article, featuring differentiation and open-ended learning, sets up students to discover area models for themselves. Organized around…

A problem-based learning activity focusing on the human impact on the environment and the importance of sustainable development is presented. The activity revolves around a mysterious island where the civilization is on the blink of extinction, prompting students to investigate how human behavior, ecosystems, resources, and natural balance…

Historical fiction is a powerful genre for inviting children into meaningful conversations centered on the lived experiences of others. Historical inquiry immerses readers in interdisciplinary research experiences and complements language arts Common Core State Standards that call for a balance of fiction and non-fiction text. Antiracist lenses…

Renee Hobbs argues that schools must teach students how propaganda works so that they can better understand the messages they see around them. In an interview with Kappan editor Rafael Heller, she describes how propaganda -- and instruction about it -- has evolved over time. Although there have been periods where it was discussed extensively in…

In this article, the author describes strategies to support students in conjecturing in ways that promote their agency. Conjecturing involves justifying (i.e., a practice that promotes epistemic agency and engages students in mathematical reasoning to defend their claims; Bieda & Staples, 2020) by which a conjecture becomes proven, modified,…

A new classification for semantic structures of one-step word problems is proposed in this paper. The classification is based on illustrations of word problem situations in Common Core State Standards (CCSSM, 2010) and related historical studies (e.g. Weaver, 1973, 1979, 1982), as well as conceptual elaborations of embodied and grounded nature in…

This article was adapted from the E. L. Thorndike Address that I delivered at the August, 2019 meeting of the American Psychological Association in Chicago. I trace my career as an educational psychologist in the context of the enormous changes, both theoretical and societal, that occurred during my years as an active researcher. Reading, the…