This article identifies and unpacks three key decision points in a systematic mixed research synthesis, a mixed methods approach to research synthesis. The research community has increasingly recognized the value of synthesis studies in expanding our understanding of phenomena. Mixed-methodology broadly has also gained ground as a pragmatic…

Researchers examined the effects of previewing on preschoolers' comprehension of narrative and educational content in a television program. Children (3-5 years, N = 107) watched an educational math episode in one of three conditions: no-preview control, education-focused expository preview, or story-focused narrative preview. A main effect of…

In early spring 2020 the vast majority of US colleges and schools closed for the year due to COVID-19 with no clear direction on when or how these institutions will reopen for in-person instruction. School closures and the associated health concerns haulted large scale admissions testing and required alternative models such as remote proctoring at…

Records of online collaborative mathematical activity provide us with a novel, rich, searchable, accessible and sizeable source of data for empirical investigations into mathematical practice. In this paper we discuss how the resources of crowdsourced mathematics can be used to help formulate and answer questions about mathematical practice, and…

This paper introduces two central questions (1) what are available methodologies for making claims about mathematical practice and (2) when and how do claims about mathematical practice influence mathematics instruction. To motivate these questions, we critically analyze the relationship between research into mathematicians' practice and the…

In case library learning, an instructional method that promotes case-based problem solving, learners often struggle with indexing cases. Poor case indexing may hamper retention and retrieval of cases, hindering the construction of mental libraries in learners. To address this issue, the authors developed two indexing prompt types,…

Although many psychology departments and instructors are aware of the "American Psychological Association Guidelines for the Undergraduate Psychology Major Version 2.0," they are often less aware of the means by which to assess student mastery of the recommended goals. Our purpose is to discuss general principles for assessment, offer a…

Igniting excitement for physics in our students is a goal of every instructor. In this paper, we discuss a unique example of the concept of density, a subject that is rarely viewed as intriguing by students. By combining a problem involving dinosaurs and an effective density, our students' interest is often captured through calculating an…

This commentary reinterprets the findings of Macalalag, Johnson, and Lai's study in terms of the substantive content of and ways of initiating professional development for teaching socio-scientific issues. First, regarding professional development content, we introduce the concept of SSI-PCK, which refers to pedagogical content knowledge for…

In this paper we introduce the concept of contextual mitigating factors (CMFs) as an analytical tool for interrogating the contextual landscapes that situate one's research. While we understand that much work has been done on the importance of identifying context in research programs, we continue to stress the importance of developing contextually…

When first learning how to write mathematical proofs, it is often easier for students to work with statements using the universal quantifier. Results that single out special cases might initially come across as more puzzling or even mysterious. In this article we explore three specific statements from abstract algebra that involve the number…

We propose a semiquantitative experiment that associates video-analysis and ordinary procedures of experimental physics whose objective is to investigate the dual character of Oobleck, a mixture of cornstarch in water, which appears thicker or thinner depending on how it is physically manipulated. The results are presented and interpreted taking…

This article explores the German discourse of Early Childhood Education and Care (ECEC) as it has emerged and changed over time. The conceptual elements of the triad of care, child raising and education ("Betreuung," "Erziehung" und "Bildung") are described and illustrated by salient points in the development of…

In this article, the authors argue that teachers need to possess appropriate understanding and diverse pedagogies to successfully move learners from additive to multiplicative thinking. Herein, they offer five pedagogical strategies that teachers can use to help students make this transition. Some of the challenges of learning multiplicative…

Research on statistical education in childhood is recent in Brazil. The research has been mainly driven by curriculum reforms and the creation of research groups that investigate teaching, learning, and teacher education practices. The present paper emerges from this scenario and has the aim of investigating practices of creative insubordination…