Eliciting Algebraic Reasoning with Hanging Mobiles

Publications

How algebraic reasoning can be fostered within the important big idea of equivalence is demonstrated using hanging mobiles. A concrete-representational-abstract approach is used, without any formal algebraic symbolism, to elicit algebraic reasoning and higher-order thinking.

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Preparing Teachers to Engage Rural Students in Computational Thinking through Robotics, Game Design, and Culturally Responsive Teaching

Publications

This article examines teacher preparation and teacher change in engineering and computer science education. We examined culturally responsive teaching self-efficacy (CRTSE), culturally responsive teaching outcome expectancy (CRTOE) beliefs, and attitudes toward computational thinking (CT) as teachers participated in one of three treatment groups: robotics only, game design only, or blended robotics/game design. Descriptive data revealed that CRTSE gain scores were higher in the robotics only and blended contexts than in the game design only context. However, CRTOE beliefs were consistent

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Relationship of Middle School Student STEM Interest to Career Intent

Publications

Understanding middle school students’ perceptions regarding STEM dispositions, and the role attitudes play in establishing STEM career aspirations, is imperative to preparing the STEM workforce of the future. Data were gathered from more than 800 middle school students participating in a hands-on, real world application curriculum to examine the relationship of the students’ interest in STEM and their intentions to pursue a career in a STEM field. Among the middle school students who completed surveys for the MSOSW project, 46.6% expressed a desire to pursue a career in STEM at the time of the

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Modeling and Simulation: How Everything seems to Form and Grow

Publications

The ideas in this article resulted from many years of research in engineering, physics, computer, and cognitive sciences, as well as teaching experience in college and secondary schools. While its main purpose is to discuss the universality of modeling and simulation process and its pedagogical use in teaching, there are several conclusions to be drawn.

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Epistemological, Psychological, Neurosciences, and Cognitive Essence of Computational Thinking

Publications

The construct of computational thinking (CT) was popularized a decade ago as an “attitude and skillset” for everyone. However, since it is equated with thinking by computer scientists, the teaching of these skills poses many challenges at K-12 because of their reliance on the use of electronic computers and programming concepts that are often found too abstract and difficult by young students. This article links CT – i.e., thinking generated and facilitated by a computational device – to our typical fundamental cognitive processes by using a model of mind that is aligned with research in

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The Essence of Computational Thinking

Publications

A decade of discourse to capture the essence of computational thinking has resulted in a broad set of skills whose teaching continue to pose challenges because of the reliance on the use of electronic computers and programming concepts. This article not only links computational thinking skills to fundamental cognitive competencies but also describes pedagogical tools that have proven effective in teaching them at early ages.

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Barcoding Life's Matrix: Engaging Students as Citizen Scientists in the Barcode of Life Initiative

Publications

Discovery-based science education represents a structured alternative to open-ended forms of hands-on inquiry that is now being employed in a number of secondary and post-secondary settings to address science education reform agendas. In the context of molecular life science education, this particular form of instruction links domain knowledge, laboratory methods, and bioinformatics (or computational biology) within the framework of a complete and integrated analytic workflow that culminates in a tangible scientific output and a bona fide contribution to a particular body of scientific

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Growing Plants and Scientists: Fostering Positive Attitudes toward Science among All Participants in an Afterschool Hydroponics Program

Publications

This study examines an out-of-school time program targeting elementary-aged youth from populations that are typically underrepresented in science fields (primarily African-American, Hispanic, and/or English Language Learner participants). The program aimed to foster positive attitudes toward science among youth by engaging them in growing plants hydroponically (in water without soil). Participants’ attitudes toward science, including anxiety, desire, and self-concept, were examined through pre-post survey data (n = 234) over the course of an afterschool program at three separate sites. Data

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Social Justice Driven STEM Learning (STEMJ): A Curricular Framework for Teaching STEM in a Social Justice Driven, Urban, College Access Program

Publications

This article presents the curricular framework for a social justice driven STEM curriculum (i.e., STEMJ) within an out-of-school time program for Boston Public high school students (i.e., College Bound) at Boston College. Starting with a discussion of the authors’ ideological positionality within critical social justice discourses, the authors share how Bronfenbrenner’s (1994) General Ecological Model provides a conceptual framework for operationalizing social justice inquiry with and through STEM. Positioning this curriculum within the College Bound program’s overall design gives readers a

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STEM Pathways: Examining Persistence in Rigorous Math and Science Course Taking

Publications

From 2006 to 2012, Florida Statute §1003.4156 required middle school students to complete electronic personal education planners (ePEPs) before promotion to ninth grade. The ePEP helped them identify programs of study and required high school coursework to accomplish their postsecondary education and career goals. During the same period Florida required completion of the ePEP, Florida’s Career and Professional Education Act stimulated a rapid increase in the number of statewide high school career academies. Students with interests in STEM careers created STEM-focused ePEPs and may have

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