Students’ Energy Concepts at the Transition Between Primary and Secondary School

Energy is considered both a core idea and a crosscutting concept in science education. A thorough understanding of the energy concept is thought to help students learn about other (related) concepts within and across science subjects, thereby fostering scientific literacy. This study investigates students’ progression in understanding the energy concept in biological contexts at the transition from primary to lower secondary school by employing a quantitative, cross-sectional study in grades 3–6 (N?=?540) using complex multiple-choice items. Based on a model developed in a previous study, energy concepts were assessed along four aspects of energy: (1) forms and sources of energy, (2) transfer and transformation, (3) degradation and dissipation, and (4) energy conservation. Two parallel test forms (A and B) indicated energy concept scores to increase significantly by a factor of 2.3 (A)/1.7 (B) from grade 3 to grade 6. Students were observed to progress in their understanding of all four aspects of the concept and scored highest on items for energy forms. The lowest scores and the smallest gain across grades were found for energy conservation. Based on our results, we argue that despite numerous learning opportunities, students lack a more integrated understanding of energy at this stage, underlining the requirement of a more explicit approach to teaching energy to young learners. Likewise, more interdisciplinary links for energy learning between relevant contexts in each science discipline may enable older students to more efficiently use energy as a tool and crosscutting concept with which to analyze complex content.     

Computing for all?: Examining critical biases in computational tools for learning

Given the increased need for broadening participation in computing, there must be a focus not just on providing culturally relevant content but also on building accessible and inclusive computational tools. Most efforts to design culturally responsive computational tools redesign surface features, often through making nominal changes to add cultural meaning, yet the deeper structural design remains largely intact. We take a critical perspective towards novice programming environments to elucidate how the underlying structure privileges particular epistemologies and cultures. In this paper, we examine how the cultural practice of storytelling is supported and/or inhibited within novice programming tools. We draw upon the experiences of 38 Native American youth, who worked in teams to create place-based, interactive stories and games for their community. Findings offer insights to the embedded cultural biases that exist in the structures of computational tools. We discuss insights for how to address cultural biases and promote deeper integration of cultural practices in future designs of culturally responsive computational tools.

Practitioner Notes

What is already known about this topic?

• Culturally responsive computing connects computing content heritage and vernacular cultural practices.
• “Black boxing,” or lack of transparency in how it works, in computational tools makes it difficult for novices to enter computing cultures.
• Design tools are embedded with particular ways of being, knowing, valuing and doing.

What this paper adds?

• Thirty-eight novice learners’ computational designs were shaped by the ways in which a computational tool privileged particular knowledge systems.
• Storytelling, as a critical cultural practice, especially in Indigenous cultures, is heavily constrained by the design structure of computational tools.
• Computational tools are cultural artifacts with deeply embedded epistemological, ontological and axiological biases, which directly frame what learners can do with these tools.

Implications for practice

• Collaborative, community-based design processes could mitigate the cultural biases that persist in computational tools.
• Transparency in computation tools in critical to broadening participation in computing cultures.
• Culturally responsive design of computational tools at the structural level is required to build inclusive computing cultures.

     

Childhood Maltreatment and Early Developmental Vulnerabilities at Age 5 Years

This study examined associations between maltreatment and early developmental vulnerabilities in a population sample of 68,459 children (M_age = 5.62 years, SD = .37) drawn from the Australian state of New South Wales, using linked administrative data for the children and their parents (collected 2001–2009). Associations were estimated between (a) any maltreatment, (b) the number of maltreatment types, and (c) the timing of first reported maltreatment and vulnerability and risk status on multiple developmental domains (i.e., physical, social, emotional, cognitive, and communication). Pervasive associations were revealed between maltreatment and all developmental domains; children exposed to two or more maltreatment types, and with first maltreatment reported after 3 years of age, showed greater likelihood of vulnerability on multiple domains, relative to nonmaltreated children.     

The effects of quantitative skills training on college outcomes and peers

This paper estimates the causal effect of taking a course in quantitative reasoning on students’ academic performance and classroom peer-group composition at a liberal arts college. To identify effects, the paper compares the outcomes of otherwise similar students who barely passed a baseline quantitative skills assessment (not taking the course) with students who barely failed (taking the course). The regression-discontinuity estimates show little impact on academic outcomes for student close to the passing cutoff, including grades on subsequent courses with quantitative content, but we are unable to distinguish small from zero effects. Exogenous course assignment does affect the composition of students’ classroom peer groups in subsequent years. The effects can only be generalized to students in the vicinity of the passing threshold (but not students with much worse quantitative skills at the baseline). We discuss implications for research and policy on remediation.     

Celebration and Separation: A Troublesome Approach to Multicultural Education

Middle school classrooms can be fertile ground for positively impacting students' cultural and racial assumptions and understanding, given an effective multicultural curriculum and school structure. This article presents a narrative of the author's contrasting experiences teaching a text with racial themes. Applicable literature provides a framework for explaining the students' differing levels of receptivity towards the text. Three particular areas of study provide the framework for explaining student response: a school's approach to multicultural literature; school structure, in particular, tracking; and theories of racial identity development. In addition, the author challenges adults involved in the educational system to implement truly multicultural approaches to learning, despite the potential discomfort or unpopularity of such change.