There are many ways to understand the gap in science learning and achievement separating low‐income, ethnic minority and linguistic minority children from more economically privileged students. In this article we offer our perspective. First, we discuss in broad strokes how the relationship between everyday and scientific knowledge and ways of knowing has been conceptualized in the field of science education research. We consider two dominant perspectives on this question, one which views the relationship as fundamentally discontinuous and the other which views it as fundamentally continuous. We locate our own work within the latter tradition and propose a framework for understanding the everyday sense‐making practices of students from diverse communities as an intellectual resource in science learning and teaching. Two case studies follow in which we elaborate this point of view through analysis of Haitian American and Latino students' talk and activity as they work to understand metamorphosis and experimentation, respectively. We conclude with a discussion of the implications of this new conceptualization for research on science learning and teaching. © 2001 John Wiley & Sons, Inc. J Res Sci Teach 38: 529–552, 2001

Calls for the improvement of science education in the USA continue unabated, with particular concern for the quality of learning opportunities for students from historically nondominant communities. Despite many and varied efforts, the field continues to struggle to create robust, meaningful forms of science education. We argue that ‘settled expectations’ in schooling function to (a) restrict the content and form of science valued and communicated through science education and (b) locate students, particularly those from nondominant communities, in untenable epistemological positions that work against engagement in meaningful science learning. In this article we examine two episodes with the intention of reimagining the relationship between science learning, classroom teaching, and emerging understandings of grounding concepts in scientific fields – a process we call desettling. Building from the examples, we draw out some key ways in which desettling and reimagining core relations between nature and culture can shift possibilities in learning and development, particularly for nondominant students.

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Early career teachers rarely receive sustained support for addressing issues of diversity and equity in their science teaching. This paper reports on design research to create a 30 hour professional development seminar focused on cultivating the interpretive power of early career teachers who teach science to students from historically non-dominant communities. Interpretive power refers to teachers' attunement to (a) students' diverse sense-making repertoires as intellectually generative in science and (b) expansive pedagogical practices that encourage, make visible, and intentionally build on students' ideas, experiences, and perspectives on scientific phenomena. The seminar sought to integrate student sense-making, scientific subject matter, teaching practice, and matters of equity and diversity on the same plane of professional inquiry by engaging participants in: (a) learning plant science; (b) analyzing classroom cases; (c) experimenting with expansive discourse practices in their classrooms; and (d) analyzing their classroom experiments in relation to student sense-making and expansive pedagogy. Twenty-eight teachers participated in two cycles of design research. An interview-based transcript analysis task captured shifts in teachers' interpretive power through their participation in the seminar. Findings showed that the teachers developed greater attunement to: complexity in students' scientific ideas; the intellectual generativity of students' sense-making; student talk as evidence of in-process, emergent thinking; and co-construction of meaning in classroom discussions. Findings also showed that participants developed deeper understanding of the functions of expansive teaching practices in fostering student sense-making in science and greater commitment to engaging in expansive practices in their classroom science discussions. # 2015 Wiley Periodicals, Inc. J Res Sci Teach XX:XX-XX, 2015.

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Education policy in the U.S. in the last two decades has emphasized large‐scale assessment of students, with growing consequences for schools, teachers, and students. Given the high stakes of such tests, it is important to understand the relationships between students' answers to test items and their knowledge and skills in the tested content area. Due to persistent test score gaps, students from historically non‐dominant communities, and their teachers and schools, are differentially affected by the consequences of large‐scale testing. As a result, it is particularly important to understand how students from historically non‐dominant communities interact with test items on large‐scale tests. We report on a study in which we interviewed 36 students about their responses to six multiple‐choice science test items from the Massachusetts state science assessment for fifth grade. The 36 students included 12 students from low‐income households, 12 English Language Learners, and 12 middle‐class native English speakers. We found that for five of the six selected test items, students' descriptions of the science content knowledge they used to answer the test items frequently did not match the content knowledge targeted by the items. In addition, students from low‐income households and English Language Learners were more likely than middle‐class native English speakers to answer incorrectly despite demonstrating knowledge of the targeted science content for the items. We argue that such evidence challenges the expectation that students' answers to individual test items reflect their knowledge of the targeted science content, and that evidence of this kind should be included in investigations of the validity of large‐scale tests. © 2012 Wiley Periodicals, Inc. J Res Sci Teach 49: 778–803, 2012

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