Observation systems are increasingly used around the world for a variety of purposes; 2 critical purposes are to understand and to improve teaching. As observation systems differ considerably, individuals must decide what observation system to use. But the field does not have a common specification of an observation system, nor does it have…

This paper describes HASbot, an automated text scoring and real-time feedback system designed to support student revision of scientific arguments. Students submit open-ended text responses to explain how their data support claims and how the limitations of their data affect the uncertainty of their explanations. HASbot automatically scores these…

This dissertation explores the post-hoc programmatic outcomes and experiences of participants in a large scale, grant-funded professional development (PD) program. This PD was an immersive, two-year induction program designed to improve state testing scores in science, and support early career science educators as they transitioned into the…

Using Trends in International Mathematics and Science Study (TIMSS) 2011 eighth-grade international dataset, this study explored the profiles of instructional practices reported by high- and low-performing mathematics teachers across the US, Finland, Korea, and Russia. Concepts of conceptual teaching and procedural teaching were used to frame the…

This study examined the high schools' state tests performances in mathematics, reading, and science of an open-enrollment STEM-focused charter school system,Harmony Public Schools(HPS), between 2010 and 2013, and compared them with the performance of matched traditional public schools (TPS) in Texas. After propensity score matching, 12 HPS schools…

The aim of this study was to examine the mistakes made by freshman students of science teaching during the process of proving and the reasons for these mistakes. To this aim, the study, which was conducted via the case study method, was performed with 52 freshman students who were studying at the department of science teaching in a state…

There are many factors that shape students' attitudes toward science, technology, engineering and mathematics. This exploratory study of high school students examined the effect of enriching chemistry with math on chemistry students' attitudes toward math and careers involving math. To measure student attitudes, a survey was administered before…

This work presents a proposal for the teaching-learning of the concept map technique applied to the Natural Sciences course in the second year of Compulsory Secondary Education (ESO, according to its initials in Spanish). Two sessions have been designed, one of which is an instructor-led session to learn the technique and another is a session in…

We present a plausible causal analysis of the impact of playing after school on academic performance and investigate parental support as a potential channel. We exploit the data from the 2011 Trends in International Mathematics and Science Survey to evaluate the effects by using a propensity score matching approach. The results show that playing…

In Sweden, the policy of national testing was expanded in 2013 by introducing national tests in science in the sixth grade. The aim of this study is to contribute knowledge about the enactment of this policy of national testing by investigating students' experiences of taking the tests. Students were interviewed about their experiences of taking…

This paper presents a revised learning progression for the energy concept and initial findings on diverse progressions among subgroups of sample students. The revised learning progression describes how students progress towards an understanding of the energy concept along two progress variables identified from previous studies--key ideas about…

This article provides an overview of the main findings for the countries of the UK from the Organisation for Economic Co-operation and Development (OECD) Programme for International Student Assessment (PISA) in 2015, where science was the major focus. The nature of the tests, the key findings and how they might be interpreted are discussed--in…

Outdoor, hands-on and experiential learning, as opposed to instruction-based learning in classroom, increases student satisfaction and motivation leading to a deeper understanding of the subject. However, the use of outdoor exercises in undergraduate biology courses is declining due to a variety of constraints. Thus, the goal of this paper is to…

Reforms in K-12 science education are global. New national science curricula were introduced in the United States (NRC, 1996), in Canada (CEMC, 1997), and in Europe (European Commission 2007). In this article, the impact of these reforms on college students in Quebec is studied. Articulation between high school and college sectors is viewed…

The Teacher Academy in the Natural Sciences (TANS) provided middle school (U.S. Grades 6-8) teachers (N = 81) with intensive professional development in chemistry, geosciences, and physics through 13 days of face-to-face instruction that was extended with 2 online science modules per discipline. Because we administered online module assessments…