Home and school contributions to science achievement in elementary schools in israel

This article reexamines the relative status of “school variables” versus “home variables” in explaining the variance in science achievement, based on data from Israeli elementary schools in 1984. The contribution of school variables was found to be “subject specific”—larger in subjects taught in school and less dependent on general ability, and “system specific”—larger in low socioeconomic schools and small in high socioeconomic schools.     

Standardized test outcomes for students engaged in inquiry‐based science curricula in the context of urban reform

Considerable effort has been made over the past decade to address the needs of learners in large urban districts through scaleable reform initiatives. We examine the effects of a multifaceted scaling reform that focuses on supporting standards based science teaching in urban middle schools. The effort was one component of a systemic reform effort in the Detroit Public Schools, and was centered on highly specified and developed project‐based inquiry science units supported by aligned professional development and learning technologies. Two cohorts of 7th and 8th graders that participated in the project units are compared with the remainder of the district population, using results from the high‐stakes state standardized test in science. Both the initial and scaled up cohorts show increases in science content understanding and process skills over their peers, and significantly higher pass rates on the statewide test. The relative gains occur up to a year and a half after participation in the curriculum, and show little attenuation with in the second cohort when scaling occurred and the number of teachers involved increased. The effect of participation in units at different grade levels is independent and cumulative, with higher levels of participation associated with similarly higher achievement scores. Examination of results by gender reveals that the curriculum effort succeeds in reducing the gender gap in achievement experienced by urban African‐American boys. These findings demonstrate that standards‐based, inquiry science curriculum can lead to standardized achievement test gains in historically underserved urban students, when the curriculum is highly specified, developed, and aligned with professional development and administrative support. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 922–939, 2008     

Using the SOLO taxonomy to analyze competence progression of university science curricula

During 2007 all Danish university curricula were reformulated to explicitly state course objectives due to the adoption of a new Danish national grading scale which stipulated that grades were to be given based on how well students meet explicit course objectives. The Faculties of Science at University of Aarhus and University of Southern Denmark interpreted “course objectives” as “intended learning outcomes” (ILO) and systematically formulated all such as competencies using the SOLO taxonomy that operates with five numbered progressive levels of competencies. We investigate how the formulation of ILOs using the SOLO taxonomy gives information about competence progression, educational traditions, and the nature of various science subjects. We use all the course curricula (in total 632) from the two faculties to analyze and compare undergraduate and graduate courses within each department, and different departments with each other.     

Enhancing student access to science curricula through a reading intervention

The current study explored whether a reading intervention combining flexibly applied multisyllabic word‐decoding strategies with evidence‐based fluency strategies was effective in improving the science text reading skills of upper‐elementary struggling readers. Four students, three in fourth and one in fifth grade, participated in the study. A delayed multiple baseline design was utilized, with a staggered 3‐week baseline followed by 8 weeks of reading intervention. Three students demonstrated small to moderate gains in reading fluency on science instructional passages, but no generalized gains in reading fluency on standardized passages. All students demonstrated direct gains in multisyllabic word‐decoding accuracy on science instructional passages, but no generalized gains in decoding accuracy on standardized passages. Participating students rated the intervention favorably and perceived gains in their reading skills. These findings support the use of science curricular passages when implementing reading interventions to enhance students’ ability to access the curriculum.     

The impact of science curricula on student views about the nature of science

This review of the literature focused on three decades of research related to precollege student understandings about the nature of science. Various interpretations of what aspects characterize the nature of science were examined, revealing an agreement among scientists, science educators, and those involved in policy-making arenas that the nature of science is multifaceted and an important component of scientific literacy. A summary of the research regarding the adequacies of student conceptions about the nature of science revealed inconsistent results. Although the majority of studies show that student understandings are less than desirable, there is research that indicates that student conceptions are acceptable. Research on the impact of instructional materials and techniques on student understandings was also reviewed. The effects of language in science instruction, the content emphasis of instructional materials, integrated science curricula, and instruction in general were curricular variables found to have a negative impact on student understandings about the nature of science. Empirical evidence about the success of innovative instructional materials and techniques designed to facilitate more adequate understandings of the nature of science is needed.     

The development of a science process assessment for fourth-grade students

In this study, a multiple-choice test entitled the Science Process Assessment was developed to measure the science process skills of students in grade four. Based on the Recommended Science Competency Continuum for Grades K to 6 for Pennsylvania Schools, this instrument measured the skills of (1) observing, (2) classifying, (3) inferring, (4) predicting, (5) measuring, (6) communicating, (7) using space/time relations, (8) defining operationally, (9) formulating hypotheses, (10) experimenting, (11) recognizing variables, (12) interpreting data, and (13) formulating models. To prepare the instrument, classroom teachers and science educators were invited to participate in two science education workshops designed to develop an item bank of test questions applicable to measuring process skill learning. Participants formed “writing teams” and generated 65 test items representing the 13 process skills. After a comprehensive group critique of each item, 61 items were identified for inclusion into the Science Process Assessment item bank. To establish content validity, the item bank was submitted to a select panel of science educators for the purpose of judging item acceptability. This analysis yielded 55 acceptable test items and produced the Science Process Assessment, Pilot 1. Pilot 1 was administered to 184 fourth-grade students. Students were given a copy of the test booklet; teachers read each test aloud to the students. Upon completion of this first administration, data from the item analysis yielded a reliability coefficient of 0.73. Subsequently, 40 test items were identified for the Science Process Assessment, Pilot 2. Using the test-retest method, the Science Process Assessment, Pilot 2 (Test 1 and Test 2) was administered to 113 fourth-grade students. Reliability coefficients of 0.80 and 0.82, respectively, were ascertained. The correlation between Test 1 and Test 2 was 0.77. The results of this study indicate that (1) the Science Process Assessment, Pilot 2, is a valid and reliable instrument applicable to measuring the science process skills of students in grade four, (2) using educational workshops as a means of developing item banks of test questions is viable and productive in the test development process, and (3) involving classroom teachers and science educators in the test development process is educationally efficient and effective.     

Issues of relevance in Kenyan mathematics and science curricula

Are ‘Mathematics’ and ‘Science’ such universal notions that one curriculum can serve equally well in all societies, subject only to exemplification from local circumstances? Or do different human cultures construct and use ‘Mathematics’ and ‘Science’ so differently that each culture needs to construct its own curriculum to teach its own children? At issue is whether curricula developed in industrialised states can be readily transferred or adapted to developing countries.Taking as its starting point the fates of the Scools Mathematics and the Schools Science Projects in Kenya, — both adaptations of British models, — this paper reviews the research addressed to these questions. Its conclusion is that definitive answers are not yet possible. Nevertheless, what evidence there is seems to question the possibilities of transferability or even of simple adaptation.     

Understanding of graphs in social science undergraduate students: selection and interpretation of graphs

How do university students understand the graphs that they read in their textbooks? How does their knowledge regarding the content and their statistical training influence this understanding? Does the kind of task demand also influence this understanding? To answer these questions, we asked a group of psychology students and a group of economics students to choose the most suitable graph for presenting the results of different psychological research studies (reports) (selection task) or to explain in words the results of the same reports shown by means of their graphic representations only (interpretation task). The results showed there were very few differences between groups. Most of the students were able to relate textual information to the adequate graph, but also revealed significant shortcomings and mistakes in their understanding of important syntactic aspects of graphs. They also interpreted the graphs correctly but their interpretation had different levels of complexity, which were not always optimal. We also identified significant differences regarding the difficulty of the reports and the kinds of misinterpretations of graphs. The two tasks thus revealed different pictures of students’ skills in reading and interpreting graphs and, consequently, how the characteristics of task demands influence their performance.     

生物教学中如何实现对学生科学态度的评价

作为高科技的两大支柱之一的生物科学技术越来越受到全社会的广泛认同,生物学常识已经渗入到社会的各个行业,与各学科发生了广泛链接,产生了无比强烈的共鸣。初中生物学科是学生接触最早的一门独立的自然学科,其教学内容与学生的生活世界紧密相连,学生有着丰富的情感体验,这是生物学科强大的教育内涵,在培养学生科学态度中有着无可比拟的学科优势。     

Problems in the summative evaluation of experimental science curricula in developing countries

Conclusion The simple techniques described in this paper can be applied rapidly and inexpensively by personnel previously untrained in techniques of curriculum evaluation. They are unrefined and open to much serious methodological criticism. Nevertheless they work. They are a way of giving those who must make value judgements about the implementation of new curricula some systematic information on which to base opinions. By using such methods for example, the author was able to show that the experimental course in biology in Malawi had a very high chance of success (90 per cent probability) when implemented in all schools in Malawi. Similar studies of current experimental programmes in Kenya and Zambia have provided interesting comparisons. In Kenya the Secondary Science Project in Biology was shown to have an 80 per cent chance of succeeding when spread from trial schools to all schools. In Zambia by contrast the Secondary School Science Pilot Project of the Science Education School of the University was shown to have only a 20 per cent chance of success. These indices provided valuable guidance to the Ministries concerned (Meyer, 1971). The use of such simple techniques has not been previously employed in developing countries and changes of policy have been based invariably on unsystematic opinion. The methods reported in this paper, therefore, appear justified in the absence of practicable alternatives.     

Fifth graders' science inquiry abilities: A comparative study of students in hands‐on and textbook curricula

A large number of American elementary school students are now studying science using the hands‐on inquiry curricula developed in the 1990s: Insights; Full Option Science System (FOSS); and Science and Technology for Children (STC). A goal of these programs, echoed in the National Science Education Standards, is that children should gain “abilities to do scientific inquiry” and “understanding about scientific inquiry.” We have studied the degree to which students can do inquiries by using four hands‐on performance assessments, which required one or three class periods. To be fair, the assessments avoided content that is studied in depth in the hands‐on programs. For a sample of about 1000 fifth grade students, we compared the performance of students in hands‐on curricula with an equal number of students with textbook curricula. The students were from 41 classrooms in nine school districts. The results show little or no curricular effect. There was a strong dependence on students' cognitive ability, as measured with a standard multiple‐choice instrument. There was no significant difference between boys and girls. Also, there was no difference on a multiple‐choice test, which used items released from the Trends in International Mathematics and Science Study (TIMSS). It is not completely clear whether the lack of difference on the performance assessments was a consequence of the assessments, the curricula, and/or the teaching. © 2006 Wiley Periodicals, Inc. J Res Sci Teach 43: 467–484, 2006     

Examining calculator use among students with and without disabilities educated with different mathematical curricula

This study assessed if students with and without disabilities used calculators (fourfunction, scientific, or graphing) to solve mathematics assessment problems and whether using calculators improved their performance. Participants were sixth and seventh-grade students educated with either National Science Foundation (NSF)-funded or traditional mathematics curriculum materials. Students solved multiple choice and open-ended problems based on items from the State’s released previous assessments. A linear mixed model was conducted for each grade to analyze the factors impacting students’ self-reported calculator use. Chi Square tests were also performed on both grade’s data to determine the relationship between using a calculator and correctly solving problems. Results suggested only time as a main factor impacting calculator use and students who self-reported using a calculator were more likely to answer questions correctly. The results have implications for practice given the controversy over calculator use by students both with and without disabilities.     

Between two science curricula: the influence of international surveys on the Israeli science curriculum

International surveys have served as agents of change for the introduction of reforms in curricula worldwide. The Israeli Ministry of Education set a goal of raising Israel's ranking in international surveys so that Israel will be among the 10 leading countries in the Program for International Student Assessment and Trends in International Mathematics and Science Study (TIMSS). The Ministry of Education therefore acted to reduce the gap between the intended and the attained science curriculum by intervening on two curricular levels: the intended and the implemented. Over the years, documents that contributed to the adoption of contents and skills from the international surveys were added to the science curriculum, until the publication of the new science curriculum. The intervention was successful and in TIMSS 2011, Israel ranked 13 out of the 42 participating countries. The present research examines the influence of international surveys on science education in Israel, over the course of time (1996–2011). Analysis of documents accompanying the curriculum shows a clear message that international surveys are standards that should be used for teaching, and every additional document closes the gap between the science curriculum and the international surveys.     

Thinking about television science: How students understand the nature of science from different program genres

Student views on the nature of science are shaped by a variety of out‐of‐school forces and television‐mediated science is a significant force. To attempt to achieve a science for all, we need to recognize and understand the diverse messages about science that students access and think about on a regular basis. In this work I examine how high school students think about science that is mediated by four different program genres on television: documentary, magazine‐format programming, network news, and dramatic or fictional programming. The following categories of findings are discussed: the ethics and validity of science, final form science, science as portrayed by its practitioners, and school science and television science. Student perceptions of the nature of science depicted on the program sample used in this study ranged from seeing science as comprising tentative knowledge claims to seeing science as a fixed body of facts. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 234–256, 2003