Year-long teacher professional development on fifth grade student science outcomes

ABSTRACT

We first examined the effects of a year-long professional development (PD) programme for elementary science teachers on fifth grade student performance on state-mandated science achievement tests of students from a treatment and a comparison group of teachers in the 2009–2010 academic year. Then, we investigated the longer-term impacts by comparing the 2010–2011 student test results of the teachers one year after receiving treatment in 2009–2010 with the students of teachers who received treatment during 2010–2011. Test scores were analysed using a propensity score matching method to examine the relationship between the PD and student achievement. Results showed that even though the treatment teachers were out of the classroom 20% of the school year to attend the PD, there was no difference between their students’ science achievement scores and those of the comparison teachers who were in the classroom every day. This is an important finding because many principals and parents are reluctant to provide teachers with release time for PD. We also determined that students of teachers one year after participating in the PD significantly (p?<?0.001) with a medium effect size (η²?=?.088) outperformed students of teachers who had just completed the programme. This suggests that it takes time for teachers to implement new teaching strategies and that to observe the impact of an intervention programme, it may be important to expand the timeframe of the programme evaluation.     

The development of science concepts in primary children by discovery strategies

A year three/four class of thirty primary school children was selected and then exposed to a series of twenty discovery lessons on electricity, discovery learning being: The learning of scientific principles or concepts which occurs as a generalisation of experiences by the learner in the absence of direct telling by the teacher. (Carin and Sund, 1975) The performance of these children was evaluated, both before and after the discovery lessons, on the basis of their ability to solve problems requiring the application of one or more of the thirteen concepts covered. On comparing the performance of the “discovery” class on pre-test items with the performance of children from years three and four, as well as five to seven in other Perth suburban schools on subsets of these items, it was found that the “discovery” group was no better and no worse than other primary classes. A team of ten graders (examiners) was used for rating purposes. The Rasch Model was the statistical model used and enabled comparison to be made between the “discovery” group and all other class groups.     

Changes in the representation of dynamism in fifth grade children

According to research on mental representation carried out in the Piaget tradition (Galifret-Granjon, 1981; Piaget & Inhelder, 1966), the cognitive processes of decentration in terms of the states (initial and final) and anticipation (of change and movement) form the basis of the reconstruction of a dynamic situation. Children centered primarily on the initial and final states have great difficulty creating a mental representation of a dynamic situation. This study, based on a socio-constructivist approach (Gamier, 1985), seeks to help children develop these two fundamental processes. The pedagogical analysis focuses first on the observation of children's behaviour while playing ball in a group and then on the graphic representation of their actions drawn by the children after each play session. We saw in the children's game definite changes stemming from decentration. We also noticed that the children were centering less on the states in their graphic production which became increasingly rich in codes.     

Improving the acquisition and retention of science material by fifth grade students through the use of imagery interventions

This study examined the effect of imagery interventions for the presentation of novel science vocabulary to fifth grade learners. Eighty-nine students from two schools in Long Island participated in this study and were randomly assigned to four different instructional interventions: a Picture Presentation method, in which a word was paired with a picture; an Image Creation??No Picture method, in which the participants were told to create an image of the word and draw it on paper; an Image Creation??Picture method, in which the students were presented with the picture and then told to draw it; and a Word Only method, which involved the simple verbal presentation of the word. Results demonstrated that students in the imagery intervention groups (Picture Presentation, Image Creation??No Picture, and Image Creation??Picture) scored higher on the outcome measures at both immediate and delayed recall. It was also shown that the deeper the students processed the ??to be learned?? vocabulary words, the higher they scored on the outcome measures. Based on the mean outcome measure scores at both time points, students in the Image Creation??Picture intervention scored the highest, followed by the students in the Image Creation??No Picture intervention, those in the Picture Presentation intervention, and finally the Word Only intervention students. Such a study has implications as to the most effective way to integrate science and literacy and successfully present novel concepts in the classroom.     

A promising science and literacy instructional model with Hispanic fifth grade students

Abstract

This study evaluated the Science and Literacy Instructional Model aimed at helping primarily Hispanic bilingual/English Learners (ELs) and economically disadvantaged fifth grade students with science achievement as measured by high-stakes standardized science achievement scores. The model combined purposeful planning, innovative academic vocabulary instruction, and a Lesson Design Lab. Difference-in proportions tests were used to determine if students at two school campuses showed positive achievement gains on a state science test. This study found statistically significant results with medium to large effect sizes at both campuses. Findings contribute to much needed research, practice, and policy in the area of effective models to assist both teachers and students in an era of high-stakes testing.     

The use of self‐learning modules to facilitate learning of basic science concepts in an integrated medical curriculum

This study used qualitative and quantitative approaches to evaluate the effectiveness of self‐learning modules (SLMs) developed to facilitate and individualize students' learning of basic medical sciences. Twenty physiology and nineteen microanatomy SLMs were designed with interactive images, animations, narrations, and self‐assessments. Of 41 medical students, 40 students voluntarily completed a questionnaire with open‐ended and closed‐ended items to evaluate students' attitudes and perspectives on the learning value of SLMs. Closed‐ended items were assessed on a five‐point Likert scale (5 = high score) and the data were expressed as mean ± standard deviation. Open‐ended questions further evaluated students' perspectives on the effectiveness of SLMs; student responses to open‐ended questions were analyzed to identify shared patterns or themes in their experience using SLMs. The results of the midterm examination were also analyzed to compare student performance on items related to SLMs and traditional sessions. Students positively evaluated their experience using the SLMs with an overall mean score of 4.25 (SD ± 0.84). Most students (97%) indicated that the SLMs improved understanding and facilitated learning basic science concepts. SLMs were reported to allow learner control, to help in preparation for subsequent in‐class discussion, and to improve understanding and retention. A significant difference in students' performance was observed when comparing SLM‐related items with non‐SLM items in the midterm examination (P < 0.05). In conclusion, the use of SLMs in an integrated basic science curriculum has the potential to individualize the teaching and improve the learning of basic sciences. Anat Sci Educ 3: 219–226, 2010. © 2010 American Association of Anatomists.     

学习科学发展观

党的十六届三中全会作出了《关于完善社会主义市场经济体制若干问题的决定》,这是我们党领导我国社会主义建设45年历史经验的深刻总结。《决定》最引人注目之处就是提出以人为本,树立全面、协调、可持续的发展观。这个科学的发展观具有深远的意义,它进一步指明了新世纪、新阶段我国现代化建设的发展道路、发展模式和发展战略。学习《决定》,在我们的观念中,有几个重要观点需要转变观念,统一认识。     

The use of motor activity as an index of curiosity in children

The curiosity of 120 elementary school children, aged five through thirteen years, was assessed by three measures: (1) the amount of coordinated sensory-motor activity directed toward designated objects in a waiting room environment during a 10-minute waiting period, (2) the number of unsolicited questions asked within the same time period and environment, and (3) teacher ratings, where classroom teachers estimated children's curiosity based on their normal classroom behavior. In a three-way analysis of variance, the amount of curiosity expressed through motor activity was found significantly related to groups based on racial-ethnic origins, but not to groups based on age or sex. The amount of curiosity expressed through motor activity was negatively correlated with teacher ratings in one class but not significantly correlated in three other classes. Children who asked most questions were rated highest in curiosity by their teachers, but exhibited least curiosity through motor activity in the waiting room.     

Teaching science in fifth grade: Instructional goals that support conceptual change

How one teacher in a fifth-grade classroom (student ages 10–11) facilitated learning as conceptual change is the subject of this research. The teacher presented her students with seven learning goals that she believed would allow students to engage in conceptual change learning. Student outcomes as a result of this teacher's instruction included significant changes in the ability of students to engage in conversations that are characterized as metaconceptual and metacognitive. These changes are attributed to instructional activities of the teacher that established her learning goals. Characteristics of the learning environment created by this teacher are presented and an analysis of the instructional activities she presented to students are used to answer the following question: How did the learning goals presented by this teacher support students as they engaged in learning as conceptual change? The implications of this study for teachers in different contexts are discussed. © 1998 John Wiley & Sons, Inc. J Res Sci Teach 35: 1091–1101, 1998     

科学发展观与高校发展

以科学发展观为指导,对高校当前改革和发展中的学校定位和办学特色;保证学校全面、协调、可持续发展;转变高教增长模式,以信息化推动高教高质量、高效益、高速度发展等问题进行分析和论述,提出了解决的办法。     

Evaluation of the grade placement of science concepts in the early elementary grades

Nonverbal evolution techniques can be used to assist in the grade placement of science concepts at the primary grade level.     

The ability of children to generalize selected science concepts

The study investigated the ability of primary and elementary school subjects to generalize two science concepts, Insect and Animal with and without instruction in the form of a mental set. It also examined the effects of age, IQ, and sex on the ability of the children to generalize these concepts. Two instruments measuring the ability to generalize the concepts Insect and Animal were developed. The results indicate that of the independent variables investigated, age and mental set significantly affected the ability to generalize the concepts Insect and Animal. It was found that the younger children's concepts were least developed and with age these concepts became more developed and more conceptual in nature. The ability to use information given in a mental set was found to be a function of age. The children in this study were more able to generalize the concept Insect than the concept Animal. The results suggest that children with age and instruction axe better able to master less general concepts than more geaeral ones. In addition, the study demonstrated that children are able to improve their learning of general concepts provided a great number and variety of instances and noninstances of the concept are used in the instruction. It was also found that the younger children were more perceptually bound than the older children. The younger children were unable to overcome the pull of perceptual attractiveness that the noninstances held for them despite instruction. The results suggest that teachers of such children should be aware of the conceptual level of the content being taught to such children to ensure appropriate and meaningful learning takes place.     

An evaluation of multimodal interactions with technology while learning science concepts

This paper explores the value of employing multiple modalities to facilitate science learning with technology. In particular, it is argued that when multiple modalities are employed, learners construct strong relations between physical movement and visual representations of motion. Body interactions with visual representations, enabled by interactive technologies, can encourage rhythmic cycles of engagement and reflection. A study was carried out to investigate how students interpret distance–time and velocity–time graphs created through hand movement. It explored the dynamic coupling between their body movements and graphs, and their subsequent interpretation and production of graphs on paper. The results show that physical manipulation of kinematics graphs has a significantly greater effect on students' ability to relate graphs to movement than observing the graphs being produced by someone else.