Video Modeling and Explicit Instruction: A Comparison of Strategies for Teaching Mathematics to Students with Learning Disabilities

As classrooms begin to adopt a greater number of digital technologies such as computers and tablets, it is important for educators to understand how effective such tools can be in aiding in the delivery of instruction to students who struggle in mathematics, such as those identified with a learning disability in mathematics. One digital‐based instructional strategy with a limited research base for students with a learning disability is video modeling. Through a single subject alternating treatments design, this study compared the use of video modeling to face‐to‐face explicit instruction for teaching geometry word problems to three secondary students with a learning disability in mathematics. Across 10 sessions of intervention, all three students demonstrated improved performance on all dependent variables with both interventions, while the explicit instruction condition produced slightly greater accuracy scores for two of the three students. The results and their implications for the field of mathematics are discussed.     

应用气象学专业“大气探测学”课程教学改革探索--以“降水测量”为例

面向国防科技大学气象海洋学院“应用气象学”本科专业的“大气探测学”教学需求,在课程目标、课程内容、教学方法、评价模式等方面开展了教学改革探索。剖析了大气探测理论与实践结合、基础与前沿并重等特点,引入任务型教学、结构教学法和项目化学习等教学方法。并以“降水测量”一课为例,强调以大气物理为基础,以先进电子技术为工具,引导学生思考从大气探测基本原理到切实可行的仪器之间的技术工程问题,提升学生提出问题、解决问题及寻找答案的自主能力。     

测绘专业《GPS测量原理及应用》教学改革研究

根据江西理工大学测绘专业的实际情况,提出了《GPS测量原理及应用》课程理论和实践教学中存在的一些问题;然后提出了针对性的教改方案;最后进行了总结与展望.     

Junior high school physics: Using a qualitative strategy for successful problem solving

Students at the junior high school (JHS) level often cannot use their knowledge of physics for explaining and predicting phenomena. We claim that this difficulty stems from the fact that explanations are multi‐step reasoning tasks, and students often lack the qualitative problem‐solving strategies needed to guide them. This article describes a new instructional approach for teaching mechanics at the JHS level that explicitly teaches such a strategy. The strategy involves easy to use visual representations and leads from characterizing the system in terms of interactions to the design of free‐body force diagrams. These diagrams are used for explaining and predicting phenomena based on Newton's laws. The findings show that 9th grade students who studied by the approach advanced significantly from pretests to post‐tests on items of the Force Concept Inventory—FCI and on other items examining specific basic and complex understanding performances. These items focused on the major learning goals of the program. In the post‐tests the JHS students performed on the FCI items better than advanced high‐school and college students. In addition, interviews conducted before, during, and after instruction indicated that the students had an improved ability to explain and predict phenomena using physics ideas and that they showed retention after 6 months. © 2010 Wiley Periodicals, Inc. J Res Sci Teach 47: 1094–1115, 2010     

如何建构大学多元英语课堂教学评价体系

课堂评价是教师用来掌握学生课堂学习情况的一种课堂操作方式,是师生双方对教学和学习实施监控的一种手段。从理论和实践的角度出发,努力探索建构大学多元英语课堂教学评价体系的途径与手段,目的是优化大学英语课堂教学,促进大学英语教学朝高效课堂教学的方向发展。     

寓教于乐 培养兴趣

寓教于乐能使课堂教学产生趣味性、生动性、激发学生学习兴趣,使学生获取知识、发展能力。因此,教师必须树立以学生为主体的思想,同时营造宽松的教学环境,设置乐学的情景,采用多种形式,赋予政治课教学新鲜活力和创造力。     

Effects of reciprocal teaching on reading comprehension of low‐achieving adolescents. The importance of specific teacher skills

Low‐achieving adolescents are known to have difficulties with reading comprehension. This article discusses how reciprocal teaching can improve low‐achieving adolescents' reading comprehension in whole‐classroom settings (as opposed to small‐group settings) and to what extent intervention effects are dependent on teacher behaviour. Over the course of 1 year, experimental teachers (n = 10) were given extensive training and coaching aimed at using principles of reciprocal teaching, while control teachers (n = 10) used their regular teaching method. Observations of teacher behaviour were focused on instruction of reading strategies, modelling and support of group work and were performed in both experimental and control classes, comprising a total of 369 students (mean age = 13.01). Our study shows that reciprocal teaching contributed to adolescent low achievers' reading comprehension only when experimental teachers provided high‐quality strategy instruction. In addition, results suggest that the quality of implementation of reciprocal teaching in whole‐classroom settings should receive more research attention.

Highlights

What is already known about this topic

• Reciprocal teaching is a method of instructing and guiding learners in reading comprehension.
• It consists of a set of three related instructional principles: (a) teaching comprehension‐fostering reading strategies; (b) expert modelling, scaffolding and fading; and (c) students practising and discussing reading strategies with other students, guided and coached by the teacher.
• High quality of implementation of reciprocal teaching by teachers in classrooms is difficult.

What this paper adds

• After 1 year of implementing reciprocal teaching, no main effects of the treatment were established.
• Intervention effects were moderated by quality of instruction: strategy instruction led to higher scores on reading comprehension in the treatment condition but not in the control condition.
• Implementation of the instructional principles was by no means optimal: teachers were unable to provide detailed guidance to students working in small groups and modelling of strategies requires more experience and theoretical insight in the use and nature of reading strategies.

Implications for practice and/or policy

• Extensive training and coaching are needed for teachers to become experts in reciprocal teaching.
• Teachers need hands‐on tools to be able to guide students in their collaborative group work and to fade the teachers' role in order to allow more individual self‐regulation by students in their use of strategies.
• Implementation quality has to be taken into account when doing effectiveness research and when adopting new, theory‐based didactic approaches.

     

Conceptual Teaching Through Multimediated Self‐instruction: a study with professional nursing students

A multimediated self‐instructional program was developed to introduce new concepts and techniques in an emerging area of nursing education. Two field testings of this instructional program were conducted with nursing students enrolled in a university. The results indicated that cognitive achievement did not differ between students taught by multimediated self‐instruction and lecture‐discussion. Students were able to effectively learn new nursing content through both teaching methods. There was no significant relationship found between students’ opinions about the instructional method experienced and their cognitive achievement. Students expressed some unfavourable feelings towards multimediated self‐instruction, possibly related to their general lack of prior experience with independent study or videotaped instruction. The effective use of multimediated self‐instruction is discussed.     

Teachers' learning to facilitate high‐level student thinking: Impact of a video‐based professional development

Attaining the vision for science teaching and learning emphasized in the Framework for K‐12 Science Education and the next generation science standards (NGSS) will require major shifts in teaching practices in many science classrooms. As NGSS‐inspired cognitively demanding tasks begin to appear in more and more science classrooms, facilitating students' engagement in high‐level thinking as they work on these tasks will become an increasingly important instructional challenge to address. This study reports findings from a video‐based professional development effort (i.e., professional development [PD] that use video‐clips of instruction as the main artifact of practice to support teacher learning) to support teachers' learning to select cognitively demanding tasks and to support students' learning during the enactment of these tasks in ways that are aligned with the NGSS vision. Particularly, we focused on the NGSS's charge to get students to make sense of and deeply think about scientific ideas as students try to explain phenomena. Analyses of teachers' pre‐ and post‐PD instruction indicate that PD‐participants began to adopt instructional practices associated with facilitating these kinds of student thinking in their own classrooms. The study has implications for the design of video‐based professional development for science teachers who are learning to facilitate the NGSS vision in science classrooms.     

A cross-sectional study of mathematics achievement, estimation skills, and academic self-perception in students of varying ability

This study investigated students' mathematics achievement, estimation ability, use of estimation strategies, and academic self-perception. Students with learning disabilities (LD), average achievers, and intellectually gifted students (N = 135) in fourth, sixth, and eighth grade participated in the study. They were assessed to determine their mathematics achievement, ability to estimate discrete quantities, knowledge and use of estimation strategies, and perception of academic competence. The results indicated that the students with LD performed significantly lower than their peers on the math achievement measures, as expected, but viewed themselves to be as academically competent as the average achievers did. Students with LD and average achievers scored significantly lower than gifted students on all estimation measures, but they differed significantly from one another only on the estimation strategy use measure. Interestingly, even gifted students did not seem to have a well-developed understanding of estimation and, like the other students, did poorly on the first estimation measure. The accuracy of their estimates seemed to improve, however, when students were asked open-ended questions about the strategies they used to arrive at their estimates. Although students with LD did not differ from average achievers in their estimation accuracy, they used significantly fewer effective estimation strategies. Implications for instruction are discussed.     

Accuracy of Area Model and Number Line Representations of Fractions for Students with Learning Disabilities

Assessment results are used to investigate relations between performance on a fraction number line estimation task and a circular area model estimation task for students with LD in Grades 6–8. Results indicate that students’ abilities to represent fractions on number lines and on circular area models are distinct skills. In addition, accurate fraction magnitude estimation using number lines was more strongly related to other fractions skills (e.g., fraction magnitude comparison) than accurate fraction magnitude estimation using circular area models. Our findings call for greater integration of the number line into early fractions instruction, and highlight the importance of explicitly teaching students to make connections between different visual representations of fractions. Implications for research and practice are presented.     

Using students’ feedback for teacher education: measurement invariance across pre-service teacher-rated and student-rated aspects of quality of teaching

Comparing self-perceived quality of teaching to students’ perception can be used in higher education to improve the quality of teaching of pre-service teachers in teacher education. However, comparing these measurements from different perspectives is only meaningful if the same constructs are being measured. To shed light on this comparison’s meaningfulness, we scrutinised whether aspects of quality of teaching are measured in the same way across pre-service teachers and their students by means of measurement invariance analyses. To do so, 272 pre-service teachers in teacher education rated aspects of their quality of teaching, and were rated by their 4851 students. Measurement invariance across these perspectives was tested in multilevel structural equation models. Strong measurement invariance held for two aspects of quality of teaching; for the third, one item lacked weak measurement invariance. Pre-service teachers perceived their quality of teaching lower than their students. In conclusion, aspects of quality of teaching can be compared across perspectives, and teacher education should encourage pre-service teachers to use students’ feedback as a valuable resource for improving their quality of teaching.     

Enhancing Student Learning in Food Engineering Using Computational Fluid Dynamics Simulations

Abstract: The current generation of students coming into food science and engineering programs is very visually oriented from their early experiences. To increase their interest in learning, new and visually appealing teaching materials need to be developed. Two diverse groups of students may be identified based on their math skills. Food science students tend to find it difficult to use mathematics as a problem‐solving tool for food engineering problems. Food engineering students, on the other hand, should be challenged to use emerging mathematical tools to develop their problem‐solving skills. Therefore, the approach of this project involved the development of a curriculum to train undergraduate food engineers in the effective use of computational fluid dynamics (CFD) software to solve food engineering problems by engaging them in the creation of food engineering teaching tools. These CFD outputs were then used as innovative teaching tools for the food science students. In this paper, this concept will be illustrated by unsteady‐state heat transfer and fluid flow problems. To evaluate the efficiency of the teaching materials developed, a student focus group was asked to answer the same quiz following a conventional and CFD output aided teaching session. The assessment result showed an improved understanding of the subject after the CFD teaching session. These visual aids were excellent tools to illustrate the validity of the formulas presented in class. In addition, the new visual materials enabled a better understanding of the relationships among different process parameters. In general, this helped the food science students better appreciate the food engineering concepts that govern food processing operations.     

成果导向的区域经济学研究生课程教学改革研究

基于成果导向理念,将单一的授课过程整合为“教师知识传授”和“学生论文创作”两线并行的过程,从课程设计思路、课程内容体系、课程授课方法和课程成绩考评四个方面探讨并总结如何对研究生区域经济学课程教学进行改革,最终目的是通过过程控制来保证学生完成一篇较高质量的论文,并能够发表在一定水准的专业期刊上。同时在这一过程中通过“干中学”的方式培养研究生的学术研究能力。     

Cooperative Learning: A Motivational Tool to Enhance Student Persistence,Self‐Regulation,and Efforts to Please Teachers and Parents

ABSTRACT

The effects of cooperative group learning on students’ persistence, self‐regulation, and efforts to please teachers and parents were examined. Eighty‐one high school geometry students were randomly assigned to either a cooperative learning or traditional lecture group. Twenty‐seven students received cooperative group instruction for nine weeks and then received traditional classroom instruction for nine weeks. Twenty‐five students received traditional instruction for nine weeks and then received cooperative group instruction for nine weeks. Twenty nine students received traditional classroom instruction for 18 weeks. Participants completed pre, post, and post‐posttest motivation questionnaires at each phase of the project. Students in the cooperative group classrooms exhibited significantly greater gains in persistence, self‐regulation, and efforts to please their parents and teacher. The implications of these findings for motivation theory and cooperative group structures are discussed.     

Outcomes of first year secondary students in a computer‐augmented physics program on measurement

Measurement is a foundational topic in secondary school physics that must be taught to all beginning secondary education students in Kenya. The secondary level offers education for students who are aged between 12‐ and 18‐years‐old. Physics teachers in the Rift Valley province identified the topic of measurement as an area that is difficult to teach through traditional methods. This study explored the effectiveness of a computer‐augmented physics (CAP) program on teaching the topic of measurement to first year secondary students. A total of 118 secondary education students (65 males and 53 females) participated in the study. They were randomly selected and randomly assigned to three similar classrooms situated in three schools easily accessible by the Njoro‐Menengai and Nakuru‐Marigat roads better and served as the treatment and control groups. Except for the treatment group, all groups received the same course content for a period of six weeks. The findings of the study affirmed the impact of innovation on the students’ learning outcomes in that the mean gains of the participants in the CAP treatment were significantly higher than that of their counterparts in the regular program. Also, the results indicated that the mean differences between the experimental group and the control group were statistically significant in favour of the treatment group. The findings also showed no relationship between the participants’ gender and their learning outcomes. The study concludes that the use of the computer to augment conventional physics teaching has major implications for secondary physics in this area.     

From Public Education to Educational Publics

Students tend to comprehend little and lose focus of classroom instruction when their teachers fail to use instructional strategies that match students’ learning styles. Differentiated instruction can alleviate or eliminate this disengagement. This article describes a case involving a child having difficulty learning and shows how differentiated instruction was used to help this student learn. The author describes the theories on which differentiated instruction is based and provides practical strategies teachers can use to implement this method of teaching.     

初一学生测量估计能力的教学干预

测量能力是把待测定的量同一个作为标准的同类量进行比较的能力,保证了数和量之间新的一系列联系的形成.经过教学干预,初中生的估测能力可得到显著提高:在任务形式、题目形式、性别、学业水平中表现出了一致的提升,但在具体提升程度上存在一些差异;在性别、问题形式和学业水平因素上,教学干预中要充分考虑多种因素,恰当运用不同方法,因材施教;对初中生进行估测的教学干预训练是可行的和有效的,在教育中应注意这方面能力的重视和培养.     

Investigating the impacts of targeted professional development around models and modeling on teachers' instructional practice and student learning

Developing understanding of models and proficiency with modeling practice is challenging for both teachers and students. This 2‐year study first investigated existing instructional strategies employed by teachers while teaching Earth and Space Science with dynamic physical models. Summer professional development introduced a conceptual framework, based on analogical reasoning, to help students strengthen and deepen the connections they make between a model and its real‐world referent. The framework draws explicit attention to correspondences and non‐correspondences between model and referent, an often overlooked component of modeling practice which underpins the ability to evaluate and thus improve a model. Teachers were guided to reflect on their own instructional use of models and to plan for integrating specific instructional strategies around models into their Year 2 practice. Classroom observation data reveal that from Years 1 to 2, teachers shifted from a more didactic approach in which they used physical models primarily as tools for demonstration toward more student engagement with models as problem‐solving tools. On an assessment measuring their students' ability to reason with and about models, pre‐post learning gains were higher in Year 2 than Year 1 across students at all ability levels. Together, these findings present evidence that teachers can learn to guide their students toward using physical models in ways that approximate key aspects of how scientists use runnable models, as envisioned by the Developing and Using Models practice of the Next Generation Science Standards.     

《邓小平理论概论》课的多媒体教学探讨

在政治理论课的教学中，运用多媒体技术进行授课，是教学手段现代化的重要标志和必然要求。《邓小平理论概论》课更适合于这方面的改革。应用多媒体技术教学，构建陕乐的教学环境，有利于提高理论课的教学质量，从而提高教学效果。