Students' science perceptions and enrollment decisions in differing learning cycle classrooms

This investigation examined 10th‐grade biology students' decisions to enroll in elective science courses, and explored certain attitudinal perceptions of students that may be related to such decisions. The student science perceptions were focused on student and classroom attitudes in the context of differing learning cycle classrooms (high paradigmatic/high inquiry, and low paradigmatic/low inquiry). The study also examined possible differences in enrollment decisions/intentions and attitudinal perceptions among males and females in these course contexts. The specific purposes were to: (a) explore possible differences in students' decisions, and in male and female students' decisions to enroll in elective science courses in high versus low paradigmatic learning cycle classrooms; (b) describe patterns and examine possible differences in male and female students' attitudinal perceptions of science in the two course contexts; (c) investigate possible differences in students' science perceptions according to their decisions to enroll in elective science courses, participation in high versus low paradigmatic learning cycle classrooms, and the interaction between these two variables; and (d) examine students' explanations of their decisions to enroll or not enroll in elective science courses. Questionnaire and observation data were collected from 119 students in the classrooms of six learning cycle biology teachers. Results indicated that in classrooms where teachers most closely adhered to the ideal learning cycle, students had more positive attitudes than those in classrooms where teachers deviated from the ideal model. Significantly more females in high paradigmatic learning cycle classrooms planned to continue taking science course work compared with females in low paradigmatic learning cycle classrooms. Male students in low paradigmatic learning cycle classrooms had more negative perceptions of science compared with males in high paradigmatic classrooms, and in some cases, with all female students. It appears that using the model as it was originally designed may lead to more positive attitudes and persistence in science among students. Implications include the need for science educators to help teachers gain more thorough understanding of the learning cycle and its theoretical underpinnings so they may better implement this procedure in classroom teaching. © 2001 John Wiley & Sons, Inc. J Res Sci Teach 38: 1029–1062, 2001     

The effects of summarization instruction on text comprehension of students with learning disabilities.

This study examined the effectiveness of a summarization strategy for increasing comprehension of expository prose in students with learning disabilities. Thirty students with learning disabilities from Grades 6 through 9 were randomly assigned to experimental and control groups. In addition, 15 students without disabilities served as a normal comparison group for comprehension. Students in the experimental condition were trained to criterion on five rules of summarization. Direct instruction in the summarization strategy significantly increased reading comprehension of the students in the experimental group. Strategy usage was maintained over time, and students were reported to generalize its use.     

Influence of text structure on learning counterintuitive physics concepts

The purpose of this study was to explore the influences of text structure on students' conceptual change. Case studies were conducted of three sections of physics (Physical World, Physics, and Honors Physics) for 8 months of an academic year. Qualitative data (including observation field notes, interviews, videotapes, audiotapes, and questionnaires) were analyzed from the perspective of grounded theory by constant comparison through the framework of social constructivism. Results showed that individuals used refutational text to change their alternative conceptions, find support for their scientific preconceptions, gain the language necessary to discuss their ideas, and acquire new concepts. We also found instances, however, when students ignored the text and persisted with their alternative conception, or when students found support for their nonscientific ideas from refutational text. In these cases, we found that either the refutation was not direct enough to be effective, or students' reading strategies were insufficient to facilitate conceptual change. In investigating the power of refutational text, we found that refutational text does cause cognitive conflict. We also discovered that while cognitive conflict may be necessary for conceptual change to occur, it is not sufficient. Although refutational text is effective on the average for groups of students, it will need to be supplemented by discussion for individuals. J Res Sci Teach 34: 701–719, 1997.     

先前知识和文本类型对听力理解的影响

实验选取了"圣诞罐"(访谈)和"萨满文化"(新闻报道)两个学生最不熟悉的话题来作为听力材料。结果表明:先前知识对两种话语类型听力理解均有显著促进作用,实验组和控制组听访谈的成绩均好于新闻报道。这些发现对英语听力教学具有启示意义,教师在听力教学过程中应充分利用学生的先前知识来提高听力能力。     

The effects of multimodal texts on science reading comprehension in Chilean fifth-graders: text scaffolding and comprehension skills

ABSTRACT

Reading comprehension is a crucial skill that elementary school students must develop in order to learn science. However, there is not yet enough research about the role that multimodal texts play in scaffolding student reading comprehension of complex scientific processes, such as energy transfer. This study explored how verbal and visual resources (scaffolding level) and individual differences (reading skills) contribute to science reading comprehension. One-hundred and sixty Chilean fifth-graders were assessed on reading skills, vocabulary, and prior science knowledge. A counterbalanced design was used to test two groups: Group 1 reads a text with low multimodal scaffolding and Group 2 reads a text with high multimodal scaffolding. Level of text scaffolding was determined by (1) image function, (2) visual-verbal relations, (3) presence of an explicit explanatory structure, and (4) lexico-grammatical resources. General monomodal and multimodal science reading comprehension were assessed with multiple-choice tests. An ANCOVA analysis revealed non-significant differences between groups after controlling for prior knowledge, fluency, and vocabulary. Likewise, a two-factor ANCOVA analysis showed that the high-multimodal scaffolding text significantly boosted science reading comprehension for low-skilled comprehenders. The paper discusses the implications of these findings for pedagogy and research, aiming to foster multimodal literacy for learning in content areas.     

Effects of response prompts and diagram comprehension ability on text and diagram learning in a college biology course

Embedded response prompts are an effective method to support multimedia learning. Response prompts are directives situated within instructional material. Responding to these prompts affects learners' cognitive operations. Different types of prompts affect learning differently due to variations in stimulated cognitive operations. This study compared three types of experimental response prompts; prompts to self-explain the contents of a page, prompts to attend to diagrams and text-diagram relations, and prompts to self-explanation text-diagram relations; and two control conditions. Three tasks that measure verbal text knowledge, diagram knowledge, or knowledge of text-diagram relations assessed learning. The effects of diagram comprehension ability were also considered. A 5 X 3 mixed model ANCOVA revealed an interaction between prompting conditions and posttest tasks. Diagram comprehension ability was associated with task performance but did not interact with conditions.     

Differential effects of verbal aptitude and study questions on comprehension of science concepts

Selective attention models predict that verbatim study questions can divert students from meaningfully encoding attributes of science concepts. The aptitude-treatment interaction (ATI) hypothesis predicts that such questions can be particularly dysfunctional to low-ability students. These predictions assume the measurement of true comprehension of concepts as a criterion. Eighth-grade students (n = 217) were randomly assigned to a text-only, text-question or a placebo treatment. The text verbally described five fossil types. The questions consisted of 28 fill-in-the-blank queries about the text. The posttest required students to visually identify and discriminate 40 fossil specimens as to fossil type. Comprehension of the concepts clearly took place-a fact substantiated by the very low scores obtained by the placebo group. As predicted (p < 0.05), low-verbal students performed better when provided with a text-only rather than a text-question treatment. In contrast, high-verbal students were less effected by the verbatim study questions. Main effects among these groups were also detected. Apparently such questions can overprompt students, resulting in their copying of words from a text to an answer-blank without semantically encoding (i.e., comprehending) the copied words.     

Computer-assisted foreign language learning: Effects of text,context, and gender on listening comprehension and motivation

A computer-based foreign language lesson was developed to study the effects of text, context, and gender on listening comprehension and motivation. A total of 109 fifth grade students responded to spoken commands, with text and a story absent or present. Presenting spoken language with text appeared to assist the development of listening skills. When text was present, students made fewer errors on the subsequent comprehension test and gave higher relevance and confidence motivation ratings than when text was absent. Girls demonstrated higher achievement than did boys and rated the lesson higher, indicating that girls tend to like different kinds of software than do boys. An interaction between context and gender regarding achievement was significant: Girls, but not boys, made fewer errors after a story-embedded lesson.     

Effects of student-generated drawing and imagination on science text reading in a computer-based learning environment

Educational technology research and development - The purpose of this study was to examine the effects of student-generated drawing and imagination on learning recall, learning transfer, and...     

Learning from text and video blogs: comprehension effects on secondary school students

Education and Information Technologies - Informational video blogs are a popular method of communication among students that may be fruitful educational tools, but their potential benefits and...     

Effects of varying text difficulty levels on second language (L2) reading attitudes and reading comprehension

This study investigated the effects of varying text difficulty on L2 reading attitudes and reading comprehension. To provide the optimal challenge for L2 reading, comprehensible input hypothesis postulates that choosing text slightly harder than the learner's current level will enhance reading comprehension. Fifty‐four freshmen from one university in central Taiwan were randomly divided into two groups. Students in the ‘i − 1’ group were given level 3 and level 4 Oxford Graded Readers while students in the ‘i + 1’ group were provided with level 5 and level 6. Quantitative data were obtained via the English Placement Exam and the Reading Attitudes Survey. Results from the pretest and posttest of the Reading Attitudes Survey suggest that the i − 1 group has gained significantly in reading attitudes, whereas no difference in reading attitude was identified with the i + 1 group. Results also indicate that varied difficulty levels of reading text did not significantly affect participants' reading comprehension.     

Relationships of general vocabulary, science vocabulary, and student questioning with science comprehension in students with varying levels of English proficiency

This study investigated the influence of general vocabulary knowledge, science vocabulary knowledge, and text based questioning on the science reading comprehension of three types of students who varied in their English language proficiency. Specifically, grade 5 English-Only speakers, English Language Learners in the United States, and students learning English as a Foreign Language in a Spanish-speaking country were compared across the aforementioned variables to examine their relationship to reading comprehension. Findings indicated that general vocabulary, science vocabulary, and questioning contributed significant variance to the explanation of science reading comprehension. However, no particular variable was found to interact with language proficiency in their contribution to science reading comprehension. Findings are discussed in terms of the roles that each variable could play in content area comprehension. Implications for content-area literacy instruction of second-language students are considered.     

Story grammar and comprehension and production of narrative prose by students with learning disabilities

This study investigated both quantitative and qualitative differences between subjects with and without learning disabilities (LD) across three grade levels on two tasks requiring active processing of story grammar. There was no evidence, for either task, of developmental differences in relation to either story comprehension or production. However, there were significant differences between students with LD and normally achieving students in the amount as well as the type of information included in the retellings and written stories. The results provide support for the hypothesis that students with LD have acquired a rudimentary but not fully developed schema for narrative prose.     

Effects of technology-enhanced constructivist learning on science achievement of students with different cognitive styles

Education and Information Technologies - The purpose of this study is to examine the effect of technology-enhanced constructivist learning on science achievement of seventh-grade students with...     

Prior knowledge,reading skill,and text cohesion in the comprehension of science texts

This study examined how text features (i.e., cohesion) and individual differences (i.e., reading skill and prior knowledge) contribute to biology text comprehension. College students with low and high levels of biology knowledge read two biology texts, one of which was high in cohesion and the other low in cohesion. The two groups were similar in reading skill. Participants' text comprehension was assessed with open-ended comprehension questions that measure different levels of comprehension (i.e., text-based, local-bridging, global-bridging). Results indicated: (a) reading a high-cohesion text improved text-based comprehension; (b) overall comprehension was positively correlated with participants' prior knowledge, and (c) the degree to which participants benefited from reading a high-cohesion text depended on participants' reading skill, such that skilled participants gained more from high-cohesion text.