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1.
ABSTRACT

Background and Context: Current introductory instruction fails to identify, structure, and sequence the many skills involved in programming.

Objective: We proposed a theory which identifies four distinct skills that novices learn incrementally. These skills are tracing, writing syntax, comprehending templates (reusable abstractions of programming knowledge), and writing code with templates. We theorized that explicit instruction of these skills decreases cognitive demand.

Method: We conducted an exploratory mixed-methods study and compared students’ exercise completion rates, error rates, ability to explain code, and engagement when learning to program. We compared material that reflects this theory to more traditional material that does not distinguish between skills.

Findings: Teaching skills incrementally resulted in improved completion rate on practice exercises, and decreased error rate and improved understanding of the post-test.

Implications: By structuring programming skills such that they can be taught explicitly and incrementally, we can inform instructional design and improve future research on understanding how novice programmers develop understanding.  相似文献   

2.
Background and purpose:

The purpose of this study was to investigate the comparative effects of a prediction/discussion-based learning cycle (HPD-LC), conceptual change text (CCT) and traditional instruction on 10th grade students’ understanding of genetics concepts.

Sample:

Participants were 112 10th basic grade male students in three classes of the same school located in an urban area. The three classes taught by the same biology teacher were randomly assigned as a prediction/discussion-based learning cycle class (n?=?39), conceptual change text class (n?=?37) and traditional class (n?=?36).

Design and method:

A quasi-experimental research design of pre-test–post-test non-equivalent control group was adopted. Participants completed the Genetics Concept Test as pre-test–post-test, to examine the effects of instructional strategies on their genetics understanding. Pre-test scores and Test of Logical Thinking scores were used as covariates.

Results:

The analysis of covariance showed a statistically significant difference between the experimental and control groups in the favor of experimental groups after treatment. However, no statistically significant difference between the experimental groups (HPD-LC versus CCT instruction) was found.

Conclusions:

Overall, the findings of this study support the use of the prediction/discussion-based learning cycle and conceptual change text in both research and teaching. The findings may be useful for improving classroom practices in teaching science concepts and for the development of suitable materials promoting students’ understanding of science.  相似文献   

3.
Abstract

To help introductory programming students gain an integrated, generative understanding of LISP, we designed, implemented, and evaluated the LISP Knowledge Integration Environment (LISP‐KIE). The LISP‐KIE reflected a conceptual framework which featured (a) scaffolding of students as they control their own learning rather than telling students what they should know and (b) activities engaging students in expert problem‐solving practices rather than exercises emphasizing syntax and small problems. We conducted two in‐depth studies and one comparison study to show that the LISP‐KIE fostered knowledge integration. By knowledge integration, we mean linked, organized, and connected information about such aspects of programming as design, testing, specific problem solutions, and self‐monitoring.  相似文献   

4.
Background: University physics students were engaged in open-ended thermodynamics laboratory activities with a focus on understanding a chosen phenomenon or the principle of laboratory apparatus, such as thermal radiation and a heat pump. Students had access to handheld infrared (IR) cameras for their investigations.

Purpose: The purpose of the research was to explore students’ interactions with reformed thermodynamics laboratory activities. It was guided by the research question: How do university physics students make use of IR cameras in open-ended investigation of thermal radiation as a phenomenon?

Sample: The study was conducted with a class of first-year university physics students in Sweden. The interaction with the activities of four of the students was selected for analysis. The four students are males.

Design and methods: We used a qualitative, interpretive approach to the study of students’ interaction. The primary means of data collection was video recording of students’ work with the laboratory activities and their subsequent presentations. The analysis focused on how IR cameras helped students notice phenomena relating to thermal radiation, with comparison to previous research on students’ conceptions of thermal radiation.

Results: When using the IR camera, students attended to the reflection of thermal radiation on shiny surfaces, such as polished metals, windows or a whiteboard and emissive properties of surfaces of different types. In this way, they went beyond using the technology as a temperature probe. Students were able to discuss merits and shortcomings of IR cameras in comparison with digital thermometers.

Conclusions: With the help of IR cameras, university physics students attend to thermal phenomena that would otherwise easily go unnoticed.  相似文献   

5.
《Education 3-13》2012,40(1):66-75
ABSTRACT

This study aims to analyse the potentialities of using Personal Meaning Maps to assess school children’s learning in a visit to a Planetarium. A total of 123 primary students were involved. They were asked to create a PMM, and a drawing, before and after the visit. The results suggest that the visit enhanced the degree to which students generate words and conceptual categories to describe their understanding of the suggested concepts. PMMs seemed to be a good tool to evaluate the impact of the activities on students’ ideas about the thematic explored. Drawings helped to understand the main misconceptions.  相似文献   

6.
ABSTRACT

Concept inventories (CIs) are assessment instruments designed to measure students’ conceptual understanding of fundamental concepts in particular fields. CIs utilise multiple-choice questions (MCQs), and specifically designed response selections, to help identify misconceptions. One shortcoming of this assessment instrument is that it fails to provide evidence of the causes of the misconceptions, or the nature of students’ conceptual understanding. In this article, we present the results of conducting textual analysis on students’ written explanations in order to provide better judgements into their conceptual understanding. We compared students’ MCQ scores in Signals and Systems Concept Inventory questions, with the textual analysis utilising vector analysis approaches. Our analysis of the textual data provided the ability to detect answers that students identified as a ‘guessed’ response. However, the analysis was unable to detect if conceptually correct ideas existed within the ‘guessed’ responses. The presented approach can be used as a framework to analyse assessment instruments that utilise textual, short-answer responses. This analysis framework is best suited for the restricted conditions imposed by the short-answer structure.  相似文献   

7.

Researchers of students’ concepts and conceptual change frequently draw analogies to the history of science. The analogy is generally presented when comparing students’ scientific concepts to similar ones in the history of science. We have tried to show the importance of this analogy on a higher level ‐‐ that of understanding the process of conceptual change in general among students.

This article outlines a number of lines in the philosophy of science and analyses differences between the perspectives of a number of broadly constructivist positions which have developed during this century.

The analysis is used to clarify the theoretical basis on which research into student conceptual change is conducted and interpreted.  相似文献   

8.
This study investigated Indonesian and Japanese senior high-school students’ understanding of electrochemistry concepts.

Sample

The questionnaire was administered to 244 Indonesian and 189 Japanese public senior high-school students.

Design and methods

An 18-item multiple-choice questionnaire relating to five conceptual categories (reactions occurring during electrolysis, differences between electrolytic and voltaic cells, movement of ions in voltaic cells, poles in voltaic cells, voltaic cell reactions) was administered.

Results

The findings of this study show that difficulties and alternative conceptions previously reported in the literature are held equally by students from a developing and developed country, Indonesian and Japan respectively.

Conclusions

Collectively, the findings suggest that students’ understanding of electrochemistry concepts is relatively weak. Students from both samples shared common difficulties and displayed several alternative conceptions dealing with electrolysis, electricity flow, the voltaic cell and the electrode reactions. Not surprisingly, the students displayed limited consistency in understanding of the concepts in the five categories. This study has implications for teaching and learning, particularly in classroom discussions using models and computer animations in order to reinforce understanding at the sub-microscopic level.  相似文献   

9.
Abstract

Purpose: This article examines and evaluates the potential contributions from action learning and action research with stakeholders to higher education in agriculture and food systems.

Design/Methodology/Approach: The research is based on our experiences over the past two decades of running PhD courses and an MSc degree programme in Agroecology in Norway that have attracted students from the Nordic region and other countries.

Findings: We conclude that collaborating with non-university stakeholders as an integral part of a university course or programme serves four main purposes, two directly related to learning and two that can be considered as practical implications. Firstly, it enables learning about complex topics, a learning that cannot be achieved by merely reading or listening. Secondly, the real-life flare of such activities provides the students with enthusiasm and energy to delve into theory.

Practical Implications: Thirdly, students collaborating with non-university stakeholders connect university and society. Fourthly, this process builds social relevance and civic engagement not found in conventional courses or curricula.

Originality/Value: The article presents conceptual foundations and practical implementation of a unique educational programme in agriculture and food systems.  相似文献   

10.
ABSTRACT

Engineering students on control courses lack a deep understanding of equilibrium and stability that are crucial concepts in this discipline. Several studies have shown that students find it difficult to understand simple familiar or academic static equilibrium cases as well as dynamic ones from mechanics even if they know the discipline’s criteria and formulae. Our aim is to study the impact of a specific and innovative classroom session, containing well-chosen situations that address students’ misconceptions. We propose an example of Active Learning experiment based both on the Didactical Engineering methodology and the Conceptual Fields Theory that aims at promoting a conceptual change in students. The chosen methodology allows, at the same time, a proper design of the student learning activities, an accurate monitoring of the students’ rational use during the tasks and provides an internal tool for the evaluation of the session’s efficiency. Although the expected starting conceptual change was detected, it would require another activity in order to be reinforced.  相似文献   

11.
Abstract

Examining how teachers structure the activities in a unit and how they facilitate classroom discussion is important to understand how innovative technology-rich curricula work in the context of classroom instruction. This study compared 2 enactments of an inquiry curriculum, then examined students' learning outcomes in classes taught by 2 teachers. The quantitative data show that there were significant differences in the learning outcomes of students in classes of the 2 teachers. This study then examined classroom enactments by the 2 teachers to understand the differences in the learning outcomes. This research specifically focused on how teacher-led discussions (a) helped connect the activities within a curriculum unit and (b) enabled deeper conceptual understanding by helping students make connections between science concepts and principles. This study examined the role that teacher facilitation played in helping students focus on the relations between the various activities in the unit and the concepts that they were learning. The results point to important differences in the 2 enactments, helping to understand better what strategies might enable a deeper conceptual understanding of the science content.  相似文献   

12.
ABSTRACT

There exists bias among students that learning organic chemistry topics requires rote learning. In this paper, we address such bias through an organic chemistry activity designed to promote argumentation. We investigated how pre-service science teachers engage in an argumentation about conformational analysis. Analysis of the outcomes concentrated on (a) pre-service teachers’ understanding of conformations of alkanes (b) the nature of the pre-service teachers’ discourse; (c) the quality of pre-service teachers’ argumentation; and (d) pre-service teachers’ spatial ability. Various measures were used to trace (a) conceptual understanding through the answers in the writing frames, (b) the nature of the pre-service teachers’ discourse using two different codes, (c) the quality of pre-service teachers’ argumentation by counting the number of episodes with higher-level argumentation, and (d) spatial ability by Spatial Ability Test. The results showed that high performing groups had multiple rebuttals in their argumentation and low performing groups had problems in evaluating the credibility of evidence. Furthermore, we observed that spatial abilities play an important role in pre-service teachers’ engagement in argumentation. The findings help understanding of how to further enhance pre-service teachers’ conceptual understanding and engagement in argumentation regarding organic chemistry concepts.  相似文献   

13.
ABSTRACT

Background and Context: Vygotsky's sociocultural theory emphasises the importance of language, mediation, and the transfer of skills and knowledge from the social into the cognitive plane. This perspective has influenced the development of PRIMM (Predict, Run, Investigate, Modify, Make), a structured approach to teaching programming.

Objective: The objective of the study was to find out if using PRIMM to teach programming had an impact on learner attainment in secondary school, and the extent to which it was valuable for teachers.

Method: We evaluated the use of PRIMM in 13 schools with 493 students aged 11-14 alongside a control group, using a mixed-methods approach. Teachers delivered programming lessons using the PRIMM approach for 8-12 weeks. Data were collected via a combination of a baseline test, a post-test to compare control and experimental groups, and teacher interviews.

Findings: Learners performed better in the post test than the control group. Teachers reported several benefits of the PRIMM approach, including that PRIMM helped them to teach effectively in mixed-ability classes, enabling all learners to make progress.

Implications: PRIMM makes a contribution to programming education research by building on previous work in effective pedagogy for teachers, and encouraging the use of language and dialogue to facilitate understanding.  相似文献   

14.
Abstract

This study addressed the role of the reflection-informed learning and instruction (RILI) model on students’ academic success by using CourseMIRROR mobile system. We hypothesized that prompting students to reflect on confusing concepts stimulates their self-monitoring activities according to which students are expected to review their understanding, search for related knowledge, and try to identify the confusing concepts. With this student-reflection information, instructors can thus address students’ difficulties effectively, which can lead to enhanced academic success. We tested our hypothesis by conducting a semester-long quasi-experimental study in undergraduate industrial engineering classes (N?=?153). The analyses revealed that students in the RILI condition performed significantly better than students in the control condition (Cohen’s d = .82). In addition, reflection analysis showed that both quality and quantity of reflections were significantly associated with exam performance. Surveys indicated users highly valued the RIFI model; they rated CourseMIRROR favorably and said they would continue to use it in future classes.  相似文献   

15.
ABSTRACT

The arts animate learning because they are inherently experiential and because of their potential to develop creative and critical thinking skills in students. These same skills are valued in science, technology, engineering, and math (STEM) education, but the arts have not been consistently included in STEM lessons. We transformed our STEM programming into STEAM programming (STEM plus arts) by creating an innovative partnership between two informal learning environments, the Braithwaite Fine Arts Gallery and the Garth and Jerri Frehner Museum of Natural History at Southern Utah University. The partnership resulted in a STEAM learning program that integrated art and science for K-12 students. We incorporated an art exhibition, a hands-on lesson in art, and an immersive lesson in science that culminated in a student project that merged concepts from both art and science. Through programs each fall from 2012 through 2014, we helped over 6,000 students from southern Utah use concepts from art to deepen their understanding of caterpillar defenses, fish ecomorphology, and pollinator biology.  相似文献   

16.
ABSTRACT

The study provides an insight into how teachers may facilitate students’ group learning in science with digital technology, which was examined when Norwegian lower secondary school students engaged in learning concepts of mitosis and meiosis. Quantitative and qualitative analyses of the teacher’s assistance draw on Galperin’s conceptualisation of learning.

Findings reveal patterns in the teacher’s guidance: the teacher fulfilled the orienting, executive and controlling functions while assisting students in identifying the key features of mitosis and meiosis and solving the compare and contrast task. The teacher relied on and interplayed with the available mediational resources: compare and contrast task, digital animations, and collaborating peers. However, it was the compare and contrast task that demonstrated an approach to study scientific concepts which may have contributed to the development of learners’ understanding about to engage in learning in science. By adopting such an approach, learning activity has the potential to not only help students to achieve learning outcomes but it acquires a functional significance, becoming a tool in the learning process aimed at the development of students’ as learners. The digital animations, in turn, demonstrated scientific processes that were otherwise invisible for students and triggered group discussions. The study, therefore, raises questions about the need for practitioners’ awareness of the type of support the technology and other resources provide to assist both conceptual learning and enhancing students’ agency in learning to learn.  相似文献   

17.
ABSTRACT

Science education today has become increasingly focused on research into complex natural, social and technological systems. In this study, we examined the development of high-school biology students’ systems understanding of the human body, in a three-year longitudinal study. The development of the students’ system understanding was evaluated using the Components Mechanisms Phenomena (CMP) framework for conceptual representation. We coded and analysed the repertory grid personal constructs of 67 high-school biology students at 4 points throughout the study. Our data analysis builds on the assumption that systems understanding entails a perception of all the system categories, including structures within the system (its Components), specific processes and interactions at the macro and micro levels (Mechanisms), and the Phenomena that present the macro scale of processes and patterns within a system. Our findings suggest that as the learning process progressed, the systems understanding of our students became more advanced, moving forward within each of the major CMP categories. Moreover, there was an increase in the mechanism complexity presented by the students, manifested by more students describing mechanisms at the molecular level. Thus, the ‘mechanism’ category and the micro level are critical components that enable students to understand system-level phenomena such as homeostasis.  相似文献   

18.
ABSTRACT

This paper uses mixed methods to explore perceptions of international-mindedness within two case study schools in Istanbul, Turkey: a national school with mostly Turkish students and an international school with students from many nationalities. Using a conceptual framework developed by an international education programme, the authors critically analyse pillars of international-mindedness: multilingualism, intercultural understanding, and global engagement. Findings reveal that the national school was striving to overcome limitations of homogeneity, while the international school struggled to address its assumptions that a heterogeneous population alone would be enough to encourage intercultural understanding. Neither school had developed clear conceptual links among multilingualism, intercultural understanding, and global engagement. Thus, deliberate efforts are needed to provide students with experiences that foster international-mindedness. Other researchers and educators can use this framework and associated methods to examine how international-mindedness is implemented in different schools in other regions of the world.  相似文献   

19.
ABSTRACT

Previous research shows that many students find it difficult to learn computer programming. To learn computer programming includes both gaining theoretical understanding and learning to develop programmes in practice. To this end, teachers commonly design programming exercises for the students in the computer laboratory. To be able to improve the process of designing such exercises, there is a need of a more detailed understanding of the interaction between learning of theory and learning of practice in laboratory sessions. In this paper, an approach for investigating this interaction is proposed. Theoretically, the approach is based on phenomenography and variation theory. To illustrate the approach, it is demonstrated in detail how it was applied to a small but rich case of empirical data from a computer laboratory session. The main result presented here is the new approach for analysing data. In addition, the results of the case study shed preliminary light on the interaction between learning of practice and learning of theory when students work with programming assignments in the laboratory.  相似文献   

20.
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