22 research outputs found

    Environmental Citizenship in Primary Formal Education

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    The concept of Environmental Citizenship, as it has been developed in this project, calls for the development of specific awareness, attitudes, skills, behaviours and competences that need to be cultivated from early childhood for active civic participation. Primary formal education could provide opportunities for the achievement of these goals. In this chapter, we elaborate on how Environmental Citizenship, which provides the specifics of age and formal settings, could be approached and the educational strategies that could be recommended or avoided based on the existing literature. This chapter also provides an overview of the most important educational aims regarding the development of Environmental Citizenship in primary formal education. These include environmental sensitivity, a sense of justice, a basic understanding of ecological systems, necessary skills for the investigation of ecological and social phenomena, and action skills that relate to active participation in community issues. We suggest that successful educational interventions, integrated pedagogical approaches and key designing principles could promote Environmental Citizenship at primary schools. In addition, effective training and professional development programmes can equip teachers with the knowledge, values, skills and strategies necessary to implement Environmental Citizenship at this level

    A brief review of the complexities of teaching and learning chemical equilibrium with specific reference to Malaysia

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    The purpose of this study was to review the extant literature on chemical equilibrium research in high school chemistry. The review involved understanding of the nature of chemical equilibrium, particularly about chemical reactions not going to completion, the reversibility of chemical reactions and the idea of dynamic equilibrium. Associated with these understandings was the derivation of the Equilibrium Law and the significance of the equilibrium constant followed by the use of Le Chatelier's Principle including the limitations of this principle. The review then focused on the common alternative conceptions associated with the chemical equilibrium concept. The study next considered these features in the Malaysian context. For this purpose, the researchers formulated an instructional program relevant to the Malaysian Higher School Certificate curriculum that was implemented over 11 hours with 56 high-achieving students in Year 12 from a private secondary school. To evaluate students' understanding of chemical equilibrium concepts after instruction the Chemical Equilibrium Conceptual Test-1 (CECT-1) was administered after instruction. The test consisted of 10 two-tier multiple-choice items that were adapted from previously developed questionnaires. The results indicated very limited understanding of the relevant concepts. The total scores in the CECT-1 ranged from 0 to 9 (out of a maximum score of 10) with a mean score of 5.04. Less than 50% of students correctly answered five of the 10 items. The findings suggest the need for teachers to address students' preconceptions about chemical equilibrium concepts and use appropriate strategies to enable students to acquire scientifically acceptable understandings

    Investigating high school students’ understanding of chemical equilibrium concepts

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    © 2015 by iSER, International Society of Educational Research. This study investigated the year 12 students’ (N = 56) understanding of chemical equilibrium concepts after instruction using two conceptual tests, the Chemical Equilibrium Conceptual Test 1(CECT-1) consisting of nine two-tier multiple-choice items and the Chemical Equilibrium Conceptual Test 2(CECT-2) consisting of four structured questions. Both these tests were administered before and after the intervention. Students’ responses to the items in both the instruments indicated limited understanding of the various concepts related to chemical equilibrium. Less than 50% of the students provided correct responses to four of the nine items in the CECT-1. The total scores in the CECT-1 ranged from 0 to 8 with a mean score of 4.14 (out of a maximum of 9). In the CECT-2 the total scores ranged from 7 to 17 with a mean score of 11.0 out of a maximum score of 22. Almost half the number of students (44.6%) scored less than 50% of the total marks in the CECT-2; only 0% to 42.9% of students scored the maximum possible marks for each of the four items while achievement in all four items of the CECT-2 was below 50%. The findings will be valuable and assist teachers in planning their instruction on chemical equilibrium by taking into consideration students’ preconceptions about the topic

    Understanding of Basic Particle Nature of Matter Concepts by Secondary School Students Following an Intervention Programme

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    Grades 10 and 11 students’ (N=172) understanding of particle theory concepts was assessed using the Particle Theory Diagnostic Instrument (PTDI), consisting of 11 two-tier multiple-choice items in a pretest–posttest design after implementing an intervention instructional programme. The intervention programme involving eight lessons of about 45-min duration each included teacher demonstrations and student practical activities followed by class discussions to explain students’ observations. The 11 items assessed understanding in three key conceptual categories: (1) intermolecular spacing in matter (CC1), (2) the influence of intermolecular forces on changes of state (CC2), and (3) diffusion in liquids and gases (CC3), using a quantitative methodology. There was a statistically significant improvement in overall mean scores among students from the pretest (M=4.08, SD=1.79) to the posttest [M=6.04, SD=2.49, t (171)=10.10, p<0.001]. However, the students did not display a good understanding about the concepts in the three conceptual categories: only 30.8% of students correctly answered all four items in CC1, 7.0% correctly answered all three items in CC2, and 16.3% correctly answered all four items in CC3

    Evaluation of an Intervention Instructional Program to Facilitate Understanding of Basic Particle Concepts Among Students Enrolled in Several Levels of Study

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    The efficacy of an intervention instructional program was evaluated to facilitate understanding of particle theory concepts among students (N = 190) using a diagnostic instrument consisting of eleven two-tier multiple-choice items in a pre-test – post-test design. The students involved were high school students, undergraduates and postgraduates from six educational levels. The eleven items evaluated understanding in three key conceptual categories: (1) intermolecular spacing in matter, (2) the influence of intermolecular forces on changes of state and (3) diffusion in liquids and gases. The intervention program proved effective in improving students' overall understanding of particle theory concepts, with statistically significant improvement in overall scores among students in five of the six groups. However, only 25-46% of the students displayed consistent understanding of the concepts in the three conceptual categories

    Reversible Reactions: Extent of Reaction and Theoretical Yield

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