INFLUENCE OF NANOTECHNOLOGY RELATED SSI PROGRAM ON COMPETENCIES OF HIGH SCHOOL STUDENTS IN KOREA

Author(s):  
Hae-Ae Seo ◽  
◽  
Hye-Sook Lee ◽  
Soonok Kim ◽  
◽  
...  

The study aimed to examine how a nanotechnology related SSI program influences on key competencies of high school students in Korea. Results showed that some competencies were significantly increased, while ability to work collaboratively in a group was not. Inclusion of a real life context and inquiry approach were important and specific instructional strategies which can develop certain competencies effectively. Implications for teaching such programs can be further discussed. Keywords: socio-scientific issues, competencies, nanotechnology, South Korea.

2001 ◽  
Vol 24 (4) ◽  
pp. 571-574 ◽  
Author(s):  
SUNGHYUN HAN ◽  
MINJA KIM CHOE ◽  
MYUNG-SUN LEE ◽  
SUN-HEE LEE

Author(s):  
Isaac Bengre Taley ◽  
Matilda Sarpong Adusei

Helping junior high school students to use calculators and computers for problem solving and investigating real-life situations is an objective of the junior high school mathematics curriculum in Ghana. Ironically, there is a technological drought in junior high school mathematics instruction in Ghana, with a suspicion that mathematics teachers’ competency in the use of calculators for teaching may be the source of this lack of use. This study sought to establish a correlation between junior high school mathematics teachers’ competence and the motivation supporting the use of calculators in teaching.  A descriptive survey comprising of a test and questionnaire was used to collect data from junior high school mathematics teachers in an educational district in Ghana. Teacher characteristics such as educational attainment, age, and gender in relation to teachers’ competency in the use of calculators were discussed in the study. The results showed that about 70% of the teachers exhibited a low level of calculator competence. Besides, novice teachers outperformed expert teachers in the calculator competency-based test. Additionally, mathematics teachers’ enthusiasm for using calculators in teaching was directly associated with the teachers’ level of competency. The findings may send a signal to stakeholders in their efforts to revising the Ghana JHS curriculum in order to actualize the curriculum desire for the integration of technology in the teaching and learning of JHS mathematics.


2019 ◽  
pp. 073194871988734
Author(s):  
Kaitlin Bundock ◽  
Leanne S. Hawken ◽  
Sharlene A. Kiuhara ◽  
Breda V. O’Keeffe ◽  
Robert E. O’Neill ◽  
...  

Implementing an integrated sequence of concrete-representational-abstract depictions of mathematics concepts (CRA-I) can improve the mathematics achievement of students with disabilities, and explicit instructional strategies involving problem-solving heuristics and student verbalizations can help facilitate students’ conceptual understanding of mathematics. Combining CRA-I and explicit instructional strategies may increase students’ conceptual understanding and ability to express mathematical reasoning through writing. This study included three ninth-grade students with disabilities, and employed a multiple-probe design across-participants to investigate a functional relation between an explicit instructional strategy within a CRA-I framework and high school students’ with disabilities proficiency in solving rate of change problems. Results showed that all three students improved their mathematics scores (combined Tau-U effect size = 0.77, p < .001) and maintained improvements during a 1- to 7-week post-instruction phase. Implications for research and practice related to mathematics instruction and intervention specifically for students with learning disabilities are discussed.


1994 ◽  
Vol 1 (3) ◽  
pp. 190-196
Author(s):  
Linda J. C. Taylor ◽  
Jeri A. Nichols

Graphing calculators are revolutionizing the learning and teaching of mathematics. Students can view and manipulate graphs of functions in a matter of seconds. Such features as “plot,” “graph,” “trace,” and “zoom” offer opportunities for users to develop an understanding of the terms variable and function. According to the Curriculum and Evaluation Standards for School Mathematics (NCTM 1989), these concepts are vital aspects of the middle school curriculum. According to the standards document, “[A]n ideal 5-8 mathematics curriculum would expand students' knowledge of numbers,… patterns and functions, and the fundamental concepts of algebra” (pp. 65-66). In addition, “[T]echnology, including calculators, computers, and videos, should be used when appropriate” (p. 67). It stand to reason that tools to aid in understanding such concepts as variable and function, specifically graphing calculators, should not be reserved for high school juniors and seniors. This article discusses the use of graphing calculators by students of middle school age in an enrichment program for academically able, but economically disadvantaged, students. The exercises described helped students develop an understanding about variable and function. Students were actively engaged in problem solving that involved hands-on, real-life activities.


2009 ◽  
Vol 8 (1) ◽  
pp. 62-71 ◽  
Author(s):  
Nancy Dumais ◽  
Abdelkrim Hasni

Understanding real-life issues such as influenza epidemiology may be of particular interest to the development of scientific knowledge and initiation of conceptual changes about viruses and their life cycles for high school students. The goal of this research project was to foster the development of adolescents' conceptual understanding of viruses and influenza biology. Thus, the project included two components: 1) pre- and posttests to determine students' conceptions about influenza biology, epidemics/pandemics, and vaccination; and 2) design an intervention that supports conceptual change to promote improvements in influenza knowledge based on these primary conceptions. Thirty-five female students from a high school biology class participated in a series of instructional activities and pre- and posttest assessments. Results from the pretest indicated that high school students exhibit a limited understanding of concepts related to viruses. Six weeks after an intervention that promoted active learning, results from a posttest showed that conceptions about influenza are more accurately related to the provided scientific knowledge. Although adolescents have nonscientific models to explain influenza biology, we showed that a carefully designed intervention can affect students' knowledge as well as influence the implementation of health education programs in secondary schools.


2020 ◽  
Vol 8 (2) ◽  
pp. 247-258
Author(s):  
Kaharuddin Kaharuddin ◽  
Ananda Rahmadana

In this millennial era, English speaking skills are very necessary for young learners, especially for Vocational High Schools students. However, few teachers still have difficulties in choosing the right technique to teach the speaking skills. Consequently, students feel that speaking is the hardest skill in English. This paper is aimed at discussing how to improve the students’ transactional speaking skills (group discussion) using problem-based group discussion technique at Vocational High School 5 Gowa. A quantitative research design was used to carry out this study with support from the data collection instrument i.e. speaking video test (group discussion). The design of this study conducted using a quasi-experimental with nonequivalent control group design. Twenty (20) students in two classes i.e. ten students for the experimental class and ten students for the controlled class of the intermediate level were purposively selected to participate in this study. The results of this study showed that the problem-based group discussion technique is able to improve students’ transactional speaking skills. It was proved by the result of the statistical analysis of the level significance P = 0.05 with the degree of freedom (df) = 9 indicated that the t-test values of the students’ transactional speaking skills (3.498) was higher than the t-table value (2.262). The outcome of this research indicates that this technique is effectively able to improve the students’ transactional speaking skills in exchanging information, taking a part in formal discussions and even learning to work in real-life situations


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