What happens during high school chemistry laboratory sessions? A descriptive case study of the behaviors exhibited by three teachers and their students

1994 ◽  
Vol 5 (2) ◽  
pp. 37-47 ◽  
Author(s):  
Carmine L. DeCarlo ◽  
Peter A. Rubba
Keyword(s):  
High School ◽  
Chemistry Laboratory ◽  
High School Chemistry ◽  
Descriptive Case Study

Interactions of chemistry teachers with gifted students in a regular high-school chemistry classroom

2018 ◽  
Vol 19 (1) ◽  
pp. 122-134 ◽  
Author(s):  
Naama Benny ◽  
Ron Blonder
Keyword(s):  
High School ◽  
Special Needs ◽  
Gifted Students ◽  
Chemistry Laboratory ◽  
Laboratory Work ◽  
Regular Classroom ◽  
Abstract Concepts ◽  
High School Chemistry ◽  
Chemistry Teaching ◽  
Chemistry Teachers

Regular high-school chemistry teachers view gifted students as one of several types of students in a regular (mixed-ability) classroom. Gifted students have a range of unique abilities that characterize their learning process: mostly they differ in three key learning aspects: their faster learning pace, increased depth of understanding, and special interests. If gifted students are to develop their abilities and potential, and learn optimally in a regular classroom, the teaching must be adjusted to meet their special needs. Chemistry high-school curricula have built-in potential to cater to the special needs of gifted students. Chemistry learning entails laboratory work and comprehension of abstract concepts. In the classroom, the interactions between teachers and students are core events that trigger other class events. In the present study the interactions between teachers and gifted students in a regular classroom, which are specific for chemistry teaching, were studied. Two general categories of interactions with gifted students were found to be unique to the chemistry classroom: (1) interactions involving laboratory work and (2) interactions involving the challenge of teaching chemistry content. We found that since gifted students master abstract chemistry concepts quickly and with minimum scaffolding, no interactions regarding this aspect were reported. Gifted students do not need all the instruction time teachers usually devote to explaining abstract concepts in chemistry, concepts that are considered difficult for other students. The present study indicates the essential need of enhancing chemistry teachers’ knowledge regarding teaching gifted students in the chemistry classroom. This includes knowledge about how gifted students learn in general, and its adaptation to the chemistry classroom and the chemistry laboratory according to academic and curricular needs of the gifted students.

scholarly journals MOTIVOS DE ADESÃO E DE PERMANÊNCIA AO PROGRAM DA UNIVERSIDADE ABERTA À MATURIDADE DO CEFID / UDESC

2011 ◽  
Vol 16 (1) ◽  
Author(s):  
Sabrina Fernandes ◽  
Adriana Coutinho de Azevedo Guimarães ◽  
Joseani Paulini Neves Simas ◽  
Zenite Machado ◽  
Amanda Soares
Keyword(s):  
High School ◽  
Minimum Wage ◽  
Life Experience ◽  
Descriptive Statistics ◽  
Teaching Staff ◽  
Evaluation Instrument ◽  
Monthly Income ◽  
Descriptive Case Study ◽  
New Knowledge

O estudo descritivo de caso objetivou identificar os motivos de adesão e de permanência, bem como especificamente investigar as características pessoais dos alunos ao programa da Universidade Aberta à Maturidade do CEFID/UDESC. A amostra intencional por acessibilidade foi de 67 alunos de ambos os sexos da UAM, 49 + 4,24 anos. O instrumento foi um questionário auto-aplicável com 24 questões. Utilizou-se estatística descritiva. Os resultados identificaram as características dos alunos sendo, de meia idade, casados, com o 2º grau ou nível superior completo, aposentados e com uma renda média mensal superior a 9 salários mínimos. O conhecimento do programa se deu através de amigos e os principais motivos de adesão foram a busca por novos conhecimentos, novas amizades e troca de experiências de vida e os principais motivos de permanência, a satisfação com as disciplinas, corpo docente e as instalações do programa. Muitas mudanças ocorreram depois do ingresso ao programa. Conclui-se, que o programa vem atendendo as expectativas dos alunos solidificando-se e tendo cada vez mais adeptos. REASONS OF ADHERENCE AND PERMANENCE IN THE PROGRAM OF OPENED UNIVERSITY TO MATURITY OF CEFID / UDESC abstract The descriptive case study aimed to identify the reasons of adherence and permanence in the program of the Maturity Opened University (MOU) at CEFID/UDESC. The intentional sample was composed by 67 students of both genders from the MOU, 49 + 4,24 years. A self-applicable questionnaire composed of 24 questions was used as evaluation instrument in which descriptive statistics were used. The results identified the students’ characteristics as middle aged, married, with a high school or university diploma, retired, and with a monthly income of over 9 times the minimum wage. The knowledge of the program happened through friends, and the main reasons for adhering to the group were the search for new knowledge, new friendship, and life experience exchange; and the reasons for permanence in the group were satisfaction with the disciplines, the teaching staff, and the facilities. Many changes occurred after entering the program. Therefore, it is concluded that the program has fulfilled the expectancy of the students and has become more solid with more and more participants.

scholarly journals Management of Expired Liquid Chemicals in Gunung Batu’s Chemistry Laboratory of Health Polytechnic of the Ministry of Health Bandung in 2018

2020 ◽  
Vol 12 (4) ◽  
pp. 270
Author(s):  
Anantamia Arbiana ◽  
Rochana Tsaralatifah ◽  
Novita Nuraeni
Keyword(s):  
Volume Measurement ◽  
Chemistry Laboratory ◽  
Ministry Of Health ◽  
Reduction Stage ◽  
Descriptive Case Study ◽  
Measurement Results ◽  
Study Population ◽  
Observational Design ◽  
Liquid Chemical

Introduction: Hazardous waste materials can be generated from laboratory use sourced from expired chemicals. The purpose of this study examines how the management of expired chemicals in Gunung Batu’s chemistry laboratory of Health Polytechnic of the Ministry of Health Bandung. Method: This study used descriptive case study observational design. The study population was all chemistry laboratory managers and all expired liquid chemicals of Health Polytechnic of the Ministry of Health Bandung in 2018 with a total sampling method. The variables studied were volume, the amount based on its characteristics, reduction stage, packaging stage, storage stage, collection stage, utilization stage, processing stage, and accumulation of liquid chemicals. The laboratories studied were the environmental health, nutrition, and health analyst laboratory. The result of interviews and observations collected data collection, and then it was used to analyze. Result and Discussion: The results of the expired liquid chemical volume measurement at Gunung Batu’s chemistry laboratory Health Polytechnic of the Ministry of Health Bandung in 2018, were 108,138 milliliters. The expired liquid chemical measurement results based on their characteristics obtained results as many as 4.2% explosive, 50% flammable, 33.3% corrosive, and 12.5% toxic. According to observations and interviews, the chemistry laboratory has not implemented seven stages of chemical management correctly. Conclusion: The management of expired liquid chemicals in Gunung Batu’s chemistry laboratory at Health Polytechnic of the Ministry of Health Bandung in 2018, does not fulfill the requirements.

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