Teaching green chemistry within the K-12 classroom has a positive impact on attitudes and perceptions of chemistry in society for future scientists and professionals, resulting in safer, less hazardous chemistry experiments and demonstrations. The state of New York has taken advantage of the benefits that green chemistry provide in the classroom…

There is a scarcity of studies that focus on how South African high school physical sciences teachers are grappling with chemical laboratory safety (CLS). This is despite the fact that the Curriculum and Assessment Policy Statements in the South African school system increased emphasis on laboratory activities in the physical sciences. Department…

We describe an iodometric titration method for the determination of ascorbic acid using a microfluidic paper-based analytical device([mu]PAD). The ascorbic acid was detected by measuring the length of the blue band formed in a straight paper channel delimited by wax. This analytical method was designed as a laboratory experiment for under…

Designing high school chemistry assessments is a complex and difficult task. Although prior studies about assessment have offered teachers guidelines and standards as support to generate quality assessment items, little is known about how teachers engage these supports or enact their own beliefs into practice while developing assessments.…

This paper investigated constraints associated with biology teaching and learning materials in selected schools in the Central Region of Ghana. The purpose of this study was to evaluate the classroom implementation of biology curriculum. A cross-sectional descriptive survey design was used for the study. The target population comprised 187 biology…

This study presents 3 case studies that examine the processes involved in the professional growth of physics teacher-leaders (TLs) in a national network of professional learning communities (PLCs). This program has been operating since 2012, using a "Fan Model" where the TLs participate in a PLC (TL-PLC) led by a team from the Weizmann…

This paper aims to introduce the initiative "Escola Sirius para Professores do Ensino Médio" (ESPEM, Sirius School for High School Teachers) hosted by the "Centro Nacional de Pesquisa em Energia e Materiais" (CNPEM, Brazilian Center for Research in Energy and Materials) and supported by the Sociedade Brasileira de Física (SBF,…

DNA extraction from strawberries is a well-known procedure that allows students to visualize DNA and to recognize that living things contain DNA (NHGRI 2018, Science Buddies 2013). In this article, the authors describe a modification to the traditional DNA extraction protocol that promotes student agency in experimental design and also emphasizes…

This study was carried out to determine teacher views on the use of technology to improve physics education in high schools. The sample of the study is 238 volunteer physics teachers. The study was carried out with the survey model and a five point Likert Scale was used in the study. The scale has a reliability coefficient of 0.92. Descriptive and…

This paper highlights learning supports associated with genetics lessons that were implemented in a urban high school biology classroom. The supports provided access to science content for ELLs [English language learners], students with IEPs [individualized education programs], and struggling readers during an introductory unit on genetics. Due to…

Increasing emphasis on students' understanding of the practices of science and engineering necessitates that teachers themselves possess a strong understanding of these practices. Unfortunately, a teacher's potentially limited engagement in science and engineering practices throughout his or her own education may impede his or her understanding of…

This study aims to identify the obstacles of learning chemistry for ninth grade students in Syrian Arab Republic-Idlib Suburb Refugee camps and suggest solutions to overcome these obstacles. The study followed an analytical descriptive approach using two questionnaires of (58) items of questions for teachers and (18) for students. The population…

This study investigated teachers' characteristics and availability of laboratory as predictors of physics students' performance in Ilorin. 40 teachers and 400 students formed the sample size. The instruments used were PTQ and PSPT. The PSPT was a set of 15 theory questions on the topics taught by the teachers to the students. The scores were used…

Manu Prakash, the developer of the foldscope microscope reported on in this paper, stated that it is important to use tools that can support open-ended inquiry in the classroom, without dumbing down those tools. Scientific equipment in the school laboratory is often very expensive and only available to those who can afford it. "Frugal…

In this research, After I have realized some technological applications in the course of general physics laboratory II of the science teacher program, this research aims to examine the effects of the students' attitudes towards technology and the information of the communication technology (ICT) with the mixed method. For this application, after…