Science and Mathematics Education Commons^™

Safe Use Of Hydrogen Peroxide In The Organic Lab, Patrick Dussault

Organic Peroxides: Safety Issues

The article describes good practices for use of hydrogen peroxide (H₂O₂) in an organic lab setting. Major headings include:

Leading references; Toxicity; Physical properties; Chemical properties; Stability and incompatibilities; Confinement/pressure; and, References to accidents involving H₂O₂.

Online Laboratory Introductions To Promote Student Interactions With Two Science And Engineering Practices Of The Next Generation Science Standards, Catherine K. Howlett

Boise State University Theses and Dissertations

Online science courses are becoming increasingly available to K-12 students in the United States. With the utilization of these courses, it is important to facilitate student completion of laboratories as well as student interest in and use of the science and engineering practices (SEPs) of the Next Generation Science Standards (NGSS). This exploratory research provided online laboratory introductions to help students interact with the content and the instructor. The research studied if the laboratory introductions led students to ask questions about laboratories, complete laboratories, and think about and use two NGSS SEPs, specifically analyzing and interpreting data and constructing explanations …

Learning Chemistry In English: Challenges Faced By Non-Native English Speakers, Arwa A. Alshehri

Graduate Theses/Dissertations

Every year many international students come to study in the United States. In addition to all the challenges associated with coming to a new country, non-native English speakers (NNES) face the additional challenge of having to learn their content in English. Therefore, in this project, I recruited NNES participants from general chemistry courses since preliminary inquiries indicated that they have the largest enrollments. Because there were relatively few students at MSU who are non-native English speakers studying chemistry, I used a case study design to be able to extract generalizations from an in-depth study of a few individuals. The aim …

Science Identity And Underrepresented Minority Stem Organizations, Schetema Nealy

UNLV Theses, Dissertations, Professional Papers, and Capstones

President Obama indicated that there are twice as many science and technology jobs available in the U.S. as there are workers for those jobs (Office of the Secretary, 2013). To fulfill the need for more scientists and engineers, there must be increased educational support for the nation’s underrepresented minority (URM) science, technology, engineering, and mathematics (STEM) students. URM STEM organizations, such as the National Society of Black Engineers and other URM student-oriented organizations that provide academic and career resources, are widely used on college and university campuses across the nation to support these students both academically and professionally. Future developments …

Secondary Biology Instruction In The General Senior Secondary Schools Of Aceh Province Indonesia: An Analysis Of Teachers’ Opinions And Teaching Practices Related To The Indonesia Biology Curriculum 2013, Wiwit Artika

Graduate Theses and Dissertations

My study was to discover the perceptions of general secondary senior high school biology teachers about the application of curriculum 2013. Their further opinions of biology topics and the instructional practices in the class have supported the findings of this study. In addressing this study, general senior secondary school (GSSS) biology teachers (n=286) from 22 districts in Aceh province randomly participated in my study. Thus, six (n=6) teachers were selected as convenience sampling to have a one-on-one phone interview. The data collected were analyzed descriptively (frequency and percentage) and thematically to answer the research questions.

The documents comparison between the …

Pre-Service Teachers’ Engagement In A Discourse About Integers From A Sfardian Perspective, Douglas M. Platt

Theses, Dissertations and Culminating Projects

This study describes the way 14 pre-service teachers engaged in discourse about integers. The discourse being examined is framed by Sfard’s view of a discourse as being composed of the four elements word use, visual mediators, routines, and narratives (Sfard, 2008). These elements combine to form a means for people to exchange and preserve ideas and coordinate actions within a society. Each of the participants in this study engaged in a seven question, semi-structured interview (Merriam, 2009), which included prompts for the enactment of computations modeled with colored chips and the number line, in addition to written and spoken representations. …

The Effect Of An Historical Geology Course On Students’ Attitudes Towards Science And Their Knowledge Of Deep Time As A Threshold To Their Knowledge Of Evolution, Allan Nolan

Dissertations

In America there exists a conflict between a small group of its citizens and the concept of evolution. Researchers have studied this conflict and the ways in which teachers might approach educational methodologies that not only address evolution in a sensitive manner, but also remain legally acceptable.

This research was designed to address teaching evolution in the context of deep time – the concept that time is vast and that geology and biology operate in a timescale of hundreds of millions to billions of years. In previous peer-reviewed works, it has been stated that deep time acts as a threshold …

Tangible Teaching: The Effect Of Physical Modeling On Community College Students’ Understanding Of Conservation Of Matter, Erick T. Moffett

Dissertations

Students’ weak understanding of conservation of matter is well documented; however, there is a paucity of research that provides science educators with actual examples of empirically proven curricula employing physical modeling that can be used in the chemistry classroom to teach this fundamental concept. An intervention (three sequential physical modeling activities) was developed and evaluated. The intervention was administered to two sections of a General Chemistry I course at a community college in the southeastern United States, and pre-test/post-test data using a published instrument were collected to evaluate the physical model’s effectiveness in developing students’ understanding of conservation of matter …

School Climate: A Comparison Of Teachers, Students, And Parents, James A. Jacobs

Electronic Theses and Dissertations

This study was designed to examine the benefits of positive school climate and to measure the perceptions of school climate for intermediate grades in a Northeast Tennessee School district. An online school climate survey was used to collect responses from participants in intermediate grades and focused on the 3 major components of school climate: school engagement, school environment, and school safety. Data were collected for 2 consecutive years in 2016-2017 and 2017-2018. Response totals included 1,955 student responses, 116 teacher responses, and 210 parent responses that were analyzed and used for this study. Of the student totals, some students that …

Working With Organic Peroxides In The Academic Lab, Patrick Dussault

Organic Peroxides: Safety Issues

ABSTRACT: The following is a brief introduction to peroxide safety from the viewpoint of a synthetic chemist. Major topics include: classes of organic peroxides; peroxide reactivity; hazard identification and minimization; reaction monitoring; and, hazards associated with auto-oxidation of peroxidizable solvents.

KEYWORDS: peroxide, hydroperoxide, hydroperoxyacetal, ozonide, perester, dihydroperoxide, monoperoxyacetal, active oxygen, peroxide strips, TLC indicator, self-accelerating decomposition, radical, exothermicity, transition metals.

CONTENTS: 1. Literature resources 2. Major classes of peroxides 3. Basis for peroxide reactivity 4. Determining reactivity and minimizing hazards a. Steps to take before an experiment b. Minimizing hazard during reactions c. Monitoring reactions d. Working with isolated peroxides …

Flipping The Flipped: The Co-Creational Classroom, Vuk Uskoković

Pharmacy Faculty Articles and Research

The flip teaching model is being increasingly adopted by higher education institutions as an active learning alternative to traditional lecturing. However, the flip model shares a number of critical premises with the classical didactics. The further flips of the flip are thus advocated and the fear of returning the method to its initial state, prior to the flip, via such flips of the flipped dispelled. Proposed here is a seminal variation to the flip model based on the active involvement of students in searching, finding, selecting, and assembling knowledge from various literature sources into the learning material for the entire …

Calculus Ii Performance For Students In Clear Calculus: A Causal Comparative Study, Ty Mckinney

Honors Theses

No abstract provided.

Pembelajaran Kontekstual Filosofi Ekonomi Cukup, Rizki Listyono Putro, Hari Wahyono, Mit Witjaksono

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study is aimed to create a learning scenario that intends to introduce the concept dan principal of Sufficiency Economy Philosophy (SEP) based on Pancasila and article 33 of the constitution of Republic of Indonesia (The UUD 1945) and to construct the value of SEP, Pancasila, and article 33 UUD 1945 into the learning process. This study use qualitative approach and use Design Based Research (DBR) as the design of development. The result of this study are (1) create a learning scenario that gives real experiences to students and (2) change of mindset, knowledge and attitude of the high school …

Pengaruh Model Pembelajaran Berbasis Proyek Terhadap Kemampuan Pemecahan Masalah Pokok Bahasan Fluida Dinamis, Adiyat Makrufi, Arif Hidayat, Muhardjito Muhardjito

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The research is a quasi experiment that aims to determine the problem solving ability of students who learn with Project-Based Learning (PjBL) and conventional. PjBL can increase problem solving abilities of students. Data analysis was obtained from students' pretest and post test results using SPSS. Based on the analysis of one path anova obtained F-count 168.86 with P-value (0.000 <0.05) which means there is a very significant difference of problem-solving ability between experiment class and control class. The average score of experimental class problem-solving abilities is higher than the control class. Students are still having difficulties at the Specific Application of Physics and Logical Progression.

Kemampuan Komunikasi Matematis Tulis Siswa Smp Dalam Menyelesaikan Masalah, Rianti Mandasari, Tjang Daniel Chandra, Dwiyana Dwiyana

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of this study is to describe students writing mathematical communication of high-ability (ST), medium (SS), low (SR) in solving problem. The research data was obtained by analyzing the answer sheets of three subjects based on writing mathematical communication indicators. The result of this research are, (1) ST can write what is known and asked, construct Venn diagram and do the calculation correctly, (2) SS can write what is known and asked, construct Venn diagram and do the calculation of problem 2 correctly, but on problem 3 SS still make any mistake on constructing Venn diagram and doing the …

Pengembangan Instrumen Penilaian Sikap Dan Keterampilan Psikomotorik Pada Materi Asam Basa, Titrasi Asam Basa, Hidrolisis Garam, Dan Larutan Penyangga, Afidatun Nadhiroh, Darsono Sigit

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This research and developmentaims to produce and reveal the eligibility attitudes and psychomotoric skills assessment instruments on acid base, acid base titration, hydrolysis of salt, and buffer solution. The steps of research and development which is used (1) study of literature; (2) field survey; (3) drafting instruments; (4) limited field-testing; (5) revision of the field test result; (6) further field-testing; (7) revision offinal product; (8) dissemination and implementation. The result of content validation showed that the attitudes and psychomotoric skills assessment instruments “very decent” with average percentage of 97,3% and 91,5%. The limited field testing results showed that the attitudes …

Perbedaan Hasil Belajar Kognitif Antara Siswa Yang Dibelajarkan Dengan Model Pembelajaran Learning Cycle 5e Dan Learning Cycle 5e-Mind Mapping Pada Materi Larutan Penyangga, Rakhmah Marisna, Darsono Sigit

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to determine the implementation of learning process and student cognitive learning outcomes on buffer material materials using Learning Cycle model 5E-mind mapping and Learning Cycle 5E learning model. This research uses experimental quasi design with posttest only control group design model. The population of this study is all students of grade XI IPA SMAN 5 Malang. The sample of research is class XI G4 as experimental class which was taught by Learning Cycle 5E-mind mapping and class XI F4 as control class which was taught by Learning Cycle 5E. Instruments used in the study include learning instruments …

Komunikasi Matematis Siswa Bergaya Belajar Teoritis Dalam Menyelesaikan Soal Kesebangunan, Indah Rachmawati, Santi Irawati, I Nengah Parta

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of this research is to describe the mathematical communication of theoritist student in SMP Negeri 5 Malang in solving similarity problem. Subject of this research is one theoritist students. The indicators of mathematical communication that used in this research are adapted from the NCTM indicator then combined to the four Polya's steps. The results of this research show that the subject’s mathematical communication structure tends to be complete. Furthermore, the diagram created by the subject is proportional and completed by the length, unit, and label. Then, the words used by the subject in writing the reason of similarity …

Prospek Pengembangan Lingkungan Belajar Digital Untuk Generasi Z Di Era Industri Iv, Dio Lingga Purwodani, Sulton Sulton, Henry Praherdhiono

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The fourth industrial revolution and the presence of Z generation became the background of learning change of State University of Malang to evolve into the digital learning environment. Where the role of technology and ease in accessing all the needs is a thing preferred students the present. All students have gadgets and laptops and some of the time they have used to connect to the internet. Priority in digital revolution is done on the administrative and academic side, because both of them give each other influence. As an initial revolution at least produce 70% percent digital percentage and 30% non-digital. …

Proses Berpikir Kreatif Siswa Berkemampuan Spasial Tinggi Dalam Menyelesaikan Soal Open-Ended Berdasarkan Tahapan Wallas, Mirza Amelia Oktaviani, Sisworo Sisworo, Erry Hidayanto

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to describe the process of creative thinking of high-spatial ability students in solving open ended problems based on the stages of Wallas. The results of this study include (1) preparation stage, subject reading questions and looking for information of problems, (2) incubation stage, subject had time to pause and then draw cubes, (3) illumination stage, subject designs the solution for both ofproblems using Pythagorean theorem and circumference of region of cube, and (4) verification stage, student apply the idea and found that subject produce one solution for first problem and produce two solution for second solution.

Kontribusi Minat Berwirausaha Dan Self Efficacy Terhadap Kesiapan Berwirausaha Di Era Revolusi Industri 4.0 Mahasiswa Teknik Informatika Se-Malang, Rahmat Irsyada, Ahmad Dardiri, R. Machmud Sugandi

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to examine the contribution of interest in entrepreneurship and self efficacy to ntrepreneurial readiness in the era of industrial revolution 4.0 students of informatics engineering in Malang. Along with the changing time, the existing technology has been growing rapidly to date. New technologies such as the Internet become a strategic point in the process of industrial revolution, especially in entrepreneurship today or often referred to as electronic business revolution or Electronic-Business. This research uses descriptive analysis and regression. The results showed that interest in entrepreneurship and self efficacy contribute to entrepreneurial readiness in the era of industrial …

Analisis Penguasaan Konsep Siswa Pada Materi Fluida Statis, Muhamad Bahar Sofiuddin, Sentot Kusairi, Sutopo Sutopo

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to describe mastery of high school students concept on static fluid material. The method used is descriptive analysis. Data were taken from 69 students of MAN 1 Tulungagung 12th grade. The instrument consists of nine items of multiple choice test with reason. The result of the analysis shows that the students' mastery of concept on static fluid material is good with average value of 63.45. Students have some difficulty especially at the hydrostatic pressure of a system that has different room. Almost students are difficult when comparing the bouyant force an object under different conditions.

Bahan Ajar Prakarya Dan Kewirausahaan Berorientasi Potensi Lokal Kabupaten Trenggalek, Niken Karlina Saputri, Wahjoedi Wahjoedi, Agung Haryono

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Based on the results of preliminary observations and interviews conducted by researchers, obtained information that the local potential in Trenggalek District still belom maximized by teachers when carrying out learning activities in the classroom. Though the learning of entrepreneurship and entrepreneurship can be used as a means of learners to develop ideas or creative ideas. So the researchers chose to develop teaching materials and entrepreneurship oriented local potential Trenggalek District with the aim that can be used as one way to increase the love of learners to their environment. Based on the research that has been implemented, obtained data that …

Pembelajaran Berbasis Proyek Mata Pelajaran Prakarya Dan Kewirausahaan Dengan Rangkaian Lead (Listen, Explore, Analyze, And Do) Untuk Menumbuhkan Adversity Quotient Berbantuan Mobile Learning Schoology, Titis Pandangwati, Saida Ulfa, Anselmus J. E. Toenlioe

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The development of project-based learning design with the LEAD series (Listen, Explore, Analyze and Do) aided the schoology to answer the problems of the subjects of workshop and entrepreneurship which aimed to print the students as entrepreneur owner. The research method used to develop the learning design is Dick, Carey and Carey (2015). Based on the validation percentage of 91.25% material experts, 90% design learning experts, and 97.5% of media experts, field trials of 92.83% means that instructional design and instructional media are appropriate for learning. While the results of effectiveness test all test subjects as many as 30 including …

Bahan Ajar Ilmu Alamiah Dasar Pada Program Studi Ilmu Sosial, Riztika Widyasari, Sihkabuden Sihkabuden, Sulthoni Sulthoni

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Basic Natural Science Course is a compulsory course in every Social Studies Program, so it needs the development of appropriate teaching materials and can be used in the long term. The characteristics of students in social studies programs are mostly graduates from the Vocational High School which is basic about the knowledge of Natural Science is still minimal, this condition requires the professor must be creative and innovative in preparing the teaching materials so that the specified competency standards are achieved. The development model used is Dick & Carrey's development model. The result of this development model is a valid …

Pengaruh Pbl Dengan Scaffolding Prosedural Terhadap Kemampuan Berpikir Tingkat Tinggi Ditinjau Dari Kemampuan Tinggi Dan Rendah Siswa, Feny Puspitaningsih, Wartono Wartono, Supriyono Koes Handayanto

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

This study aims to find out the effect of PBL with procedural scaffolding toward high-order thinking skills in terms of students' high and low ability. This research used non equivalent control group design with 34 students of experimental class and 35 students of control class. The hypothesis test of this study used Two-Way ANOVA and showed that the effect of PBL with procedural scaffolding was 42.5%, while the effect of students' initial ability was 37.9%. The mean posttest grade of the experimental class is higher than the control class, indicating that PBL with procedural scaffolding affects students' high-order thinking skill.

Kemampuan Argumentasi Ilmiah Siswa Pada Hukum Newton Di Sekolah Menengah Atas, Adetya Rahman, Markus Diantoro, Lia Yuliati

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Physics learning need to train ability that scientists can apply in developing knowledge, that is scientific argumentation ability. Scientific argumentation ability is very important in preparing students who are literate in science. Unfortunately founded in field scientific argumentation ability students still low. Scientific argumentation ability students mean in first level (unsupported) and second level (phenomenological). Validity of conceptual scintific argumentation students mean in first level (invalid).Abstrak: Pembelajaran fisika perlu melatihkan kemampuan yang bisa diterapkan ilmuwan dalam mengembangkan pengetahuan salah satunya adalah kemampuan argumentasi ilmiah. Kemampuan argumentasi ilmiah sangat penting dalam mempersiapkan siswa yang berliterasi sains. Namun, ditemukan di lapangan bahwa …

Higenitas Sanitasi Pengolahan Air Minum Isi Ulang Rumahan Di Kabupaten Lampung Timur Dan Kota Metro, Anton Setia Budi, Endang Suarsini, Umie Lestari

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Refill drinking water is increasingly becoming the primary choice for the community to meet the drinking water needs. Affordable price refill drinking water is one way for society. Not all refill drinking water treatment (depot) guarantee the quality of products produced. Sanitary hygiene refill drinking water treatment is one factor the quality of drinking water produced include, the location, the equipment used, and handlers/ employees who operate the tool. The purpose of this study was to determine the quality of sanitary hygiene refill drinking water treatment. The primary document in this research is the observation outcome document. Document presented in …

Keterampilan Pemecahan Masalah Dengan Model Search, Solve, Create, And Share (Sscs) Problem Solving Disertai Conceptual Problem Solving (Cps) Pada Materi Hukum Newton, Shofi Hikmatuz Zahroh, Parno Parno, Nandang Mufti

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

Problem-solving skills are important for students to cope with rapid changes in society and supported by technological advances. Problem-solving skills that students have especially in Newton's Law materials need to be improved so that it becomes like an expert problem solver. Therefore, SSCS problem solving research with CPS is done to determine its effect on problem solving skills. This research uses one group pretest-posttest design. The results showed that the learning model has an influence on problem-solving skills with strong effectiveness, but the improvement of problem solving skills is still low.

Pengaruh Model Project Based Learning Dan Gaya Berpikir Terhadap Kemampuan Memecahkan Masalah Mahasiswa Geografi, Alif Reza Nurhadi, Sugeng Utaya, Budi Handoyo

Jurnal Pendidikan: Teori, Penelitian, dan Pengembangan

The purpose of this research is to determine the affect of project based learning model and thinking style on the problem solve abillity of geography students in the environmental geography course. This research method is quasi experimental with pretest-posttest 2x2 factorial design type. The subjects of this study were the geographic students of H-class as the experimental class and the G-class as the control class in the class of 2016. The analysis showed that there was an increase of students ability in solving the problem. The result of analysis shows that there is no influence of divergent and convergent thinking …