DNA-functionalized gold nanoparticles (DNA-AuNPs) have become a popular science theme since their invention in 1990s. They impact our daily lives by playing key roles in rapidly identifying and quantifying important analytes, and are a well-suited chemistry course content for beginners of chemical research. While the salt-aging method represents…

The helium-plasma (HePI) ionization mass spectrometry method was used to track the formation of reaction products and consumption of reactants by continually monitoring the vapors in the reaction headspace in real time. Two examples of the application procedure are presented here: a nucleophilic acyl substitution reaction and a 1,4-nucleophilic…

The discovery of ferrocene, Fe(C[subscript 5]H[subscript 5])[subscript 2], in the 1950s sparked the development of organometallic chemistry including metallocene compounds. Shortly after the isolation of ferrocene, the analogous ruthenium and osmium compounds were discovered. The preparation of ferrocene is common in undergraduate inorganic…

New approaches to microbiology education are needed to ensure equitable representation in microbiology and to build literacy in microbiology and science broadly. To address this goal, we developed a course held at the collegiate level that uniquely integrated microbiology, Indigenous studies, science and technology studies, and arts and…

Quantitative analysis in analytical chemistry is divided into semi-,relative, and absolute analysis. An example of each analysis is pH test paper, internal standard, and standard addition, respectively. However, their definition and differences have not yet been explained to students sufficiently in classes as well as textbooks. Polymerase chain…

The Next Generation Science Standards and increasing linguistic diversity of students in United States science classrooms require language-focused science instruction for which many secondary science teachers are not prepared. To date, minimal research has addressed how to best support secondary science pre-service teachers (PSTs) in teaching in…

With limited time for science, using science trade books for science and language instruction has become more common in elementary schools. Studies show that trade books often neglect scientific practices. Yet previous analyses have not differentiated by targeted grade level nor by book type. Do some grade levels and types of books highlight…

Explicit-reflective nature of science (NOS) instruction has demonstrated a positive impact on student learning. Although explicit-reflective NOS instruction often consists of questions that draw students' attention to NOS ideas, there are few recommendations in the science education literature about how the form of these questions might inform NOS…

There are some crucial critiques on "scientific inquiry" and "the" Scientific Method in current science education. Recent research literature is replete with arguments against inquiry's legitimacy to be included in science classes, and it has even been abandoned from the Next "Generation Science Standards." Critics of…

Undergraduate laboratory courses can provide opportunities for students to participate in science practices. This requires rethinking both curricula and instruction. Science practice--based courses require students to be positioned as epistemic agents, implying a shift in instructor role. Teaching assistants (TAs) are the primary instructors for…

Science education policies and standards have called for educators to teach students about the Nature of Science (NOS) and engage them in Culturally Relevant Science Teaching (CRST), which requires critical shifts away from traditional science teaching. As such, teachers are being asked to possess or take up conceptions of science that challenge…

Our past experiences in science teacher education inferred that using scientific practices in science teaching courses and supporting pre-service teachers' efforts to integrate these into their teaching allow them to gain confidence in analysing and interpreting empirical data. However, those efforts sometimes do not provide sufficient help for…

Natural science itself is an experimental science, so practice and experimentation are important and are typical teaching methods of this subject. To make practice and experiment play the highest strengths in teaching and developing the ability to learn about nature - one of the three specific competencies of natural science, the association of…

Project-based learning is widely used in organic laboratories. This goal-oriented and inquiry-based learning model complements student-centered training. Such models focus on complicated issues or real-world problems on the frontier of chemistry. Students progress through three project phases: preproject, during the project, and postproject.…

This article utilizes a framework for classifying different scientific methods suggested by a philosopher of science (Brandon "Synthese," 99, 59-73, 1994) called Brandon's Matrix. It presents findings from teachers who took part in a funded project in England that looked at the nature of scientific methods in science investigations.…