The classic silver mirror reaction at room temperature in textbooks usually used glucose to react with silver nitrate and ammonium nitrate with the presence of caustic alkalis. But the aldehydes such as acetaldehyde and propionaldehyde were difficult to react under the same condition. In this paper, Na[subscript 2]CO[subscript 3] was used to…

Background: Recent literature indicates that the trend towards investigating pre-service elementary teachers' conceptual understanding of science concepts they are expected to teach and their command of that content-specific conceptual understanding is gaining momentum in science education. Purpose: The purpose of this study was to investigate…

Research has revealed that a small percentage of weekly instructional time in the elementary grades is dedicated to teaching science. Additionally, elementary educators receive limited preparation to teach science concepts compared to math or literacy skills. Therefore, this study examined if utilizing poetry to teach science concepts had a…

The goal of this study was to examine the way preservice science teachers depict and develop their understanding of nature of science (NOS), from the perspective of the family resemblance approach (FRA). FRA defines NOS as a Cognitive-Epistemic and Social-Institutional system. Appling the dual-analytic approach via reflective drawing analysis, we…

The main purpose of this study was to describe the development and use of a flowchart for preservice chemistry teachers' problem solving on the First Law of Thermodynamics. Twenty-seven undergraduate preservice chemistry teachers attending a Physical Chemistry course participated in this study. The responses of the participants to the set of test…

The study assessed the science teaching confidence of preservice teachers in teaching elementary science by addressing two research questions: (1) Did preservice teachers understand the science concepts well enough to be effective in teaching elementary science content? (2) Did preservice teachers have the necessary science concepts and skills to…

Argumentation research often addresses the nature of argumentation as a complex set of procedures that can aid learning of complex scientific knowledge and practices. Thus, studies might look at transfer of knowledge and processes to specific science domains or to other types of procedural knowledge, such as teacher implementation in the…

We explored how preservice teachers in a middle school science methods course learned and applied computational thinking (CT) concepts and activities during a month-long intervention. In the intervention, preservice teachers learned about CT concepts through an hour-long lecture in their methods class, practiced a computing-integration activity…

There has been little attention given to teaching beliefs of graduate teaching assistants (GTAs), even though they represent the primary teaching workforce for undergraduate students in discussion and laboratory sections at many research universities. Secondary school education studies have shown that teaching beliefs are malleable and can be…

It is now required for teachers to incorporate computational thinking (CT) into their science classes. Our research modifies the existing structure of a science methods course for preservice teachers to include CT via modeling and simulations. In the first study, preservice teachers were introduced to the basics of coding through an Hour of Code…

This study aimed to examine the development of pre-service science teachers' views of the targeted nature of science (NOS) aspects, which are considered more difficult to develop than other aspects. This study was grounded by conceptual change and experiential learning theory. A multiple comparative case study approach was used to explore…

The academic language of science includes science content words and words that describe the practices of scientists. The present study examined science vocabulary knowledge and science vocabulary instruction practices of pre-service teachers enrolled in a primary science methods course. This exploratory mixed-methods study presents quantitative…

This study incorporated Nature of Science (NOS) within children's literature in a science methods course to aid preservice early childhood teachers in improving their NOS understandings and abilities to transfer NOS into formats accessible to early childhood students. Through a qualitative research design, researchers collected data including pre…

The purpose of current research is to explore the influence of a science teaching method course incorporating explicit reflective NOS instruction on pre-service science teachers' views of NOS and justifications in their arguments related to their decision-making on socio-scientific issues. This study is a case study and the participants were 5…

In an effort to better prepare science teachers to engage in high-leverage practices, this study investigates the choices and rationales of preservice science teachers in planning elicitation strategies and describes how their understandings about the elicitation of students' ideas changed over time. Four cohorts of preservice science teachers…