This quantitative study was conducted in one high-performing, suburban school district and examined the beliefs of 94 secondary science teachers as they relate to inquiry-based instruction and their use of the approach. The study rests on Fives and Buehl's integrative teacher belief framework (2012) which was developed from an exhaustive review of…

This qualitative grounded theory study applies Discourse Analysis (DA) to focus on the student-to-student (SS) "productive conversation" occurring within groups engaged in several activities in a physical science laboratory with a goal to identify aspects and patterns of such conversation. In this study, Student-to-Student Productive…

The investigation of Science, Technology, Engineering, and Mathematics (STEM) and the quality of education within and between the four disciplines continues to be a topic of concern throughout the United States. Employers, policymakers and educators have recognized a need for a stronger focus on the quality of STEM education in schools (Becker…

Evolution is often seen as a site of contestation within the school curriculum. The topic of evolution is therefore often considered to be 'controversial'. I first examine what is meant by 'controversial' and conclude that while, in an everyday sense, the topic of evolution can indeed be considered to be controversial, this term can mislead. A…

Purpose: The purpose of this paper is to report findings from a systematic literature review that explore how recent research on instructional leadership has addressed the role of mathematics and science instruction. Design/methodology/approach: Using Hallinger's (2014) approach to conducting systematic reviews, the review included 109…

Rhizobacteria that colonize plant roots and promote plant growth are referred to as plant growth-promoting rhizobacteria, and this can stimulate plant growth either indirectly or directly. Volatile organic compounds (VOCs) emitted by rhizobacteria have the capacity to promote plant growth as well as perform biocontrol of fungal pathogens. The…

Often overlooked in many molecular cell biology laboratory and cell culture courses, suspension cells represent an important aspect of molecular cell biology and cell culture. Most primary cell cultures and cell lines are adherent cells which grow in monolayers on surfaces. However, other cells such as hematopoietic cells, certain tumor cells, and…

This study is conducted to develop the diagnostic test, which can be used to measure the higher-order thinking skill (HOTs) of students of first-grade senior high school in Bima district, West Nusa Tenggara. The step of developing instruments such as test which using modification model of Oreondo which include two activities such as test designing…

The present study explores students' understanding of calculus-based kinematics (henceforth, CBK), in which argumentation is taken as the sequence of the modes of fostering reasoning and problem-solving. The investigation stresses the importance of arguments students bring to the learning situation of CBK and recognizes the active construction of…

Optical fibre communication enables the global internet, but few youths ever learn about how it works, even at a basic level, until tertiary education. While some middle school curricula might include simple geometrical optics concepts like reflection and refraction, they often lack contextual linkage to worldwide telecommunications. Through our…

The air drag constant for different nose shapes of projectiles is determined with the help of a simple method combining a projectile launcher, video tracking technique and spreadsheet computer code for simulating the motion. A projectile launcher with low-cost components is developed to study air drag in projectile motion. The launcher is based on…

The change in enthalpy of a chemical reaction conducted at constant pressure is equal to the heat of the reaction plus the nonexpansion work of the reaction, ?H = qP + w[subscript additional]. After deriving that relationship, most general and physical chemistry textbooks set w[subscript additional] = 0 to arrive at the claim that ?H = qP, and…

The redesign of an advanced analytical and physical chemistry practical module for senior undergraduates is described in this report. The underpinning rationale for the changes is to use cooperative learning groups placed in situations beyond their previous experience to increase the student experience of Kolb's Learning Cycle to a level greater…

The Enthalpy and Entropy in Dissolution and Precipitation Inventory (E2DPI) has been developed to measure student understanding of the dissolution of ionic solutes, aqueous precipitation reactions, and the enthalpy and entropy changes that accompany these processes. The E[subscript 2]DPI was designed using a mixed-methods protocol, such that the…

Protein structure, function, and signaling are a large portion of biochemistry. Because of this, proteins are often used as model systems in biochemistry laboratory courses, where a course-long project might comprise protein expression, purification, and characterization. Two common protein expression methods are isopropyl…