Purpose: This study investigates how the practice of dividing students and coursework into leveled categories persists in science education despite decades of efforts aimed at reducing inequities. This study makes underlying logics visible through an empirical analysis of how science educators attempt to reconcile an egalitarian vision of science…

The limitations of traditional education models and the advancement of technology have revealed the need to transform the learning experience. The "Flipped Learning" approach, born out of this need, is a model where students study learning materials in advance and participate in more interactive and hands-on activities in the classroom.…

Due to the COVID-19 pandemic, Biology Teaching Assistants (TAs) were tasked with transitioning and adapting their instruction to an online environment by quickly implementing Emergency Remote Teaching (ERT) practices. Effective online and in-person teaching requires student-centered approaches to support undergraduate student learning. Using…

This study summarizes the comparison of interactive lecturing and technology-supported student-centered pedagogy across six semesters of an introductory physical geology course. A multiple linear regression analysis of 967 student scores shows that absent raw exam scores, homework, and in-class attendance, performance on the first exam (score…

This study introduces a modernized approach to classical volumetric titrations for the undergraduate chemistry curriculum. Leveraging smartphones and digital top-loading balances, we performed mass-based titrations and determined end points using digital color measurements. Our aim was to make classical wet chemistry more accessible and engaging…

In the current paper, we develop an approach to early science pedagogy that is based on insights about how complex adaptive systems function. Complexity approaches have an important advantage over traditional information-processing approaches: They anticipate the proverbial 'mind with a mind of its own' without having to postulate exclusively…

Measurement instruments of physics, especially those dedicated as teaching aids in physics classroom are improving. These measuring instruments are not only used for measurement purposes, but also to apply theoretical concept into the real world, thus making it easier for students to comprehend. Therefore, this study aims to design, construct, and…

The Phantom Bouquet is a venerable lecture demonstration that does a fine job of showing how a concave spherical mirror can form a real, inverted image. In the original demonstration, a brightly illuminated artificial rose is hung by its stem in front of a concave spherical mirror. The distance from the reflecting surface to the rose is somewhat…

Thomas Young (1773-1829) is best known in the physics community for his double-slit experiment demonstrating the wave property of light and for his work on the tensile properties of solids (Young's modulus). His reputation as a physicist was built almost entirely upon a short, three-year period (1801-1803) of intense work as an instructor in…

The hydrogen spectrum is one of the most commonly demonstrated and most commonly studied. After the visible spectral lines (Balmer series) are explained by the Rydberg's formula, it becomes immediately apparent that there will also be similar infrared and ultraviolet series. As you may have taught your students, these are called the Paschen and…

When considering science education within the makerspace (engineering workshop) context, insufficient attention may be paid to the cultural models organising the learning activity in such spaces. Too often, learning is imagined to be orchestrated by instructors, and students are supposed to passively respond to activities and events planned on…

The location of the center of mass of a beam can be calculated using the values of the reaction forces at its ends. The success of an apparently erroneous solution leads the authors to seek and find an explanation for why this solution works. We illustrate the procedure with an asymmetric beam.

Active learning is considered among teaching approaches best suited for promoting critical thinking in science classrooms. Hence, the reformed South African school curriculum identified active learning as appropriate to achieve most of its objectives. This paper reports on an explorative study of a science teacher's active learning conceptions and…

Learning science encompasses learning the language of science, which can pose considerable challenges to students due to its specialized features and structures. Addressing the three-language problem (the need to transition between daily, general school and disciplinary languages) and the specific language demands of science thus constitutes part…

The Augmented Reality (AR)-based learning environment not only provides educators with novel ways to present learning materials but also give learners the opportunity to spontaneously interact with the material. Previous studies have shown that AR has many advantages in education; however, few focuses on the mechanisms behind promoting inquiry…