A wide array of conceptual change strategies attempted to address students' persistent alternative conceptions, yet there remained ubiquitous struggles of teachers teaching abstract and highly contentious science concepts. This study investigated the effectiveness of the novel Conceptual Change Framework of Instruction (CCFI) in teaching eclipses…

Children are very curious about the world around them. You may find them peering at tadpoles in a pond, counting ants on a log, or wondering about the stars, the sun, and the moon. I have been asked many times: Is the moon really made of cheese? Do astronauts live on the moon? Why does the moon look different every time I look up? Introducing…

Aim of this study was to examine the end-of-unit evaluation questions in the 6th Grade Science book of primary education according to the knowledge and cognitive process dimensions of the Revised Bloom Taxonomy. For that purpose, 130 end-of-unit evaluation questions of 6th grade Science textbooks which were approved by the Board of Education and…

The COVID-19 pandemic imposed profound changes on the way we think about undergraduate physics education. Online courses became mainstream. Exam formats were reimagined. Digital whiteboards replaced face-to-face discussions. Laboratory classes were outfitted with home-delivered supply kits. And all of us developed a more intimate knowledge of…

This paper reports a mapping of the astronomy content knowledge held by a sample of 171 Chilean in-service teachers, both from primary and secondary education, using a multiple-choice test. The responses were analysed by total achievement, and the proportion of alternative conceptions for each item was identified. Moreover, the test items were…

Literature indicates that virtual reality (VR) effectively supports and enhances spatial thinking in astronomy education. This study examines how pre-service elementary teachers' technological pedagogical content knowledge (TPCK) characteristics manifest during astronomy VR material's development and utilization. Nine sophomores, organized into…

From ancient times, the different features of planets and moons have created a huge interest. Aristarchus was one of the first to study the relative relations among Earth, Moon, and Sun. This interest has remained until today, and therefore it is always relevant to make this knowledge more appealing to the younger generations. Nowadays, smartphone…

In recent years, general relativity (GR) and gravitational-wave astronomy have emerged both as active fields of research and as popular topics in physics classrooms. Teachers can choose from an increasing number of modern instructional models to introduce students to relativistic ideas. However, the true potential of an instructional model can…

Two well-regarded measurements for the expansion rate of the universe disagree, leaving cosmologists very puzzled. It may be that something large has been overlooked in our theory of the Big Bang. This discrepancy is called the Hubble tension and it has led to a very interesting conversation within the cosmology community.

Research Findings: Grounded on personification storytelling, this intervention study introduced a science program including extensive astronomy concepts to 24 children (4-5 years). The storytelling attributes personal characteristics to cosmic bodies with metaphors relating to children's lives in explaining the scientific concepts, for example,…

A practical experiment is described to estimate the distance to a star using simple equipment, suitable for secondary or undergraduate students. The brightness of the star is visually matched to a miniature filament lamp, and its distance inferred from the inverse square law. Students gain an appreciation of astronomical units and practice in…

Collaboration is often emphasized as one of the key twenty-first century competencies to promote scientific literacies through many representational modes. However, collaborative interactions have been often characterized as a coordinated, synchronous, and symmetrical activity in terms of the same level of knowledge with little attention paid…

The Earth's shape concept develops as consecutive cognitive problems (e.g., the location of people and trees on the spherical Earth) are gradually resolved. Establishing the order of problem solving may be important for the organisation of teaching situations. This study attempted to determine the sequence of problems to be resolved based on tasks…

An immense body of literature on astronomy studies has provided evidence that individuals perceive the lunar phases concept as difficult. Furthermore, many studies have shown erroneous explanations or alternative conceptions of lunar phases. However, there is also a need to understand how individuals construct an explanation of the Moon's phases.…

While new physics bachelor's degree holders have a breadth of possibilities open to them, the initial post-degree outcomes for physics bachelors generally fall into two main categories: entering the workforce or continuing their education at the graduate or professional level. About two-thirds of those continuing with their studies are enrolled in…