Chile is home to most of the world's largest telescopes, and astronomy research is robust in the country. However, astronomy education in Chile is much less mature. As an effort to increase its quality and coverage, more astronomy K-12 teacher professional development (PD) has been offered in Chile in the last decade, but the results of these…

We present two studies to investigate the extent to which attending a planetarium presentation increases secondary school students' understanding of the apparent motion of the Sun and stars. In the first study, we used the Apparent Motion of Sun and Stars (AMoSS) test in a pretest/post-test/retention test setting to measure learning gains and…

The study investigates students' ability to analyze visual literacy and digital literacy through open-ended inquiry activities with astronomical observations and Heaven View application. The investigation consists of assignments for students to carry out six different variations of observational activities. Supervision is given in introductory…

This study aims to describe the 3D model's online modules effectiveness in the practicing mastery of conceptual knowledge in solar system learning using an instrument which tested 58 7th-grade respondents from one of the junior high schools in Jombang, East Java, Indonesia. The respondents were then divided without randomization into 29…

Solar eclipses are a rare phenomenon that everyone should have the opportunity to explore in depth. This article describes two programs developed by a science, technology, engineering, and mathematics (STEM) outreach center with the goal of bringing the excitement of eclipses to all learners. The STEM outreach center collaborated with local…