This paper has a didactic aim. Indeed, starting from the well-known principle of free fall discovered by Galileo Galilei, we want to make some reflections that we consider useful for secondary school students. Being the acceleration invariant with respect to Galilei's transformations, it is useful to underline that the free fall in a gravitational…

Data from the Kepler satellite were analysed using the Mikulski Archive for Space Telescopes database. With the participation of 53 students, we determined the parameters of the HAT-P-7b (Kepler-2) exoplanet system (transit duration, planet-to-star radius ratio, orbital period, semi-major axis and star mass). We used approaches that are easy to…

The planet Mercury transited the face of the Sun in a rare spectacle on 11 November 2019. It was an awe-inspiring moment for 300 students from Kwabenya Community High School and Ghana Atomic Energy Commission Basic School in Ghana to see this wonder of the cosmos. Celestron Power Seeker 60 mm diameter telescopes were used to project the Sun's…

In recent years, youth across the planet have begun to mobilise, motivated by the perceived injustices associated with the causes, consequences and politics of climate change. However, education systems lag behind, preoccupied with the "what" and "how" of climate change, rather than engaging it as a social issue in which…

Our planet is facing many environmental challenges, including climate change, loss of biodiversity and habitat, and pollution, while many of our populations are also experiencing marginalization due to poverty, race, gender, language, ability, and environmental injustices. Environmental hazards and policies often impact those in society who are…

In addition to the continuing need for citizens who can address the challenges of "human" communities, growing concerns have arisen regarding "all" life on the planet. Indeed, one of our most urgent conditions is the decline of the environment upon which all life depends. Yet, despite our concerns, there remain vastly differing…

As part of a multiyear research project investigating the affordances of online citizen science (OCS) projects for enhancing school students' learning in relation to science and digital technology, teacher-researchers have designed and implemented classroom interventions incorporating one or more OCS projects. The project is situated in New…

Young students have raised their voices in debates on what action for sustainable development (SD) is necessary. Nevertheless, research that gives voice to 10 to 13-year-olds while looking into SD issues in all their complexity of interrelated environmental, social, and socio-economic perspectives, is scarce. This study aims to give voice to these…

Ocean currents play an important role in regulating the Earth's climate by redistributing ocean heat around the planet. One important climate phenomenon that includes several large ocean currents is the Atlantic Meridional Overturning Circulation, which is the process of warm surface currents in the North Atlantic Ocean moving to the Arctic to…

Explaining phenomena associated with a system involves describing a system's structure and articulating the process through which the system's structure changes over time. This paper defines geo-sequential reasoning in the context of plate tectonics and uses it to analyse how students explain the geological processes that occur along convergent…

Planetariums have been used for a long time in astronomy education. Due to some disadvantages of permanent planetariums, it is seen that portable planetariums have become popular in recent years. Portable planetariums, due to their easy set up in anywhere, offer opportunities for those students studying in the regions where there are not…

Physical Education has been described as a subject with unique characteristics that can contribute to achieving Sustainable Development Goals. However, an analysis of PE teachers' (PETs) sustainability consciousness has not yet been conducted. For this purpose, a total of 203 PETs completed the validated SCQ-S instrument to measure the three…

We present and analyze video data of upper secondary school students' engagement with a computer-supported collaborative learning environment that enables them to explore astronomical phenomena (Keplerian motion). The students' activities have an immersive and exploratory character, as students engage in open-ended inquiry and interact physically…

"What if…?" is a four-day summative assessment for a unit on biodiversity and evolution within a general biology course for ninth and tenth graders. Students gather evidence through multiple investigations to answer the questions: (1) "How has life changed on the planet? (2) What has caused those changes? and (3) What is happening…

This issue of the Bank Street "Occasional Paper Series" brings together educators and researchers to (re)imagine what it means to teach and learn within the immediacy of the here and now, an orientation crucial to confronting contemporary threats to children's lives, democracy, and the planet. The papers seek to extend and broaden Bank…