Description
The quantum concepts behind modern quantum technologies are rarely introduced before senior high school. The quantum reality of the probabilistic nature of photons and all microscopic processes conflicts with the Newtonian concepts common in early education. As a result, most people remain unaware of the powerful understanding provided by quantum physics. Here we describe a classroom approach trialled with primary and middle school students, showing how the existence of photons, as described by Planck and Einstein, is sufficient to demonstrate the probabilistic nature of quantum reality, and how superposition becomes unavoidable when considering double-slit experiments with single photons.
We introduce quantum physics at an early age using hands-on models, role-play activities, and simple experiments to uncover the basic properties of photons, described as a combination of waviness and bulletiness. We show that the probabilistic behaviour of single photons becomes unavoidable when observing partial reflections and beam splitters. This allows quantum probability to be explored through double-slit experiments with single photons. Students recognise how superposition and non-locality are intrinsic to quantum thinking while also understanding how quantum processes are often hidden by the transition from probability to statistical certainty.
The activities were developed as part of a learning sequence created by the Einstein-First project, beginning in Year 3 and ending in Year 10.
Programs have been trialled with primary and secondary students in Australia. Classroom observations indicate that learners readily engage with these concepts when presented through concrete experiences and visual models. The approach enables students to discuss superposition, probability, and quantum measurement using age-appropriate language while maintaining conceptual consistency with modern physics. We argue this provides a strong foundation for university-level learning.
The work demonstrates that foundational quantum concepts can be successfully introduced in school settings and provides practical examples for teachers seeking to bring quantum science into contemporary classrooms.
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