Proposal for the Use of Volcanic Eruption Model Teaching Materials to Understand Volcanic Activity Diachronically: Focusing on the Behavior of Volatile Components in Magma

Abstract

In this study, we improved volcanic eruption model teaching materials to help learners dynamically understand volcanic activity based on a diachronic view. This material uses calcined gypsum, which enables users to adjust the viscosity of the magma model material adding differing amounts of water to visualize the behavior of volatile components in magma of different viscosities. We also propose a new teaching method using this model, based on a diachronic view, in the study of volcanoes in junior high school science classes. This model is available for learning activities at the inter-stage linkage level of diachronic thinking, which relates the behavior of volatile components to the causes of volcanic eruptions, types of eruption, and the shapes of volcanoes.