We developed teaching materials in order to clarify experimental results and shorten the time needed for experiments on the oxidation of copper and experiments on the reduction of copper oxide in lower secondary school science class. In this study, when a micro tube was used as the reaction vessel, it was easy for students to observe the state of a reaction. Also, when a mini alcohol burner that we had made was used as a heating appliance, the experimental manipulation was simplified and the time needed was shortened. It became possible for the students to observe a clear metallic luster of copper during the experiment on the reduction of copper oxide through the plastic. In order to verify the effectiveness of teaching materials, we implemented a science class for lower secondary school using the developed teaching materials. In the student’s experimental results, it was found that most of students could clarify the experimental results. Also, every student could play a role, simplify the experimental manipulation, and reduce erroneous operations by leveraging the individual experiment into pair work characteristic of microscale experiments.