Applying small-scale experiments in teaching science to students has garnered a lot of interest from worldwide scientists. Compared to conventional experiments that are performed in regular laboratories, small-scale experiments have a variety of advantages including consuming a small number of chemicals and using small-size reusable apparatuses, thus saving money and contributing to protecting human health, safety, and the environment. In addition, applying small-scale experiments helps to develop students’ science competence, critical thinking, and learning interests in experimental subjects. However, using small-scale experiments in teaching science in Vietnam has not been widespread yet, with not many studies focusing on this topic. Therefore, this study demonstrates basic ideas and strategies to design and apply small-scale experiments in teaching. Following the content and requirements of the General Education Program in 2018, a system of small-scale experiments used in the “Substances and their changes” topic in Science subjects is designed. A website demonstrating the practical steps to apply these experiments in teaching at secondary schools has been recently developed. It is hoped that the use of small-scale experiments will be developed widely as an effective approach to teaching science subjects in Vietnam in the upcoming years.

Applying small-scale experiments in teaching science to students has garnered a lot of interest from worldwide scientists. Compared to conventional experiments that are performed in regular laboratories, small-scale experiments have a variety of advantages including consuming a small number of chemicals and using small-size reusable apparatuses, thus saving money and contributing to protecting human health, safety, and the environment. In addition, applying small-scale experiments helps to develop students’ science competence, critical thinking, and learning interests in experimental subjects. However, using small-scale experiments in teaching science in Vietnam has not been widespread yet, with not many studies focusing on this topic. Therefore, this study demonstrates basic ideas and strategies to design and apply small-scale experiments in teaching. Following the content and requirements of the General Education Program in 2018, a system of small-scale experiments used in the “Substances and their changes” topic in Science subjects is designed. A website demonstrating the practical steps to apply these experiments in teaching at secondary schools has been recently developed. It is hoped that the use of small-scale experiments will be developed widely as an effective approach to teaching science subjects in Vietnam in the upcoming years.