Abstract
“Science of water and aqueous solutions” has been offered as an elective course since 2001. I have encouraged first-year students to switch learning modes from passive to active by active-learning methods such as reading in turn, group work, team learning, and presentation. Here, I report the effects of active-learning on “Science of water and aqueous solutions” which I have been working on for 20 years including during the COVID-19 pandemic.
