This "BOGOnotes" handout is an excellent supplement to the BOGObiology video on Hypertonic, Hypotonic and Isotonic Solutions. This 15 page set of "BOGOnotes" features multiple note-taking templates, key vocabulary, tonicity word problems, and a set of "stretch it" questions to prompt critical thinking. The corresponding Tonicity video tutorial is located here: https://youtu.be/rMa9MzP19zI I developed this method of guided note-taking for my own students when I discovered that they often needed s