Big Ideas | Page 24

SCIENCE AND ENGINEERING PRACTICES SAMPLE STUDENT ENGAGEMENT, GRADES K–2 Obtaining, Evaluating, and Find out what should and should not be flushed down toilets and drains. (For example, see the San Francisco Public Utilities Commission’s “Toilets Are Not Trash Cans!” at www.sfwater.org/ trashnottoilets.) Collect pictures or examples of objects that shouldn’t go down the drain, and create a bulletin board display for the school hallway. Communicating Information CROSSCUTTING CONCEPTS SAMPLE STUDENT ENGAGEMENT, GRADES K–2 Cause and Effect Read What Does It Mean to Be Green? by Rana DiOreo and Chris Blair (Little Pickle Press, 2010), or a similar book that identifies things kids can do to help the environment. Discuss what people can do to keep water clean and to save water and electricity. Scale, Proportion, Every time you do something to save water or energy, write or draw it on an animal shape cut from reused paper. Sort your class’s shapes according to the different ways people used less water or energy, and graph the class results using the shapes. Discuss how saving water or energy helps wildlife. and Quantity 24 BIG IDEAS | Grades K–2 | SAN FRANCISCO PUBLIC UTILITIES COMMISSION