Some people know how to turn lemons into lemonade. Telma Rangel has figured out how to convert trash into treasure. It all began when Mother’s Cookies, an Oakland-based company, went out of business in 2008 and Rangel lost her job as operations manager. Suddenly, the mother of five had time on her hands. Rangel turned her attention to Noble Elementary School in San Jose, where her two younger children – Marissa and Gary – attend third and fourth grades.