Book excerpt: Are you still using 20th century techniques to teach science to 21st century students? Update your practices as you learn about current theory and research with the authoritative Handbook of College Science Teaching. The Handbook offers models of teaching and learning that go beyond the typical lecture-laboratory format and provides rationales for updated practices in the college classroom. The 38 chapters, each written by experienced, award-wining science faculty, are organized into eight sections: attitudes and motivations; active learning; factors affecting learning; innovative teaching approaches; use for technology, for both teaching and student research; special challenges, such as teaching effectively to culturally diverse or learning disabled students; pre-college science instruction; and improving instruction. No other book fills the Handbook's unique niche as a definitive guide for science professors in all content areas. It even includes special help for those who teach non-science majors at the freshman and sophomore levels. The Handbook is ideal for graduate teaching assistants in need of a solid introduction, senior faculty and graduate cooridinators in charge of training new faculty and grad students, and mid-career professors in search of invigoration.