Team-teach with — and learn from — intrepid field geologist, ice age expert, and plain-talking Harvard professor Dr. Paul Hoffman. He captivates students and their teacher with his passion, curiosity, and field discoveries, including signs of accelerating climate change today. Satellite photos, maps, charts, and graphs interwoven with student music, art, and original drawings enliven the science. Dr. Hoffman’s film is 1.6 hours, and includes a 20 minute student interview, and a five minute teacher interview. There are over thirty chapter stops, one for each teaching point or question, so the viewer may navigate as he or she likes, spending as much or as little time on a question or clip as the viewer wishes. Suitable for general audiences, teachers and students in grades 5-12, professional development for teachers of all grades and subjects, and informal educators.