Math teacher Josh Davis was blindsided. An email from Oregon's Ridgeview High School principal landed in his inbox with a video note and disclaimer saying it was the coolest thing he had seen. David opened the 5-minute clip and found himself with a lump in his throat. "I teared up," he said. "Most of my colleagues did, if not all of them. It was very touching, very moving. We were blown away." It was a remarkable collaboration of gratitude from 154 students. Each student holds up one word that collectively spells out messages about what their teachers and staff mean to them. At the end of the video, the student images morph into the school's Ravens logo. Initiated by senior Cole Durr and friends, the project garnered interest from 15% of the school's 954 students and was completed in one short week. Teachers responded with their own photo slideshows, too!

Watch video below.