. >>> unforgettable day on the job for tina allison.he thought she was going to a regular pep rally at thurgood marshall academy. she was surprised to learn she won the educator award. they are given out every year to award and encourage outstanding teachers. it comes with a cash prize of $25,000. big congrats to her. she is happy. teacher of the year. the scary possibility of a mass shooting at a school sparked students to invent a device that is so clever that they got a big grant to develop it. it is against the rules to lock classrooms door due to fire regulations and students in northwest d.c. said, hmm, i could come up with a device. this device locks the door from the inside using a pvc piping, hinge, and a good, strong nail. mi m.i.t. liked the idea and sent them a check for $6600. >> it was overwhelming. we are not doing this for all the publicity but doing it to help other people. >> the students hope their invention will some day be fully functional in schools across the country. >>> another new technology is drawing big atte