Christa McAuliffe Commemorative Coin Act of 2017 This bill directs the Department of the Treasury to mint and issue not more than 350,000 $1 silver coins in commemoration of Christa McAuliffe, a teacher tragically killed in the Space Shuttle Challenger Disaster. The design of the coins shall bear an image and the name of Christa McAuliffe on the obverse side and a design on the reverse side that depicts the legacy of McAuliffe as a teacher. Treasury may issue the coins from January 1-December 31, 2020. All surcharges received by Treasury from the sale of the coins shall be paid to the FIRST robotics program for the purpose of engaging and inspiring young people, through mentor-based programs, to become leaders in the fields of science, technology, engineering, and mathematics.