ISTD faculty and 3DC student club co-organized an Introduction to Computational Thinking workshop from the 8th to the 12th of January 2017. The workshop is targeted to freshmore students with no computing background. In this workshop, the participants are introduced to some basic computational thinking concepts using Python programming language. They also apply this computational thinking using robot or simulator. The activity was conducted in a very hands-on manner by employing CodeAvengers online platform for the teaching materials, and some student helpers as facilitators. The workshop concluded with a final challenge on the robot activity and some programming test to measure their learning gain during the workshop.