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14. Round trip
The teams take turns. The first plots the outward journey while the second must bring Roby back to the starting point. It seems easy but it is not, especially if you only plan the moves in your mind without actually moving Roby...
Required material: CodyRoby cards, a 5 × 5 chequered board, two pawns, and pieces of paper to be used to mark the boxes already visited.
Required material: CodyRoby cards, a 5 × 5 chequered board, two pawns, and pieces of paper to be used to mark the boxes already visited.
Questions
Q1. Is it possible for the program that brings Roby back to the starting point to be shorter (i.e. composed of fewer instructions) than the outward one?
If you are interested in more unplugged activities, or activities in different programming languages, robotics, micro:bit etc., check out the EU Code Weeks “Learning Bits” with video tutorials and lesson plans for primary, lower secondary and upper secondary schools. Also have a look at the EU Code Week resources page for learners and teachers.