Each group needs:

• LEGO MINDSTORMS EV3 robot, such as EV3 Core Set (5003400) at https://education.lego.com/en-us/products/lego-mindstorms-education-ev3-core-set/5003400#lego-mindstorms-education-ev3
• LEGO MINDSTORMS Education EV3 Software 1.2.1, free online, you have to register a LEGO account first; at https://www.lego.com/en-us/mindstorms/downloads/download-software
• computer, loaded with EV3 1.2.1 software
• 1 marker or highlighter
• 1 large piece of white paper (create by taping together enough pieces of 8.5" x 11" [21.59cm x 27.94cm] white copier paper to cover the area the LEGO robot will travel; test the activity without the marker to determine the approximate robot travel area)
• 1 ruler (with centimeter markings)
• yarn
• 1 calculator
• tape
• notepad and pen

Note: This activity can also be conducted with the older (and no longer sold) LEGO MINDSTORMS NXT set instead of EV3; see below for those supplies:

• LEGO MINDSTORMS NXT robot, such as the NXT Base Set
• computer, loaded with NXT 2.1 software