Each group needs:

• colored pencil(s)
• Ball Shooter Graphing Worksheet, one per student
• (optional) graph paper (the worksheet includes a grid)

For the class to share:

• 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 (includes programmable EV3intelligent brick; 3 2 interactive servo motors; sound, color, ultrasonic and 2 touch sensors; and many other components and instructions)  
• 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
• 2 LEGO MINDSTORMS touch sensors (two sensors are included in the base kit; a total of four are needed for the activity),
• 1 or more classroom computers/laptops loaded with LEGO Digital Designer software (download from https://www.lego.com/en-us/ldd#full-section-2)

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 the NXT 2.1 software