Each group needs:

• LEGO MINDSTORMS NXT robot, such as the NXT Base Set
• LEGO MINDSTORMS Education NXT Software 2.1
• computer, loaded with NXT 2.1 software and four rbt robot programs (see Attachments)
• Sensing Your Surroundings Building Instructions, one per group
• Sensing Your Surroundings Worksheet, one per student

To share with the entire class:

• demonstration items, such as a tennis ball and baseball, or the red and blue LEGO balls (included in the base set), and/or some audio files (see online website sources in the Additional Multimedia Support section)
• (optional) pictures of everyday items that use sensors, such as smoke detector, thermostat, iPhone