Objects and Obstacles

Educational standards

NGSS MS-ETS1-4 Develop a model to generate data for iterative testing and modification of a proposed object, tool, or process such that an optimal design can be achieved.CSTA 2-CS-01 6-8 Recommend improvements to the design of computing devices, based on an analysis of how users interact with the devices.Common Core CCSS.MATH.CONTENT.7.G.B.4 Know the formulas for the area and circumference of a circle and use them to solve problems; give an informal derivation of the relationship between the circumference and area of a circle.

Learning Targets

Use Sensors to guide the movement of a robot

Success Criteria

Students can use the Ultrasonic Sensor to detect and respond to an object.

Sensors

Modular robots are useful because they can be extended and reconfigured to perform a wide range of tasks. Adding sensors enables them to react to their environment so that they can do things like detect obstacles and avoid collisions.

Human Robot

Can you move around a crowded room with nothing but your sense of hearing? Work in a team of at least 3 people, blindfold one of the team members and have them walk toward a solid wall that is 10 to 15 feet away. As they walk they must make a sound, counting only on the reflection of the sound to let them know where they are. The rest of the team members should make sure that they do not run into the wall!

Questions to Ponder

Do you know of any robots that can detect objects?
Why is it useful for robots to be able to detect objects?
What’s ultrasound, and how does an Ultrasonic Sensor work?

Program Your Robot

Open the EV3 Classroom app found on your computer's hard drive and click on Units at the top of the screen,
Complete the Objects and Obstacles lesson.

Class Discussion

What are some other applications for the Ultrasonic Sensor?
Describe a situation in which the Ultrasonic Sensor may not work.

Lego Education Lessons

LEGO, the LEGO logo, the Minifigure, DUPLO, the SPIKE logo, MINDSTORMS and the MINDSTORMS logo are trademarks and/or copyrights of the LEGO Group. ©2019 The LEGO Group. All rights reserved. Use of this site signifies your agreement to the terms of use.