Colors and Lines
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 motors to manipulate your environment.
Success Criteria
Students can use the Ultrasonic Sensor to detect and and respond to an object.
Follow That Line!
Hardcoding the exact movements that a robot has to make isn’t very efficient. Therefore, robots have different guiding systems to help them navigate their environment. One simple yet effective option is to use colored lines on the floor, which a robot can follow using a sensor.
Human Robot
How would you know how to pick up a specific color object if you could not see? Work in a team of at least 2 people, blindfold one of the team members and place three different colored Lego brick in front of them on a table. Figure out the best way to get your human robot to pick of the bricks in this order: blue, yellow, red
Questions to Ponder
What do you do to figure out the best path around a crowded room?
What are some factors that might make it difficult to move through the crowded room?
What are the advantages and limitations of using colored lines as a means of navigation?
How does the EV3 Color 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 Colors and Lines lesson.
Class Discussion
What was the main challenge of programming the robot to follow lines using the color sensor?
What improvements do you think could be made to the design or programming that you just used?
