Main Idea
| The basic idea for this learning scenario is students to be able to use robotics for the benefit of the environment and to teach the basic structures of informatics. At the end of the course, we can discuss with students more ideas for building similar robots and applications. |
| Creator | Rallis Spiros |
| Subject | Computer science |
| Length | 2 hours |
| Pedagogical Approach | Real-Life and Technology assisted learning |
| Competences | Problem solving Algorithm thinking Debugging |
| Grades | Age (10 – 11), high learning level, basic-intermediate programming knowledge, basic principles of robotics |
| Technologies | Lego Ev3 package |
| Evaluation Tools | At the end of the session students will “run” the program so teachers will evaluate them. |
Learning Activities
Description
Our first discussion with students is about the movements of a robot. Then we will talk about how it will perceive if an object is in front of him and at the end how it will catch the object to take it to the trash. Finally, we will discuss about the importance of collaboration in the construction of the robot.
Specifically, a discussion takes place in class about the evolution of technology. Extending the discussion we should talk about how robot can helps us to protect the environment and we come to the conclusion that by building low-cost robots we protect the environment and consequently improve our lives.
1.First step is students to understand and build a robot that can move safely and efficiently. The basic principles of robotics are a prerequisite.
2. The second step is students to understand how to use the color and distance light sensors and how to place them in their constructions.
3. The third step is students to understand how the robot can move following the black line on the ground. Here they can use the instructions of the worksheets and make the appropriate settings.
4. The fourth step is to program the distance sensor and then the caliper so that the robot manages to locate and grasp the object.
5. The last step is to test students’ constructions in real conditions.
Discussion
1.Is it possible to use the same project to separate the waste (let’s think how to use an ultra-sonic sensor if we have plastic or paper)?
2. What changes can we make in our construction so that it does not carry one object at a time but more?

