1. Word cloud
120 seconds
What is a switch statement?
2. Slide
60 seconds
"Create a program in which the robot travels in a straight path indefinitely and takes right turn each time the obstacle is detected at 30 cm.
"
Learning objective:
3. Slide
60 seconds
Switch statements are a programming concept used to make robots like the EV3 react to different situations. It is a type of control structure used in programming to allow different actions to be taken depending on the result of an expression. It is like a big if-then-else statement where a certain set of instructions are run depending on the input.
What is a Switch Statement?
4. Slide
60 seconds
Switch statement: a programming structure used to execute the correct code in a program based on a given condition. It is a type of decision-making structure that compares the value of an expression with the values of different cases and executes the code associated with the matching case. EV3 robot: a type of robot used in educational robotics. It is a programmable robot designed for use in an educational environment. It is controlled by a computer program, and can be used to teach students about robotics and programming. Robot Programming: the process of creating and writing code that tells a robot how to perform a certain task or set of tasks. This includes coding instructions and algorithms that allow the robot to interact with its environment and complete its task.
Concepts:
5. Slide
60 seconds
EV3 robot can differentiate between 3 different types of touch sensors: touch, tilt, and color sensor. EV3 robot can detect objects from up to 7 meters away using its ultrasonic sensor. EV3 robot can use its switch statement to trigger a response when an event is detected, like a button press or a sensor reading.
Did you know?
6. Open question
180 seconds
Work together in pairs: What is the most important part of the EV3 robot switch statement that needs to be included in the program to make the robot take a right turn each time the obstacle is detected at 30 cm?
7. Personalised Feedback
360 seconds
Can you explain how the switch statement works in EV3 robot programming and give an example of how it can be used?
8. Open question
180 seconds
Work together in pairs: Q: How can using a switch statement help you make your EV3 robot perform different tasks?
9. Drawings
450 seconds
Brain break: Draw a happy sun with a silly face enjoying an ice cream
10. Poll
60 seconds
What is a switch statement in EV3 programming?
- A programming structure used to execute different code blocks based on different conditions
- A type of motor that can rotate continuously in either direction
- A type of sensor used to detect light intensity
11. Poll
60 seconds
What is the syntax for creating a switch statement in EV3 programming?
- if (condition) { //code block } else if (condition2) { //another code block } else { //default code block }
- switch (variable) { case value1: //code block 1 break; case value2: //code block 2 break; default: //default code block }
12. Poll
60 seconds
Can multiple cases be executed in a single switch statement?
- Yes, multiple cases can be executed per switch statement by omitting the 'break' keyword
- No, only one case can be executed per switch statement
13. Poll
60 seconds
What happens if none of the cases match the variable value in a switch statement?
- 'null' is returned and the program continues executing from where it left off without any error message
- The default code block is executed
14. Poll
60 seconds
In what scenarios would you use a switch statement instead of an if-else-if ladder?
- When there are many possible conditions to check and each condition has its own unique set of instructions
- When there are only two possible conditions to check and each condition has its own unique set of instructions
Made with ❤️ from Norway