Computer Science Grade 6 20 min

Robot Challenges: Solving Problems with Robots

Students will participate in robot challenges to apply their knowledge and skills.

Tutorial Preview

1

Introduction & Learning Objectives

Learning Objectives Identify the three main components of a robot: sensors, a controller (brain), and actuators. Write a sequence of text-based commands to make a robot perform a specific task. Use a 'repeat' loop to make a robot perform a set of actions multiple times. Use a simple 'if' statement to make a robot react to sensor input. Define a variable to store a simple value, like a number or a color. Debug a short robot program by reading the code line-by-line to find a mistake. Have you ever wondered how a robot vacuum avoids falling down the stairs or how a Mars rover knows where to drive? 🤖 Let's learn how to give robots their instructions! In this lesson, you will learn the basic parts of a robot and how to write simple computer programs to...
2

Key Concepts & Vocabulary

TermDefinitionExample RobotA machine that can be programmed to carry out a series of actions automatically.A robot arm in a car factory that is programmed to weld a car door. SensorA device that detects or measures something about the world and sends that information to the robot's brain.A color sensor on a robot that can tell if it's on a black line or a white floor. ActuatorThe part of a robot that moves or controls a mechanism. It's like the robot's muscles.A motor that spins a wheel to make the robot move forward. AlgorithmA list of step-by-step instructions for completing a task.To make a peanut butter sandwich, your algorithm is: 1. Get two slices of bread. 2. Get peanut butter. 3. Spread peanut butter on one slice. 4. Put slices together. ProgramAn algorithm wri...
3

Core Syntax & Patterns

Sequential Commands robot.command(value) Commands are run one after another, in the exact order you write them. The robot will not start the second command until the first one is finished. Repeat Loop repeat 4 times: # code to repeat goes here # it must be indented! Use a repeat loop when you want to run the same set of commands multiple times. This saves you from typing the same code over and over. If-Then Conditional if sensor.sees_wall() == True: # do this action # only if the condition is true Use an 'if' statement to make the robot make a decision. The code inside the 'if' statement only runs when the condition is met (is True).

4 more steps in this tutorial

Sign up free to access the complete tutorial with worked examples and practice.

Sign Up Free to Continue

Sample Practice Questions

Challenging
You are building a robot to sort LEGO bricks by color (red and blue) and size (small and large). What is the minimum combination of sensors your robot would need?
A.One touch sensor and one motor.
B.One color sensor and one distance/size sensor.
C.Two color sensors.
D.One sound sensor and one light sensor.
Challenging
In a robot racing challenge, you can increase motor power to make the robot faster, but this often makes its turns less precise. This situation is an example of a:
A.Software bug
B.Hardware failure
C.Trade-off between speed and accuracy
D.Conditional statement
Challenging
A robot must follow a wall on its right side, staying exactly 15cm away. Which pseudo-code describes the best control algorithm?
A.If distance > 15, stop. If distance < 15, go faster.
B.If distance == 15, move forward. Otherwise, stop.
C.If distance > 15, turn slightly right. If distance < 15, turn slightly left. If distance == 15, go straight.
D.Always move forward and turn right every 5 seconds.

Want to practice and check your answers?

Sign up to access all questions with instant feedback, explanations, and progress tracking.

Start Practicing Free

More from Introduction to Robotics: Building and Programming Simple Robots

Ready to find your learning gaps?

Take a free diagnostic test and get a personalized learning plan in minutes.