Clear the landing zone of rocks

You have four rocks arranged in a square. Clear them with your robot.

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26 Feb 2026
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LEGO Education SPIKE Prime

Body

The rocks

You can use any objects you have at hand, such as large caps, small balls, or LEGO parts from the sets.

The arrangement

Arrange the rocks in a square. This will help prepare you for a future task - moving in a square.
Of course, the teacher may arrange the rocks differently at the start of the class.

One program, one launch

Your task is to clear as many rocks as possible with only one program. You cannot run the program four times to collect each rock separately.

Step by step

Even though you need to create a longer program, you do not have to write it all at once. Add and test the commands one by one.

Courses and lessons with this Tutorial

This Tutorial is used in the following courses and lessons

Level A: Python Foundations – Robotics with LEGO SPIKE Prime

This is the first level of the LEGO Robotics Curriculum with Python, designed for students in grades 2, 3, and 4.

In this robot adventure, students learn to control robots using real Python code, while teachers guide them through their first steps in text-based programming. Throughout the level, students build a variety of LEGO SPIKE Prime robot models and program them to move, turn, and complete tasks with increasing precision.

Step by step, students learn how to read, understand, and write their own Python programs. Through fun and creative challenges, they bring their robots to life and discover how code can control movement, solve problems, and interact with the world. Along the way, they explore concepts such as navigation, obstacle avoidance, and sensor-based behavior.

The curriculum is designed to help teachers introduce programming in an engaging and approachable way while giving students plenty of opportunities to experiment, test ideas, and develop confidence in their coding skills.

By the end of the level, students apply everything they have learned in an exciting robotics competition. Using their own programs and robot designs, they complete missions on a competition field with boxes, putting their coding, engineering, and problem-solving skills to the test.

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Lesson 4 - Strange Bot

Introduction

Today, we will build a robot that can automatically clear a landing site.

Sending robots to the Moon is very expensive. Because of this, they are designed to fit into small spaces on spacecraft, rather than being easy to control. Today’s robot is built to simulate this challenge.

Before a spacecraft lands on the Moon, a robot is sent first to clear the landing area. Your robot starts on the Moon, and its task is to prepare the site for the landing of a larger spacecraft.

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