Computer Science
Grade 7
20 min
Lesson 10: Computational Thinking Challenge: A Collaborative Project
Work in groups to use computational thinking to design a solution to a complex problem, presenting their process and results.
What you'll learn
- Collaboratively design a solution to a given problem by decomposing it into smaller, manageable parts.
- Identify and explain at least three different strategies for solving a computational problem as a team.
- Apply the concepts of algorithms and debugging to collaboratively create a working program that meets the project requirements.
- Evaluate the effectiveness of different collaborative strategies used during the project and suggest improvements for future teamwork.
Tutorial Preview
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Introduction & Learning Objectives
Learning Objectives
Apply the four pillars of computational thinking (decomposition, pattern recognition, abstraction, algorithms) to a project plan.
Break down a large project idea into smaller, manageable tasks for a team.
Define clear roles and responsibilities within a small project group.
Design a simple algorithm (flowchart or pseudocode) for a core feature of a collaborative project.
Create a plan for integrating individual code components into a single working program.
By the end of a this lesson, students will be able to effectively communicate project progress and challenges to their teammates.
Have you ever tried to build a giant LEGO set with friends? 🤔 How do you decide who builds what so it all fits together perfectly in the end?
In this lesson, we'll us...
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Key Concepts & Vocabulary
TermDefinitionExample
DecompositionThe process of breaking down a large, complex problem into smaller, more manageable sub-problems.If the project is to build a quiz app, you would decompose it into smaller tasks like: 1) creating questions, 2) displaying questions, 3) checking answers, 4) keeping score, and 5) showing the final result.
Task DelegationAssigning specific sub-problems or tasks to different members of a team based on their skills and the project plan.In the quiz app team, Maria could be in charge of creating the questions (content), while Leo is in charge of writing the code for keeping score (logic).
Modular DesignDesigning a program as a collection of independent modules (like functions or files) that can be developed separately and then connected.Creating a `check_answer(...
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Core Syntax & Patterns
The 'Divide and Conquer' Strategy
1. Decompose the problem. 2. Assign tasks. 3. Develop individual parts. 4. Integrate the parts.
Use this four-step process for any large project. It ensures that the problem is broken down logically and that everyone on the team knows their role, making the final integration step much smoother.
The 'Function Stub' Pattern
def function_name(parameters):
# TODO: Write the code for this later
return expected_value
When your code needs a function that a teammate is building, you can create a temporary placeholder version called a 'stub'. This allows you to test your part of the code without having to wait for your teammate to be completely finished.
4 more steps in this tutorial
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Challenging
A team is planning a new project: a 'Pet Simulator' app. The pet needs to be fed, played with, and put to sleep. What would be the most effective first step in creating a project plan based on the 'Divide and Conquer' strategy?
A.Start coding the 'play' function immediately.
B.Assign one person to be the 'Project Manager'.
C.Choose the final name and icon for the app.
D.Decompose the project into modules: a 'hunger' module, a 'happiness' module, and a 'sleepiness' module, and define how they interact.
Challenging
A team's project is failing. Their code won't integrate, and two members feel their tasks are trivial while one member is overwhelmed. What single change to their process would have most likely prevented BOTH problems?
A.more thorough initial decomposition and interface planning session.
B.Using a different programming language.
C.Adding more comments to their code.
D.Holding daily progress meetings.
Challenging
Your team of three is building a simple Quiz App. Which task delegation plan best follows the principles of modular design and even work distribution?
A.Person 1: Writes all questions. Person 2: Codes the entire app. Person 3: Tests the app.
B.Person 1: Codes the module to load questions from a list. Person 2: Codes the module to display questions and get user answers. Person 3: Codes the module to check answers and keep score.
C.All three people work together on the score-keeping function first, then move to the next function together.
D.Person 1: Designs the user interface. Person 2: Codes the user interface. Person 3: Codes the game logic.
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Lesson 10: Computational Thinking Challenge: A Collaborative Project is a Grade 7 Computer Science lesson on ExcelOS.
What will I learn in Lesson 10: Computational Thinking Challenge: A Collaborative Project?
You'll be able to: Collaboratively design a solution to a given problem by decomposing it into smaller, manageable parts; Identify and explain at least three different strategies for solving a computational problem as a team; Apply the concepts of….
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How many practice questions are included with Lesson 10: Computational Thinking Challenge: A Collaborative Project?
This lesson includes 27 practice questions across multiple difficulty levels, each with instant feedback and explanations.