Computer Science 20 - Saskatchewan¶

• How to Use This Textbook - For Students
• How to Use This Textbook - For Teachers
• Acknowledgments

• 1. Introduction to Scratch (Broadcasts)
• 2. Controlling a Character with WASD (Repetition and Conditionals)
• 3. Chase the Mouse and Drawing Polygons (Repeat and If/Else)
• 4. Drawing Polygons - Part 2 (Variables and Nested Repeat)
• 5. Tracing Code and Cannonball Motion (Repeat Until)
• 6. Making a Start Screen (Repeat, If/Else, Broadcast)
• 7. Timing Issues and Dodging Game (Broadcasts and Variables)
• 8. Project Work Period
• 9. Built-In Variables (Tempo, Answer and Timer)
• 10. Number Guessing Game (Pair Programming)
• 11. Making Your Own Blocks (Functions)
• 12. Student Directed Project

• Step 0: Transitioning To Text
• Step 1: Move Reeborg Home and Saving Your Work
• Step 2: Taking and Putting Down Objects
• Step 3: Turning Left and Stepping Through Code
• Step 4: Comments
• Step 5: Defining New Functions
• Step 6: Saving Functions in the Library
• Step 7: Thinking and Birthday Message
• Step 8: Asking Questions
• Step 9: Repeating Instructions
• First Practice Quiz - repeat, if, def
• Step 10: Jumping Hurdles (repeat and functions)
• Step 11: If/Else
• Step 12: While
• Step 13: If/Elif/Else
• Step 14: The not Keyword
• Step 15: It’s Going to Rain
• Step 16: Pseudocode
• Step 17: Solving a Maze
• Step 18: Harvest Time Revisited
• Step 19: Second Lake Walk
• Step 20: Another Rainy Day
• More Challenges
• Second Practice Quiz

• 1. Quick Python Overview
• 2. Variables, Data Types, and User Input
• 3. Conditionals
• 4. Input/Output Assignment
• 5. String Operators and Assignment Work Time
• 6. Other Input Methods (easygui_qt)
• 7. Which Quotes to Use When Creating Strings
• 8. The while Statement
• 9. Our First Turtle Program
• 10. Multiple Turtles and for Loops
• 11. Logical Operators
• 12. The Time Module and Using a Micro:bit

• 1. Loops Review and Turtle Drawing
• 2. Turtle Races
• 3. Functions Introduction
• 4. Turtle Drawing Practice
• 5. Loops Practice Quiz and Assignment Work Period

• 1. Fruitful Functions and Variable Scope
• 2. Writing Fruitful Functions Practice
• 3. The Accumulator Pattern
• 4. Boolean Functions and Randomly Walking Turtles

• 1. Micro:bit Controlled Turtle Race
• 2. Fruitful Functions and the Micro:bit
• 3. Micro:bit Custom Images
• 4. Animating a Micro:bit LED Image with a for Loop
• 5. Reaction Game with Micro:bit

• 1. Nested Loops and Image Processing
• 2. Image Processing Practice
• 3. Image Processing With Conditionals
• 4. Functions and Image Processing

• 1. String Index, Length, Slicing and Traversal
• 2. String Traversal (by index), and the Accumulator Pattern with Strings
• 3. String Methods
• 4. Turtle Drawing and Strings (L-Systems)

• 1. Using Lists
• 2. List Methods
• 3. Lists and Turtle Drawing

Student-Directed Research

• Project Overview

• 1. Reeborg Review
• 2. Python Review

Computing and Society

• Underlying Technology of Computing Devices and the Internet
• How Computers Work Videos
• How the Internet Works Videos
• How the Internet Works Practice Quiz
• The HyperText Markup Language
• Cascading Style Sheets (CSS)
• HTML and CSS Practice Quiz
• Digital Security and Privacy Implications

Career Exploration

• Computer Science Career Paths

Appendices

• EasyGUI_Qt Reference
• Turtle Confusion Challenges
• Micro:bit Reference