Teach students how to write programs that make decisions with this complete Unit 4 lesson bundle for Computer Science Principles.

This bundle includes Lessons 4.1–4.6, guiding students from basic Boolean logic to nested conditional statements through structured, classroom-ready worksheets. Each lesson emphasizes predict-the-output reasoning, logic tracing, and real-world decision making using Python.

Designed to be plug-and-play, this unit works seamlessly for both traditional and block schedules and builds a strong foundation for future topics like loops and algorithms.

📘 What’s Included

📚 Unit 4 — Conditionals & Decision Making (Python)

✔ Lesson 4.1 — Boolean Values
✔ Lesson 4.2 — Comparison Operators
✔ Lesson 4.3 — If Statements
✔ Lesson 4.4 — If–Else Statements
✔ Lesson 4.5 — Logical Operators (and, or, not)
✔ Lesson 4.6 — Nested Conditionals

✏️ Each Lesson Includes

✔ Student worksheet (printable & digital-friendly)
✔ Guided notes and examples
✔ Vocabulary and concept checks
✔ Unplugged logic reasoning
✔ Code tracing & predict-the-output questions
✔ JDoodle Try It Yourself Python activity
✔ Reflection prompts
✔ Full Teacher Guide with pacing, misconceptions, and answer keys

🧠 Skills Students Practice

• Evaluating Boolean expressions
  
• Using comparison operators
  
• Writing if and if–else statements
  
• Combining conditions with and, or, and not
  
• Tracing nested decision logic
  
• Debugging common logic and indentation errors
  

🧑‍🏫 Teacher-Friendly Design

• No prep required
  
• Sub-ready and classroom-tested
  
• Consistent Mr. H Codes formatting throughout
  
• Designed for CSP Big Ideas and reasoning-based instruction
  

📌 Programming Language: Python
📌 Grade Levels: 9–12, Higher Education, Adult Education
📌 Time Required: 6–8 class periods