Introduction to Python Programming

Active learning helps students connect abstract programming concepts to concrete actions. By writing, debugging, and explaining code together, they move beyond memorizing syntax to understanding how logic shapes behavior. This hands-on work builds confidence and reveals misconceptions early, when they are easiest to correct.

• JC 1
• Computing
• 3 activities
• 25 min–40 min

Learning Objectives

1. Construct a simple Python program that accepts user input for a name and age, and then prints a personalized greeting.
2. Differentiate between integer, float, and string data types by providing examples of each and explaining their typical use cases.
3. Explain the importance of using descriptive variable names by rewriting a code snippet that uses non-descriptive names.
4. Calculate the result of a simple arithmetic operation using variables of different numeric data types.

Peer Teaching

⏱ 30 min·Pairs

Peer Teaching: Code Review Circles

Students exchange their solutions to a programming logic puzzle. They must use a checklist to identify 'code smells' like global variables or redundant loops and suggest improvements to their peer's work.

Prepare & details

Construct a simple Python program to take user input and display output.

Facilitation Tip: During Code Review Circles, provide a rubric that focuses on clarity, modularity, and correctness to guide peer feedback.

Setup: Presentation area at front, or multiple teaching stations

Materials: Topic assignment cards, Lesson planning template, Peer feedback form, Visual aid supplies

• Understand
• Apply
• Analyze
• Create
• Self-Management
• Relationship Skills

Inquiry Circle

⏱ 40 min·Small Groups

Inquiry Circle: The Function Factory

Groups are given a large task, like calculating a student's GPA. They must work together to decide how to break this into smaller, reusable functions, defining exactly what inputs and outputs each function needs before writing any code.

Prepare & details

Differentiate between integer, float, and string data types in Python.

Facilitation Tip: For The Function Factory, assign each group one function to dissect and improve, then rotate so all teams contribute.

Setup: Groups at tables with access to source materials

Materials: Source material collection, Inquiry cycle worksheet, Question generation protocol, Findings presentation template

• Analyze
• Evaluate
• Create
• Self-Management
• Self-Awareness

Simulation Game

⏱ 25 min·Whole Class

Simulation Game: Variable Scope Role Play

Assign students roles as 'Global Space' or 'Function A.' Use physical containers to represent variables. Students must pass messages and values, demonstrating how a variable inside a function cannot be seen by the global space unless returned.

Prepare & details

Explain the importance of meaningful variable names in programming.

Facilitation Tip: In Variable Scope Role Play, assign roles explicitly so observers can see how changes in one scope affect others.

Setup: Flexible space for group stations

Materials: Role cards with goals/resources, Game currency or tokens, Round tracker

• Apply
• Analyze
• Evaluate
• Create
• Social Awareness
• Decision-Making

Teaching This Topic

Start with small, focused tasks that build toward larger programs. Use live coding to model problem-solving, including mistakes and corrections. Research shows that students learn best when they see experts struggle and recover. Avoid overwhelming them with long lectures; instead, let them practice in short, structured bursts.

What to Expect

Students will write code that is modular, readable, and correct. They will explain their choices clearly and revise based on feedback. You will see evidence of this in peer discussions, clean function definitions, and thoughtful variable names.

Watch Out for These Misconceptions

Common Misconception

During Code Review Circles, watch for students who argue that global variables are acceptable because they seem simpler to use.

What to Teach Instead

Have them trace a bug where one function accidentally overwrites a global variable, causing another function to fail. Use the provided code snippets to show how scoping rules protect against unintended side effects.

Common Misconception

During The Function Factory, watch for students who combine multiple tasks into one long function to save space.

What to Teach Instead

Ask them to map each step of their complex function to a separate function. Use the activity’s worksheet to highlight how smaller functions are easier to test, document, and reuse.

Assessment Ideas

Exit Ticket

After Code Review Circles, collect peer feedback sheets. Check that students correctly identified modularity issues, unclear variable names, and improper use of global variables in the reviewed code.

Quick Check

During The Function Factory, observe how students break down a problem into smaller functions. Look for descriptive names, clear inputs and outputs, and correct use of parameters.

Discussion Prompt

After Variable Scope Role Play, ask students to explain how changing a variable in one scope affected another. Use their role-play notes to assess their understanding of variable lifetime and visibility.

Extensions & Scaffolding

• Challenge: Ask students to refactor a complex function into three smaller functions with clear purposes and shared documentation.
• Scaffolding: Provide a partially written function with missing steps and ask students to fill in the logic one block at a time.
• Deeper exploration: Introduce list comprehensions as a way to simplify loops, then have students compare readability and performance of their loop-based and comprehension-based solutions.

Key Vocabulary

Variable	A named storage location in a computer's memory that holds a value which can change during program execution.
Data Type	A classification that specifies which type of value a variable can hold and what operations can be performed on it. Common types include integers, floating-point numbers, and strings.
Integer	A whole number, positive or negative, without decimals. Used for counting or representing discrete quantities.
Float	A number, positive or negative, that contains one or more decimal places. Used for representing measurements or values that require fractional precision.
String	A sequence of characters, such as letters, numbers, and symbols, enclosed in quotation marks. Used for representing text.
Input	Data that is provided to a program from an external source, typically from the user via the keyboard.