CSP Python – Lesson 7.2: Defining Function | Structure & Code Organization

Description

Help students move from understanding what functions are to defining their own functions in Python with this classroom-ready Computer Science Principles (CSP) worksheet.

In Lesson 7.2 — Defining Functions, students learn how to create custom functions using the def keyword, focusing on function structure, naming conventions, indentation, and common errors. This lesson builds directly on Lesson 7.1 and emphasizes conceptual understanding before complexity, preparing students for parameters and return values later in the unit.

Designed in the Mr. H Codes instructional style, this resource is clear, structured, student-friendly, and sub-ready, making it easy to implement with confidence.

🔹 Students Will Learn To

Write simple functions using def in Python
Identify and label the parts of a function definition
Predict function behavior when a function is called

📄 What’s Included

✔ Guided notes with clear Python examples
✔ Function-part labeling activity (def, name, colon, indentation, body)
✔ Vocabulary matching activity
✔ Concept-based (unplugged) reasoning questions
✔ Code analysis & debugging practice
✔ JDoodle coding task with challenge extension
✔ Reflection prompts
✔ Complete teacher guide with pacing, tips, misconceptions, and answer key

🧠 Best For

Computer Science Principles (CSP)
Python-based CS courses
Grades 9–12
Intro to functions & program organization
Classwork, sub plans, or homework

⏱️ Time Required

One class period (50–75 minutes)

🖥️ Programming Language

Python

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CSP Python – Lesson 7.2: Defining Function | Structure & Code Organization

Name: CSP Python – Lesson 7.2: Defining Function | Structure & Code Organization
Brand: Mr. H Codes
SKU: 15175804
Price: 3.75 USD
Availability: InStock

Mr. H Codes

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$3.75

Highlights

Digital downloads

Microsoft Word

Grades

9th - 12th, Adult Education, Higher Education

Subjects

Computer Science - Technology

Standards

CCSSMP1

CCSSMP4

CCSSMP6

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157

Description

Help students move from understanding what functions are to defining their own functions in Python with this classroom-ready Computer Science Principles (CSP) worksheet.

Designed in the Mr. H Codes instructional style, this resource is clear, structured, student-friendly, and sub-ready, making it easy to implement with confidence.

🔹 Students Will Learn To

Write simple functions using def in Python
Identify and label the parts of a function definition
Predict function behavior when a function is called

📄 What’s Included

🧠 Best For

Computer Science Principles (CSP)
Python-based CS courses
Grades 9–12
Intro to functions & program organization
Classwork, sub plans, or homework

⏱️ Time Required

One class period (50–75 minutes)

🖥️ Programming Language

Python

Report this resource to TPT

Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

This product has not yet been rated.

Rated 0 out of 5

Questions & Answers

Standards

to see state-specific standards (only available in the US).

CCSSMP1

Make sense of problems and persevere in solving them. Mathematically proficient students start by explaining to themselves the meaning of a problem and looking for entry points to its solution. They analyze givens, constraints, relationships, and goals. They make conjectures about the form and meaning of the solution and plan a solution pathway rather than simply jumping into a solution attempt. They consider analogous problems, and try special cases and simpler forms of the original problem in order to gain insight into its solution. They monitor and evaluate their progress and change course if necessary. Older students might, depending on the context of the problem, transform algebraic expressions or change the viewing window on their graphing calculator to get the information they need. Mathematically proficient students can explain correspondences between equations, verbal descriptions, tables, and graphs or draw diagrams of important features and relationships, graph data, and search for regularity or trends. Younger students might rely on using concrete objects or pictures to help conceptualize and solve a problem. Mathematically proficient students check their answers to problems using a different method, and they continually ask themselves, "Does this make sense?" They can understand the approaches of others to solving complex problems and identify correspondences between different approaches.

CCSSMP4

Model with mathematics. Mathematically proficient students can apply the mathematics they know to solve problems arising in everyday life, society, and the workplace. In early grades, this might be as simple as writing an addition equation to describe a situation. In middle grades, a student might apply proportional reasoning to plan a school event or analyze a problem in the community. By high school, a student might use geometry to solve a design problem or use a function to describe how one quantity of interest depends on another. Mathematically proficient students who can apply what they know are comfortable making assumptions and approximations to simplify a complicated situation, realizing that these may need revision later. They are able to identify important quantities in a practical situation and map their relationships using such tools as diagrams, two-way tables, graphs, flowcharts and formulas. They can analyze those relationships mathematically to draw conclusions. They routinely interpret their mathematical results in the context of the situation and reflect on whether the results make sense, possibly improving the model if it has not served its purpose.

CCSSMP6

Attend to precision. Mathematically proficient students try to communicate precisely to others. They try to use clear definitions in discussion with others and in their own reasoning. They state the meaning of the symbols they choose, including using the equal sign consistently and appropriately. They are careful about specifying units of measure, and labeling axes to clarify the correspondence with quantities in a problem. They calculate accurately and efficiently, express numerical answers with a degree of precision appropriate for the problem context. In the elementary grades, students give carefully formulated explanations to each other. By the time they reach high school they have learned to examine claims and make explicit use of definitions.