You know that moment when a student says, “Why do we even need to know this?” while you’re staring at a graph of a function? I’ve been there too. The truth is, functions aren’t just random numbers and lines—they’re everywhere in the real world, from vending machines to stock trends, hourly wages to fast food restaurants. And the best part? Students notice when the math actually connects to something they care about.
That’s exactly why I created the Functions in Action project. It gives students hands-on experience with real-world scenarios while exploring all kinds of function features: tables, graphs, domain, range, zeros, and more. Plus, the project is 100% editable, so you can add, remove, or adjust whichever sections fit your class and function review needs. This project is flexible, engaging, and designed to help all learners succeed!
Table of Contents
Student Handout
The student handout is the hub of the project. It provides an overview, objectives, step-by-step instructions, and the real-world scenarios that students will explore. Here’s a closer look at each piece:
Objectives:
By completing this project, students will:
- Identify and analyze key function features such as domain, range, ordered pairs, independent/dependent variables, zeros, minimum/maximum points, and graphs
- Write linear and piecewise functions based on real-world data
- Evaluate functions and interpret results in context
- Collect, organize, and present data visually
- Reflect on their learning and explain their reasoning
Step-by-Step Instructions:
The handout walks students through each project part with clear directions, guiding them from data collection to graphing, analysis, and reflection. Students don’t just plug in numbers; they research real data, like the stock price of a company they actually recognize or the hourly wage of a job or industry they might want to pursue one day. All research links are included in the project, so students know exactly where to find reliable information without going down an internet rabbit hole.
Real-World Topics & Function Features:
| Vending Machines | Ordered pairs, table, independent/dependent variables |
| Stock Trends | Domain, range, minimum/maximum points, evaluating a graph, zeros |
| Hourly Wages | Slope, write a linear function, evaluate a function |
| Fast Food Restaurants | Collect data, write a piecewise function, interpret a graph |
Each scenario is carefully designed to highlight different key features of functions, giving students a broad understanding of how functions operate in real-world contexts.
Presentation Template
For students, the project comes with a ready-to-use presentation template (Google Slides and PowerPoint) that makes it easy to organize and present their work. Each slide is thoughtfully designed with spaces for graphs, explanations, and reflections, so students can capture all the key function features for each scenario. What I love about this template is that it’s already set up for students, so they can focus on the math instead of stressing over presentation formatting. It makes it easy for them to plug in their visuals, data, graphs, and explanations without getting stuck on design choices. This makes the learning experience interactive and engaging, while still keeping it structured and manageable.
Teacher-Ready Presentation & Example Project
For teachers, there’s a fully editable presentation to guide your students through the project. It includes clear instructions, links to research resources, and even a completed student example so you can model what a high-quality project looks like. This helps clarify expectations and ensures students understand the steps before diving in. Designed to introduce the project in a motivating way and spark student interest!
A completed student example is included, so you can model what a high-quality project looks like. This helps clarify expectations and ensures students understand the steps before diving in. I’ve intentionally left some questions without answers so students have to think critically and do their own analysis.
Interactive Peer Review: Function Fair Activity
One of my favorite parts of this project is the Function Fair peer review activity. Students share their projects with classmates and analyze each other’s work using a combination of fill-in-the-blank, short answer, and open-ended questions. The question bank is customizable, so teachers can select the prompts that best suit their students and learning goals. This activity not only encourages collaboration and discussion, but it also reinforces key function concepts in a meaningful way. An answer key is included to make sure all students reviewing the same project give consistent feedback, which keeps the peer review process organized and fair.
Comprehensive Answer Keys & Rubrics
To make grading easier, the project includes comprehensive answer keys and a fully editable rubric. Included is an answer key, with red text indicating exact answers and blue text providing flexible examples for different student data. A spreadsheet is also provided, so you can enter student information and automatically calculate results, saving a ton of time. The rubric is completely editable, allowing you to adjust expectations to fit your class or specific goals. These tools make it simple to review student work, provide meaningful feedback, and ensure clarity and consistency in assessment.
Watch the Project in Action
If you want a more in-depth look at the Functions in Action project, watch the video below. Watching the video makes it easy to see how the project flows from start to finish and how students engage with real data while staying focused on the math—not the formatting. Plus, it’s a great way to visualize how to introduce the project in your own classroom so your students can dive right in.
Why I Love This Project
The Functions in Action project gives students a real-world reason to explore functions, combining data collection, analysis, graphing, and reflection. Each student can personalize their work while practicing essential math skills in a meaningful context.
It’s hands-on, engaging, and perfect for differentiation! Students who need extra support or those who want a challenge can all succeed. And the interactive peer review is a classroom highlight that turns assessment into collaboration.
If you’re looking for a fun, creative, and meaningful way to teach functions, this project hits all the marks.
Click on the image below to check out the project:
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