Unit 9 · Culminating Projects
Two-Variable Relationships in Action
Two project versions that pull together everything from Unit 9 — identifying independent and dependent variables, writing equations in the form y = kx, building tables of values, and reading graphs. Pick one, or run them as differentiated options. Each is self-guided, interactive, and printable.
Choose Your Version
Two Ways to Show Mastery
📈 Streaming Channel Growth Lab
Design a channel you would run: research a weekly growth rate k, name the independent and dependent variables, write y = kx (or y = kx + b at Level 2), build a table of values, and read a live SVG graph. Interview a classmate to compare whose line is steeper, then see which real-world creator tier your rate lands in. With EN/ES, Level 1/2, read-aloud, save/load, and report export.
Version B · Real-World Investigation📱 Phone Plan Showdown
Model a phone plan as C = (cost per GB) × g + a flat monthly fee: name the independent and dependent variables, write the equation, build a cost table (0–10 GB), and graph it. Interview a classmate, graph both plans on one grid, and find the break-even point where the two plans cost the same. See how a flat fee makes the relationship non-proportional. With EN/ES, Level 1/2, read-aloud, save/load, and report export.
Students Start Here
Pick Your Path
Same math, same rubric. Both versions practice the exact same skills and are graded the same way — choose the story that sounds more fun to you.
Take your time. Plan for two to three class periods. Your work saves automatically, so you can stop and come back.
Stuck on writing? Every response box has a “Need a starter?” helper, and the last step includes a Rate My Work check before you turn it in.
For the Teacher
How to Use These Projects
Standards: 6.AT.11 — use variables to represent two quantities in a real-world problem that change in relationship to one another; write an equation to express one quantity (dependent variable) in terms of the other quantity (independent variable). Analyze the relationship using graphs and tables.
Both versions are parallel. They assess the same skills through different contexts, so you can assign Version A and Version B to different students and grade on the same rubric (built into each project). Great for choice boards, make-up work, or A/B class sections.
Built in: a Self → Peer → World arc, Visual Math Notes vocab with an EN/ES toggle and read-aloud, Level 1 / Level 2 differentiation, live oninput calculators, a classmate-interview compare, progress bar, hints, a built-in rubric, save/load, report copy/download (.txt) plus a JSON backup, and print. Both versions include a dynamically generated SVG line graph (Version A shows a growth-tier callout; Version B graphs both plans on one grid and finds the break-even point).
Answer key: Open the teacher answer key for both versions.