Interactive proportional relationships simulation. Students track a club fundraiser at a steady weekly rate, predict weeks to the goal, then see how a head-start donation breaks proportionality. Live graph, auto-graded, randomized values. Grades 7-8 review. CCSS 7.RP.A.2.
Fundraiser Goal Tracker - An Interactive Proportional Relationships Simulation
A short, self-grading activity built for a warm-up or the first week back. A club is raising money for a field trip at a steady weekly rate. Students build a table of totals, find the unit rate, and predict how many weeks it takes to reach the goal. Then a head-start donation lands, and they see why that one change breaks the proportional relationship, even though the money still comes in at the same steady pace.
Takes about 10 minutes, so it fits neatly as a bell-ringer, a review before a linear functions unit, or a back-to-school refresher. Answers check instantly, so you can spot who understands proportionality without grading by hand.
What students practice:
Why teachers use it:
Standards alignment:
Perfect for: warm-ups, bell-ringers, back to school, proportional relationships, unit rate, real-world math, and digital math centers.
Students analyze a proportional relationship in a real fundraising context and recognize what breaks that proportionality. Working from a steady weekly sales rate, they build a table of totals, identify the unit rate, and use it to predict how many weeks it takes to reach a goal. They then examine a second scenario where a head-start donation shifts the starting point, and reason about why the new relationship is no longer proportional. Anchored to 7.RP.A.2, with an informal visual bridge toward 8.F through the graph, no slope or intercept vocabulary required.
The worksheet supports randomization, if enabled, students will get different target amount, weekly rate, etc.
💡 Tip: When assigning this activity to your classroom, you can optionally enable randomization to give each student a unique version of the problems. When you re-assign the same worksheet, each student will get a new set of questions, helping them master the content through repeated practice.
Recognize and represent proportional relationships between quantities.
All 7.RP.A.2 activities →
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