

Master direct proportional relationships with this comprehensive, no-prep secondary math worksheet! This resource is perfectly designed to help your students build deep conceptual understanding, moving from basic table analysis to real-world word problems and graphing tasks.
Whether you are teaching KS3, KS4 (GCSE / iGCSE), Year 7-9, or foundational algebra classes, this structured worksheet offers a complete range of problem types to ensure true skill mastery.
What is Included in This Resource?
This package contains a highly detailed single worksheet along with a comprehensive, step-by-step worked answer key that shows students exactly how to set up ratios and solve for missing variables.
Part 1: Identifying Proportion in Tables
- Analyzing coordinate tables to check if variables are directly proportional.
- Calculating and verifying the constant of proportionality.
Part 2: Completing Proportional Tables - Filling in missing x and y values within directly proportional data sets.
Part 3: Equations & Graphing Practice - Finding the constant of proportionality from given data.
- Writing linear equations that connect variables.
- Sketching the linear function directly onto a provided graph grid system.
Part 4: Conceptual Identification - Analyzing real-world scenarios to determine if they represent direct or non-direct proportions (e.g., perimeter vs. area, number of workers vs. time).
Part 5: Multi-Step Word Problems - Solving real-world scenarios involving hourly wages, currency conversion (Dollars to Euros), mass and weight (grams and kilograms), storage capacity, speed/distance/time, and recipe scaling.
Part 6: Real-World Applications (Percentages & Functions) - Calculating original prices and sale prices using 30% store savings.
- Expressing selling prices as a direct function of the original price.
Why Teachers Love This Resource:
- Ready to Print & Go: No prep required! Simply print the worksheet and you are completely ready for a cover plan, classwork assignment, homework, or revision session.
- Step-by-Step Solutions Included: Save hours of marking time with a fully worked-out answer key that shows clear calculation steps. Students can also use it to self-assess.
- Clean Design with Visual Graph Grid: Includes a perfectly sized coordinate grid directly on the page, saving you from needing separate graph paper.
- Scaffolded Learning: Tasks naturally progress from simple arithmetic tracking to high-level algebraic functions and percentages.
Educational Standards Covered:
- UK National Curriculum / GCSE: Ratio, proportion and rates of change. Understand direct proportion relationships, calculate constants of proportionality, solve multi-step word problems involving percentages, convert metric units, and plot linear graphs of proportional functions.
- US Common Core Standards (for reference): 7.RP.A.2 (A/B/C/D), 7.RP.A.3, and 8.EE.B.5.
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