

A worksheet on direct and inverse proportion. The exercises require to:
- Examine whether the amounts given in tables of values are directly proportional, inversely proportional or neither.
- Fill in the missing entries in tables of values so that the amounts in the tables are directly proportional or inversely proportional
- Find the coefficient of proportionality of two directly proportional quantities given their table of values, write the equation connecting the two quantities and sketch its graph
Detailed solutions are provided.
Are your secondary maths students struggling to tell the difference between direct and inverse proportion when looking at data? This comprehensive, zero-prep practice worksheet packet is the perfect resource to help your students master identifying, completing, and plotting proportional relationships from data tables!
This packet provides clear, highly structured practice that moves students smoothly from simple ratio calculations to plotting functions on a coordinate grid.
What is Included?
- Identifying Proportion Types: Exercises that challenge students to analyze data tables to decide if a relationship is direct, inverse, or neither.
- Finding the Constant of Proportionality: Dedicated questions that require students to calculate fixed ratios or products to find the exact constant of proportionality (k).
- Constructing Algebraic Equations: Clear practice where students turn their data patterns into formal equations connecting their x and y variables.
- Completing Missing Data Tables: Missing-value grid puzzles that require students to use their knowledge of fixed ratios or inverse products to calculate missing numbers.
- Plotting Straight-Line Graphs: Dedicated graphing practice where students take their proportional equations and plot the corresponding straight-line graphs onto coordinate grids.
- Fully Worked Solutions Manual: A complete, step-by-step answers guide showing every single fraction check, product calculation, finished table, and perfectly drawn line graph for effortless marking, peer assessment, or self-checking!
Perfect For:
- Independent Classroom Practice
- Homework Assignments
- GCSE Revision and Exam Prep
- Cover Lessons / Supply Teaching (Zero Prep Needed!)
- Small Group Intervention or Foundation-Tier Support
Curriculum Alignment:
- Key Stage 3 (KS3) Maths: Core proportional reasoning, constants, and graphs practice for students in Years 7, 8, and 9.
- Key Stage 4 (KS4) / GCSE Maths: Perfect core practice for both Foundation and Higher tier students covering the Ratios, Proportion, and Rates of Change curriculum strands.
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