Blog
Study tips, revision guides, and infographic breakdowns for Junior Cycle maths.
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Volume of Prisms — How to Find the Volume of ANY Prism
Learn the one formula that works for every prism — from triangular to T-shaped. Includes worked examples, common mistakes, and a practice problem for Junior Cycle maths.
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Limitations of Statistics — Sources of Errors & Bias
Understanding the four main sources of error and bias in statistics: mistyped data, mistaken answers, incorrect measurements, and biased sampling.
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Formulas NOT in the Log Tables — What You Need to Memorise
A complete guide to the Junior Cycle maths formulas that won't appear in your log tables — from the difference of two squares to congruent triangle conditions.
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Coordinate Geometry — A Problem-Solving Guide for Junior Cycle Maths
Master slopes, parallel and perpendicular lines, intercepts, intersections, and how to draw lines from equations — with worked examples and common mistakes.
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Circle Theorems — Angles, Arcs & Chords for Junior Cycle Maths
A clear guide to circle theorem corollaries: cyclic quadrilaterals, angles on the same arc, the semicircle rule, and the diameter-chord relationship.
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Junior Cycle Maths Theorems Part 1 — Theorems 1 to 9 Explained
A clear guide to Junior Cycle Maths Theorems 1 to 9, including vertically opposite angles, isosceles triangles, parallel lines, and parallelograms.
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Junior Cycle Maths Theorems Part 2 — Theorems 10 to 19 Explained
A clear guide to Junior Cycle Maths Theorems 10 to 19, including parallelogram diagonals, similar triangles, Pythagoras, and the circle theorem.
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Understanding Income Tax — Junior Cycle Maths Applied Arithmetic
A step-by-step guide to income tax calculations: gross income, tax bands, tax credits, PRSI, USC, and net pay — with a full worked example.
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Set Notation — A Visual Guide for Junior Cycle Maths
Understand union, intersection, complement, and difference with Venn diagrams and worked examples.
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Mastering Graphs — Why Context is Everything in Junior Cycle Maths
A 3-step strategy for reading graphs — how to decode axis labels, units, and patterns to understand the real-world story behind the data.
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Statistics & Probability Definitions — Key Terms for Junior Cycle Maths
A complete glossary of statistics and probability terms — mean, median, mode, outcomes, events, relative frequency, expected probability, and bias.
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Statistics Graphs — The Ultimate Cheat Sheet for Junior Cycle Maths
Know which graph to use and when — bar charts, histograms, pie charts, line graphs, and stem & leaf plots explained with examples and common mistakes.
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Number & Algebra Definitions — Key Concepts for Junior Cycle Maths
A complete guide to number types, properties, and algebra basics — natural numbers, integers, rationals, irrationals, factors, multiples, primes, expressions, equations, and variables.
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How to Factorise Quadratics — Junior Cycle Maths
A clear, step-by-step guide to factorising quadratic expressions for Junior Cycle maths students.