Lower Secondary
Core mathematics for junior secondary learners, including algebra, geometry, and statistics.
Lessons (11)
Ratios, Proportions and Rates
From bubble tea mixtures to MTR speeds — simplify ratios, share amounts by the parts method, master the unitary method, and handle rates, exchange rates, map scales and inverse proportion. Foundation lesson for Pre-IGCSE / Lower Secondary.
Factorising Quickly: Speed Up Your Algebra
Learn to factorise algebraic expressions quickly by spotting the Highest Common Factor (HCF). Master simple techniques for numbers and variables.
Fixing 5 Common Algebra Mistakes
Master algebra by correcting the 5 most common mistakes students make with variables, negatives, and powers. Learn to solve equations correctly.
The Minus Sign: 5 Classic Mistakes
Master the tricky minus sign in algebra by learning how to avoid common errors with brackets, substitution, and expanding expressions.
Like Terms vs. Unlike Terms: Simplifying Algebra
Learn the difference between like and unlike terms in algebra. Master how to identify, group, and simplify algebraic expressions easily.
Mean, Median, Mode, and Range
Learn how to calculate the mean, median, mode, and range with simple examples. Master these essential statistics concepts for analyzing data sets.
Patterns and Sequences: Mastering the Nth Term
Learn to identify arithmetic and geometric sequences, find the term-to-term rule, and master the position-to-term formula (nth term) in this math lesson.
Converting Fractions, Decimals, and Percentages
Learn how to convert between fractions, decimals, and percentages with easy steps and examples to master these essential math skills.
Intro to Algebra: Expressions, Equations & Inequalities
Learn the building blocks of algebra! This lesson explains expressions, equations, and inequalities with easy-to-follow examples and practice problems.
Divisibility Rules: 1 to 13 Guide
Learn the simple tricks to check if a number is divisible by any number from 1 to 13 without a calculator. Master divisibility rules today!
Mastering Fraction Operations
Learn how to add, subtract, multiply, and divide fractions step by step with clear examples, tips for simplifying, and mixed number strategies.
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