Mathematics
Structured topics, video tutorials, worked examples, and mastery quizzes for JHS 1.
JHS 1 Curriculum Topics (15)
Every topic contains video lessons & quizzesSets and Operations on Sets
Master set notation, types of sets, union, intersection, and two-set Venn diagrams.
Real Number System and Place Value
Understand the hierarchy of real numbers, place values up to billions, and prime factorization.
Integers and Operations on Integers
Directed numbers on the number line, addition, subtraction, multiplication, and sign rules.
Number Bases and Binary System (Base 2)
Place values in base two, conversion between base ten and base two, and binary arithmetic.
Fractions, Decimals and Percentages
Proper, improper, mixed fractions, operations using LCM, BODMAS, and percentage conversions.
Algebraic Expressions and Substitution
Terms, coefficients, collecting like terms, expanding single brackets, and numerical substitution.
Linear Equations in One Variable
Solve first-degree equations, equations with brackets, clearing fractions, and word problems.
Ratio, Proportion and Sharing
Simplifying ratios, dividing quantities in given ratios, direct proportion, and inverse proportion.
Lines and Angles
Classify angles, complementary, supplementary, vertically opposite, and parallel lines with transversals.
Plane Shapes and Polygons
Properties of triangles, quadrilaterals, exterior angle theorem, and polygon interior angle sum formula.
Geometric Construction
Use ruler and compass to construct perpendicular bisectors, angle bisectors, 60°, 90°, 45°, 30°, and triangles.
Perimeter and Area of Plane Figures
Calculate boundary perimeter and flat area of rectangles, squares, triangles, parallelograms, and circles.
Data Collection and Frequency Tables
Tally charts, frequency distribution tables, vertical/horizontal bar charts, and pie chart sector angles.
Measures of Central Tendency (Mean, Median, Mode)
Calculate and interpret the Mode, Median, Mean, and Range from raw lists and frequency distribution tables.
Introduction to Probability
The probability scale from 0 to 1, sample spaces, theoretical probability, coins, dice, and cards.