Sri Lanka G.C.E. Ordinary Level (O/L) Mathematics

Sri Lanka G.C.E. Ordinary Level (O/L) Mathematics

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Subject Content: Key Mathematical Themes

The syllabus develops a comprehensive foundation in mathematical concepts and their practical applications, building from Grade 10 to 11.

1. Numbers and Commercial Math

Covers **Real Numbers**, ratio, proportion, **simple/compound interest**, **Exponents and Logarithms**, profits, shares, and **Taxes** (Income Tax, VAT).

2. Algebra and Graphs

Includes **manipulation of expressions**, fractions, **solving equations** (simple, simultaneous, quadratic), **inequalities**, functions, and **Matrix operations**.

3. Geometry and Mensuration

Focuses on **Area and Volume** of plane figures/solids, properties of **angles and circles**, **Pythagoras’ theorem**, **trigonometric ratios**, **constructions**, **symmetry**, and **loci**.

4. Statistics and Probability

Covers **data representation** (diagrams), **frequency distribution** (grouped/ungrouped), **Sets** (notation, Venn diagrams), and **Probability** (likelihood of an event).

Skill Development Focus

The course aims to develop problem-solving, logical thinking, and communication skills for everyday applications.

Problem-Solving and Logical Thinking

Translating real-life challenges into mathematical terms and using logical deduction to find solutions.

Application and Communication

Applying mathematical knowledge accurately to everyday life and communicating mathematical ideas clearly.

Assessment Structure

The assessment consists of two compulsory written papers, each contributing 50% to the final result.

Paper I

  • **Duration:** 2 hours
  • **Format:** Structured and short-answer questions.
  • **Content Focus:** Essential Learning Concepts (ELCs) covering the core syllabus.
Paper II

  • **Duration:** 2.5 hours
  • **Format:** Structured essay-type questions.
  • **Content Focus:** Covers the entire syllabus, designed for students with higher mathematical aptitude.

 

This structure is based on the Sri Lanka G.C.E. Ordinary Level Mathematics syllabus.

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