Mathematics Secondary 4 CST:

Let’s dive into the world of functions! You’ll learn how to read, describe, and analyze different kinds of functions — identifying their domain, range, intercepts, signs, and variation. We’ll explore how each type of function behaves: from step and piecewise functions to periodic ones, and even exponential and quadratic forms that model change in the real world.

Equations aren’t just lines on paper — they’re tools to solve real problems. You’ll learn several methods for solving systems of two linear equations: comparison, substitution, and elimination. We’ll also explore practical contexts where systems appear, like intersections of costs, time, or distance.

Geometry becomes algebraic! You’ll study how lines relate — whether they’re parallel, perpendicular, or intersecting — and calculate distances and midpoints between points. You’ll also solve geometric problems using algebraic methods, learning to model and reason precisely.

Let’s build geometric intuition. You’ll study similar and congruent triangles, apply Thales’ theorem, and explore metric relations in right triangles. These concepts come together through geometric reasoning — where you’ll learn to explain why relationships work, not just apply them.

Angles and sides — connected by beautiful relationships. You’ll use trigonometric ratios to solve right triangles, apply the sine law to oblique triangles, and use area formulas including Heron’s and the trigonometric formula. These tools let you analyze real structures, from ramps to roofs to navigation problems.

Data tells stories — let’s learn to read them. You’ll study two-variable data, use scatter plots (nuages de points), and explore how variables relate. You’ll calculate the regression line using the median–median and Mayer methods to model trends and make predictions based on real data.