Namibia Senior Secondary Certificate Ordinary Level (NSSCO) Mathematics Syllabus

This set of vocabulary flashcards covers key terminology, notations, and concepts defined in the Namibia Senior Secondary Certificate Ordinary Level (NSSCO) Mathematics syllabus for Grades 10-11.

NSSCO

Namibia Senior Secondary Certificate Ordinary Level.

NCBE

National Curriculum for Basic Education.

NEACB

National Examination, Assessment and Certification Board.

Natural Numbers

The set of positive counting numbers: $\{1, 2, 3, ...\}$.

Integers

The set of whole numbers including zero and negative values: $\{..., -2, -1, 0, 1, 2, ...\}$.

Rational Numbers

Numbers that can be expressed as a ratio of two integers.

Irrational Numbers

Numbers that cannot be expressed as simple fractions, which are called surds when they are roots (e.g., $\pi, \sqrt{2}$).

HCF

Highest Common Factor.

LCM

Lowest Common Multiple.

Standard Form

Expressing numbers in the form $A \times 10^n$ where $n$ is an integer and $1 \le A < 10$.

Union ($A \cup B$)

The set of all elements that are in set $A$ or in set $B$.

Intersection ($A \cap B$)

The set of elements which are common to both set $A$ and set $B$.

Complement ($A'$)

The set of all elements in the universal set that are not in set $A$.

Proper Subset ($A \subset B$)

A set $A$ that is contained in set $B$, but is not equal to $B$.

Locus

The path of a point following certain conditions in two dimensions.

NSCCAS

Namibia Senior Secondary Certificate Advanced Subsidiary level.

Arithmetic Sequence

A sequence of numbers where the difference between subsequent terms is constant.

Geometric Sequence

A sequence of numbers where each term after the first is found by multiplying the previous one by a fixed, non-zero number.

Inverse Function ($f^{-1}$)

A function that reverses the mapping of a one-one function $f$.

Composite Function ($gf$)

A function defined by $gf(x) = g(f(x))$.

Vector Magnitude

The length of a vector $\begin{pmatrix} x \\ y \end{pmatrix}$, calculated as $\sqrt{x^2 + y^2}$.

Non-singular Matrix

A $2 \times 2$ square matrix that has a determinant and an inverse.

Three-figure Bearings

Directions measured clockwise from the North expressed in three digits ($000^\circ$ to $360^\circ$).

Frequency Density

The vertical axis label for histograms with unequal intervals, where area is proportional to frequency.

Congruence ($\equiv$)

The relationship between geometric figures that are identical in shape and size.

Upper and Lower Bounds

The specified limits of accuracy for measured data or estimated values.

Identity Matrix

A square matrix with ones on the main diagonal and zeros elsewhere.