Glossary: Terms Starting with A

a.m.

MathsFrom Grade 3

From midnight to noon.

Learn it in: Reading digital clocks (Grade 3)

a.m./p.m.

MathsFrom Grade 4

Morning/afternoon.

Learn it in: Time intervals (Grade 4), Time and money applications (Grade 5)

AB pattern

MathsFrom Grade 1

A pattern with two parts that repeat: A, B, A, B.

Learn it in: Colour patterns (Grade 1)

absolute value

MathsFrom Grade 6

Distance from zero.

Learn it in: Positive and negative numbers (Grade 6)

acute

MathsFrom Grade 6

Less than 90°.

Learn it in: Angles (Grade 6)

acute angle

MathsFrom Grade 3

Smaller than a right angle.

Learn it in: Introduction to other angles (Grade 3)

add

MathsFrom Grade 1

Put groups together to find the total.

Learn it in: Meaning of addition (Grade 1), Area of composite rectangular figures (Grade 4)

addend

MathsFrom Grade 3

A number being added.

Learn it in: Reviewing multidigit addition (Grade 3), Large-number addition (Grade 4), Adding decimals (Grade 5)

after

MathsFrom Grade 1

Comes later in counting. 6 is after 5.

Learn it in: Ordering numbers (Grade 1)

afternoon

MathsFrom Grade 1

The part after midday.

Learn it in: Morning, afternoon and evening (Grade 1)

algorithm

MathsFrom Grade 5

A step-by-step method.

Learn it in: Multidigit multiplication (Grade 5)

align

MathsFrom Grade 6

Line up.

Learn it in: Decimal addition (Grade 6), Decimal subtraction (Grade 6)

altogether

MathsFrom Grade 1

How many in all.

Learn it in: Meaning of addition (Grade 1), Counting categories (Grade 1), Two-step word problems (Grade 2)

analogue clock

MathsFrom Grade 3

A clock with hands and numbers 1 to 12.

Learn it in: Reading analogue clocks (Grade 3)

angle

MathsFrom Grade 3

Where two lines meet.

Full explanation with examples and practice →

Learn it in: Right angles (Grade 3), Angles (Grade 4), Two-dimensional figures (Grade 5)

angle sum

MathsFrom Grade 5

Total of the interior angles.

Learn it in: Properties of polygons (Grade 5), Triangles (Grade 6)

approximately

MathsFrom Grade 3

About.

Learn it in: Estimating answers (Grade 3), Estimation (Grade 3), Estimation (Grade 4)

area

MathsFrom Grade 3

The amount of flat surface a shape covers.

Full explanation with examples and practice →

Learn it in: Understanding area (Grade 3), Area of rectangles (Grade 4), Area (Grade 5)

area model

MathsFrom Grade 4

A box showing parts.

Learn it in: Two-digit multiplication (Grade 4)

arm

MathsFrom Grade 4

One of the rays.

Learn it in: Angles (Grade 4)

array

MathsFrom Grade 2

Objects in rows and columns.

Learn it in: Arrays (Grade 2), Multiplication arrays (Grade 3), Division using arrays (Grade 3)

arrow

MathsFrom Grade 4

Shows the line continues.

Learn it in: Lines (Grade 4), Rays (Grade 4)

ascending

MathsFrom Grade 1

From smallest to greatest.

Learn it in: Ordering numbers (Grade 1), Ordering numbers (Grade 2), Ordering numbers (Grade 3)

associative

MathsFrom Grade 4

Grouping does not change the product.

Learn it in: Multiplication properties (Grade 4)

average

MathsFrom Grade 4

The total shared equally.

Learn it in: Solving data problems (Grade 4), Mean (Grade 6)

average of two

MathsFrom Grade 6

Add and halve.

Learn it in: Median (Grade 6)

axis

MathsFrom Grade 3

The line with labels.

Learn it in: Scaled bar graphs (Grade 3), Bar graphs (Grade 4), Bar graphs (Grade 5)