Glossary: Terms Starting with I
71 definitions with links to the lessons that teach each word.
identity
Maths
Multiplying by 1 leaves the number unchanged.
Learn it in: Multiplication properties (Grade 3), Multiplication properties (Grade 4)
idiom
English
a phrase whose meaning is different from its words
Learn it in: Figurative expressions (Grade 3), Figurative expressions (Grade 4), Figurative language (Grade 5)
illustration
English
a picture in a book
Learn it in: Picture books (Grade 1), Captions and illustrations (Grade 2), Publishing creative writing (Grade 4)
image
English
a picture or photograph
Learn it in: Describing images (Grade 2), Similes and metaphors (Grade 4)
imagery
English
words that make pictures in the mind
Learn it in: Literary language (Grade 3), Poetry (Grade 3), Rhythm and imagery (Grade 4)
important
English
matters a lot
Learn it in: Identifying important details (Grade 1), Summarising short texts (Grade 2)
important detail
English
a fact you need to understand the message
Learn it in: Identifying important details (Grade 3)
improper fraction
Maths
Numerator at least the denominator.
Learn it in: Mixed numbers (Grade 4), Fractions greater than one (Grade 4), Mixed numbers (Grade 5)
improve
English
get better
Learn it in: Repeated reading (Grade 1), Revising simple sentences (Grade 1), Repeated reading (Grade 2)
in contrast
English
a transition showing difference
Learn it in: Compare-and-contrast writing (Grade 6)
in words
Maths
Written with letters.
Learn it in: Numbers to 1,000 (Grade 2), Numbers to 10,000 (Grade 3)
indent
English
start a little to the right
Learn it in: Topic sentences (Grade 2), Paragraph organisation (Grade 3)
independent clause
English
a clause that can stand alone
Learn it in: Compound sentences (Grade 3), Subordinating conjunctions (Grade 4), Independent and dependent clauses (Grade 6)
independent learning
English
taking responsibility for your own learning
Learn it in: Independent learning (Grade 6)
index
English
an alphabetical list at the back
Learn it in: Tables of contents (Grade 2), Text features (Grade 3), Locating information (Grade 4)
indirect characterisation
English
revealing traits through actions and words
Learn it in: Characterisation (Grade 6)
infer
English
work out something not directly stated
Learn it in: Simple inferences (Grade 2), Making inferences (Grade 3), Literary interpretation (Grade 4)
inference
English
a conclusion from clues
Learn it in: Simple inferences (Grade 2), Monitoring comprehension (Grade 4), Textual evidence (Grade 5)
inform
English
to give facts
Learn it in: Author’s purpose (Grade 4), Author’s purpose (Grade 5), Author’s purpose (Grade 6)
informal
English
relaxed language for friends and family
Learn it in: Formal and informal communication (Grade 5)
informative essay
English
an essay that explains facts about a topic
Learn it in: Informative essays (Grade 5)
input
Maths
What goes in.
Learn it in: Rules and relationships (Grade 5), Number relationships (Grade 6)
instruction
English
words that tell you what to do
Learn it in: Following simple instructions (Grade 1), Following multistep instructions (Grade 2), Identifying important details (Grade 3)
integer
Maths
Whole number, positive, negative or zero.
Learn it in: Introduction to integers (Grade 6), Secondary mathematics readiness (Grade 6)
integrate
English
to blend evidence smoothly into your writing
Learn it in: Supporting evidence (Grade 6)
interior angle
Maths
An angle inside a polygon.
Learn it in: Properties of polygons (Grade 5), Polygons (Grade 6)
internal conflict
English
a struggle inside a character
Learn it in: Conflict and resolution (Grade 5), Conflict (Grade 6)
interpret
English
to explain the meaning of something
Learn it in: Literary interpretation (Grade 4), Character interpretation (Grade 4), Academic vocabulary (Grade 5)
interpret
Maths
Explain what data shows.
Learn it in: Reading and interpreting graphs (Grade 3), Division word problems (Grade 4), Interpreting graphs (Grade 4)
interpretation
English
your explanation of a text’s deeper meaning
Learn it in: Literary interpretation (Grade 4), Evidence-based literary interpretation (Grade 6), Poetry interpretation (Grade 6)
interval
Maths
The space between marks.
Learn it in: Fractions on number lines (Grade 3), Time intervals (Grade 4), Bar graphs (Grade 5)
introduce
English
to tell someone who you are
Learn it in: Introducing oneself (Grade 1), Story beginnings (Grade 3)
introduce evidence
English
lead into a fact or quote with a phrase
Learn it in: Supporting evidence (Grade 5)
introduction
English
the start that tells the topic
Learn it in: Short presentations (Grade 2), Short factual reports (Grade 2), Factual reports (Grade 3)
inverse
Maths
The opposite operation.
Learn it in: Subtraction within 100 (Grade 2), Checking answers (Grade 2), Relationship between multiplication and division (Grade 2)
inverse operation
Maths
Opposite.
Learn it in: Unknown quantities (Grade 5), Solving one-step equations (Grade 6)
investigable
Science
able to be answered by a test or observation
Learn it in: Asking investigable questions (Grade 2)
investigate
Science
to find out by looking and trying
Learn it in: Asking scientific questions (Grade 1)
investigation
Science
a way of finding out an answer by looking carefully
Learn it in: What plants need to grow (Grade 1)
irregular
English
not following the usual pattern
Learn it in: Common irregular words (Grade 2), Singular and plural nouns (Grade 2)
irregular plural
English
a plural that does not follow the usual rule
Learn it in: Spelling conventions (Grade 3)
irregular verb
English
forms the past in a different way
Learn it in: Verbs and tense (Grade 3), Verb forms (Grade 5)
irregular word
English
a word that does not follow the usual sound rules
Learn it in: Common irregular words (Grade 1)
isosceles
Maths
Two sides equal.
Learn it in: Triangles (Grade 3), Classifying triangles (Grade 4), Triangles (Grade 5)