Glossary: Terms Starting with R
142 definitions with links to the lessons that teach each word.
r-controlled vowel
English
a vowel changed by the letter r
Learn it in: Advanced phonics review (Grade 3)
range
Maths
Greatest minus least.
Learn it in: Line plots (Grade 4), Comparing datasets (Grade 4), Frequency tables (Grade 5)
rate
Maths
Ratio with different units.
Learn it in: Unit rates (Grade 6), Mathematical modelling (Grade 6)
ratio
Maths
Comparison of two quantities.
Learn it in: Understanding ratios (Grade 6), Ratio word problems (Grade 6)
ray
Maths
Starts at one point and goes on forever.
Learn it in: Rays (Grade 4), Points and lines (Grade 6)
react
Science
to do something when something happens
Learn it in: Characteristics of living things (Grade 1)
readiness
English
being prepared for what comes next
Learn it in: Final Grade 6 literacy assessment (Grade 6)
reading log
English
a record of what you read
Learn it in: Independent reading routines (Grade 2), Longer literary texts (Grade 5), Extended literary texts (Grade 6)
reason
English
why you think something
Learn it in: Making predictions (Grade 1), Story characters (Grade 1), Expressing opinions (Grade 2)
reason
Science
what we say to explain why
Learn it in: Living and non-living things (Grade 1), Making simple predictions (Grade 2)
reasonable
Maths
Makes sense.
Learn it in: Estimation (Grade 3), Estimation (Grade 4), Checking reasonableness (Grade 4)
reasoning
English
the thinking that links evidence to a conclusion
Learn it in: Evidence-based conclusions (Grade 5)
rebuttal
English
your answer to a counterargument
Learn it in: Logical reasoning (Grade 4), Opinion and persuasive writing (Grade 5), Introductory debates (Grade 6)
record
Science
to keep what we find out by drawing or writing
Learn it in: Recording observations using pictures (Grade 1), What is weather (Grade 1), Recording observations (Grade 2)
rectangle
Maths
A shape with 4 straight sides and 4 square corners.
Learn it in: Rectangles (Grade 1), Perimeter (Grade 4)
recycle
Science
to make something new from old materials
Learn it in: Plastic (Grade 1), Proper waste disposal (Grade 1)
redundancy
English
repeating the same idea unnecessarily
Learn it in: Editing for clarity and style (Grade 6)
reference list
English
a list of sources used
Learn it in: Avoiding plagiarism (Grade 5), Introductory citations (Grade 6)
reflect
English
to think back on what happened
Learn it in: Story endings (Grade 3), Publishing compositions (Grade 5)
reflect
Science
to bounce light back
Learn it in: Light and darkness (Grade 1), Keeping our school clean (Grade 1)
reflection
English
careful thinking about meaning and feeling
Learn it in: Literary responses (Grade 5), Reflective communication (Grade 6), Publishing original narratives (Grade 6)
reflection
Maths
A mirror image.
Learn it in: Symmetry (Grade 3), Symmetry (Grade 4), Plotting points in four quadrants (Grade 6)
register
English
the level of formality of language
Learn it in: Formal and informal communication (Grade 5), Adapting language to audiences (Grade 6), Formal presentations (Grade 6)
regroup
Maths
Exchange 10 of one place for 1 of the next.
Learn it in: Regrouping in addition (Grade 2), Regrouping in subtraction (Grade 2), Addition with regrouping (Grade 3)
regular polygon
Maths
All sides and angles equal.
Learn it in: Symmetry (Grade 4), Properties of polygons (Grade 5), Perimeter (Grade 5)
rehearse
English
to practise before a performance
Learn it in: Performance (Grade 4), Formal presentations (Grade 6)
relative clause
English
a clause beginning with who, which or that
Learn it in: Complex sentences (Grade 5), Complex sentences (Grade 6)
relevant
English
connected to the topic
Learn it in: Asking relevant questions (Grade 2), Supporting details (Grade 3), Organising findings (Grade 3)
reliable
English
can be trusted
Learn it in: Factual information (Grade 3), Finding information (Grade 3), Evaluating spoken information (Grade 4)
remain
Maths
What is left over.
Learn it in: Taking away objects (Grade 1), Finding how many remain (Grade 1)
remainder
Maths
What is left over after dividing.
Learn it in: Division with remainders (Grade 3), Division word problems (Grade 3), Division with remainders (Grade 4)
remaining
Maths
What is left.
Learn it in: Fraction word problems (Grade 4), Fraction word problems (Grade 5)
repeat
English
to say again
Learn it in: Following simple instructions (Grade 1), Listening to words and sentences (Grade 1), Repeated reading (Grade 1)
repeated addition
Maths
Adding the same number again and again.
Learn it in: Repeated addition (Grade 2), Multiplication as equal groups (Grade 3), Area of rectangles using arrays (Grade 3)
repeated subtraction
Maths
Subtract the divisor again and again.
Learn it in: Division strategies (Grade 4)
replace
English
put another in its place
Learn it in: Oral sound manipulation (Grade 1), Pronouns (Grade 2)
report
English
a text that gives facts about a topic
Learn it in: Short factual reports (Grade 2), Factual reports (Grade 3), Short reports (Grade 3)
represent
Maths
Show a number in a picture, a model or words.
Learn it in: Representing two-digit numbers (Grade 1)
reproduce
Science
to make new living things like itself
Learn it in: Mature plants (Grade 2), Life cycles (Grade 2)
reread
English
read again
Learn it in: Self-correction (Grade 2), Revising writing (Grade 2), Independent reading strategies (Grade 6)
research
English
finding out about something
Learn it in: Asking questions (Grade 1), Research questions (Grade 2), Research questions (Grade 3)
research plan
English
a step-by-step plan for a research project
Learn it in: Research planning (Grade 6)
research question
English
a question that guides your investigation
Learn it in: Research questions (Grade 4), Research questions (Grade 5), Research questions (Grade 6)
research report
English
a report based on information from sources
Learn it in: Research reports (Grade 4), Research reports (Grade 5), Research report writing (Grade 6)
research-based writing
English
writing that uses evidence from sources
Learn it in: Research-based writing (Grade 6)
resolution
English
how the problem is solved
Learn it in: Plot development (Grade 3), Plot structure (Grade 4), Conflict and resolution (Grade 4)
resolve
English
solve or settle
Learn it in: Story problems and solutions (Grade 2), Story endings (Grade 3)
resource
English
something that helps you learn, such as a book or website
Learn it in: Independent learning (Grade 6)
respectful disagreement
English
disagreeing politely with reasons
Learn it in: Collaborative discussions (Grade 5)
respond
English
answer or reply
Learn it in: Active listening (Grade 2), Respectful responses (Grade 3)
response
English
what you think and feel about a text
Learn it in: Responding to literature (Grade 2), Literary response (Grade 3), Literary responses (Grade 5)
restate
English
to say again in different words
Learn it in: Conclusions (Grade 3), Explaining opinions (Grade 4), Conclusions (Grade 4)
result
English
what follows from something
Learn it in: Cause and effect (Grade 3), Cause and effect (Grade 4)
result
Science
what we find out
Learn it in: Making simple predictions (Grade 2), Conditions affecting plant growth (Grade 2)
retell
English
tell again
Learn it in: Reading familiar stories (Grade 1), Retelling stories (Grade 1), Retelling stories (Grade 1)
retelling
English
telling a story again in your own words
Learn it in: Literary response projects (Grade 5)
review
English
look at again
Learn it in: Phonics review and assessment (Grade 1), Literary response projects (Grade 5), Final Grade 6 literacy assessment (Grade 6)
revise
English
make writing better
Learn it in: Revising simple sentences (Grade 1), Revising writing (Grade 2), Creative-writing projects (Grade 2)
revising
English
making big improvements to ideas, structure and language
Learn it in: Revision (Grade 6)
rhombus
Maths
4 equal sides.
Learn it in: Quadrilaterals (Grade 3), Quadrilaterals (Grade 5), Quadrilaterals (Grade 6)
rhyme
English
words that end with the same sound
Learn it in: Identifying rhyming words (Grade 1), Nursery rhymes (Grade 1), Word families (Grade 2)
rhythm
English
the beat of the words
Learn it in: Poems and rhythm (Grade 2), Rhythm and rhyme (Grade 3), Rhythm and imagery (Grade 4)
right angle
Maths
A square corner (90°).
Learn it in: Right angles (Grade 3), Introduction to other angles (Grade 3), Perpendicular lines (Grade 4)
right triangle
Maths
Has a 90° angle.
Learn it in: Classifying triangles (Grade 4), Triangles (Grade 5)
rising action
English
events that build the problem
Learn it in: Plot development (Grade 3), Plot development (Grade 5), Plot and narrative structure (Grade 6)
role
English
the part someone plays
Learn it in: Acting out stories (Grade 1), Collaborative projects (Grade 3), Collaborative inquiry (Grade 4)
root
English
the main part of a word
Learn it in: Word families (Grade 2), Base words and roots (Grade 3), Greek and Latin roots (Grade 4)
root
Science
the part of a plant that holds it in the soil and takes in water
Learn it in: Plants as living organisms (Grade 1), Roots (Grade 1), Reviewing plant parts (Grade 2)
rough
Science
not smooth
Learn it in: Functions of the senses (Grade 1), Rough and smooth materials (Grade 1)
round
Maths
Shaped like a ball or a ring.
Learn it in: Circles (Grade 1), Checking answers (Grade 2), Rounding to the nearest ten (Grade 3)
round down
Maths
Stay on the lower ten.
Learn it in: Rounding to the nearest ten (Grade 3), Rounding to the nearest hundred (Grade 3)
round up
Maths
Go to the next ten.
Learn it in: Rounding to the nearest ten (Grade 3), Rounding to the nearest hundred (Grade 3)
rounding place
Maths
The digit we round to.
Learn it in: Rounding (Grade 4), Rounding (Grade 5), Rounding decimals (Grade 5)
row
Maths
Things side by side, left to right.
Learn it in: Numbers to 100 (Grade 1), Picture graphs (Grade 1), Arrays (Grade 2)
rule
Maths
What happens each time.
Learn it in: Number patterns (Grade 1), Creating patterns (Grade 1), Classifying objects (Grade 1)
rule
Science
what we use to decide which group a thing goes in
Learn it in: Sorting and grouping objects (Grade 1), Science safety rules (Grade 1)
ruler
Maths
A tool marked with centimetres for measuring length.
Learn it in: Introduction to centimetres (Grade 1), Measuring length (Grade 2), Line segments (Grade 4)
run-on
English
sentences joined without punctuation
Learn it in: Complete sentences (Grade 2), Complex sentences (Grade 4)
run-on sentence
English
clauses joined without correct punctuation
Learn it in: Compound sentences (Grade 6)