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Strand · Math · Probability

Combined Events

Combined Events is a curriculum strand within Probability — a thread that runs across grades and deepens each year.

Entity profile

Every node stores the same attribute set, which is why the hierarchy can grow without new templates.

Entity type

Strand

Depth 2 in the graph

Graph ID

math/probability/combined-events

Grades
Grade 3Grade 4Grade 5
Beneath this node

8,944

48 topics · 1,440 concepts · 7,200 micro-concepts

Units

Every unit below is a full entity with its own skills, objectives, misconceptions and resource set.

Skills and learning objectives

Skills hang off the entity; objectives hang off the skill; activities and assessment hang off the objective.

Explain combined events

Understand
  • Explain combined events accurately in a familiar context.

    Activities — Modelled example on the board · Paired talk task · Mini whiteboard check

    Assessment — Exit ticket of four short items

  • Explain combined events independently in an unfamiliar context.

    Activities — Independent worksheet · Card sort · Concept-check quiz

    Assessment — Marked worksheet with a marking scheme

  • Explain the reasoning behind combined events using correct vocabulary.

    Activities — Talk-through with a partner · Write a model answer · AI Tutor Socratic session

    Assessment — Extended written response, levelled

Calculate combined events

Apply
  • Calculate combined events accurately in a familiar context.

    Activities — Modelled example on the board · Paired talk task · Mini whiteboard check

    Assessment — Exit ticket of four short items

  • Calculate combined events independently in an unfamiliar context.

    Activities — Independent worksheet · Card sort · Concept-check quiz

    Assessment — Marked worksheet with a marking scheme

Compare combined events

Analyse
  • Compare combined events accurately in a familiar context.

    Activities — Modelled example on the board · Paired talk task · Mini whiteboard check

    Assessment — Exit ticket of four short items

  • Compare combined events independently in an unfamiliar context.

    Activities — Independent worksheet · Card sort · Concept-check quiz

    Assessment — Marked worksheet with a marking scheme

  • Explain the reasoning behind combined events using correct vocabulary.

    Activities — Talk-through with a partner · Write a model answer · AI Tutor Socratic session

    Assessment — Extended written response, levelled

Justify combined events

Evaluate
  • Justify combined events accurately in a familiar context.

    Activities — Modelled example on the board · Paired talk task · Mini whiteboard check

    Assessment — Exit ticket of four short items

  • Justify combined events independently in an unfamiliar context.

    Activities — Independent worksheet · Card sort · Concept-check quiz

    Assessment — Marked worksheet with a marking scheme

Semantic relationships

Prerequisite and related edges are what make this a graph rather than a menu.

Misconceptions

Stored on the entity so worksheets, quizzes and lesson plans all target the same known errors.

Misconception

Learners over-generalise a special case of combined events to every situation.

Correction — Present a deliberate non-example and ask why the rule fails.

Misconception

Students treat combined events as a rule to memorise rather than a relationship to understand.

Correction — Anchor the rule in a visual model first, then abstract it — the model is the explanation.

Curriculum alignment

Curricula, boards and countries are data — adding one never changes the architecture.

fbise

FBI-138.1

Mapped statement covering Combined Events.

common-core

COM-634.2

Mapped statement covering Combined Events.

What comes next

Curriculum order is an edge in the graph, so every entity knows the step that follows it.

Difficulty ladder

The same entity, six levels of demand — easy through to olympiad and exam level.

Learning intent

Not every visitor wants the same thing. Each intent routes to the resource that actually does that job.

Audience views

Combined Events in Grade 3, surfaced differently for each reader.

AI Tutor context chain

Open the tutor from here and it already knows where you are — this is the sequence it recommends.

Free Combined Events resources

Every format below is a free, standalone page generated from this entity — 53 of them, all interlinked.

Connected resources

30 resource types are generated for Combined Events automatically — the graph never produces an entity without them.

Frequently asked

What sits underneath Combined Events in the knowledge graph?
0 domains, 0 strands, 4 units, 12 chapters, 48 topics, 240 subtopics, 1,440 concepts and 7,200 micro-concepts — every one of them carrying its own worksheets, quizzes, flashcards, lesson plans and AI tutoring.
What should a learner already know before Combined Events?
The graph lists Basic Probability, Statistics as prerequisites. Each links to its own practice so a gap can be closed before moving on.
Which grades is Combined Events taught in?
Typically Grade 3, Grade 4, Grade 5, though every resource can be regenerated for any grade in the platform.

Related resources

Tutoring

Work through Combined Events one-to-one with a tutor who can see exactly where the gap is.

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