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Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

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Knowledge-graph map

Pick a subject above to see its knowledge-graph map.

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Foundational concepts with no prerequisites — the natural entry points into the graph.

  • One-to-one counting

    Mathematics · Counting & Cardinality · unlocks 3 concepts

    One-to-one correspondence when counting objects: each object is paired with exactly one number name

  • Sitting and holding a pencil

    English · Handwriting & Transcription · unlocks 3 concepts

    Sit correctly at a table holding a pencil comfortably and correctly; form lower-case letters in the correct direction starting and finishing in the right place

  • Listening and responding

    English · Speaking & Listening · unlocks 2 concepts

    Listen and respond appropriately to adults and peers; follow agreed-upon rules for discussion such as listening to others and taking turns speaking

  • Comparing groups: more or fewer

    Mathematics · Counting & Cardinality

    Compare two groups of objects to determine which has more, fewer, or whether they are equal, using matching and counting strategies

  • Measurable Attributes of Objects

    Mathematics · Measurement · unlocks 3 concepts

    Describe and identify measurable attributes of objects such as length, height, weight, and capacity; use comparative language (longer, shorter, heavier, lighter, more, less)

  • Building sentences

    English · Grammar & Punctuation · unlocks 8 concepts

    Understand that words combine to make sentences — a sentence expresses a complete thought; produce and expand complete sentences in speech and writing

  • Understanding print

    English · Phonics & Word Reading · unlocks 2 concepts

    Demonstrate understanding that print carries meaning, follows left-to-right top-to-bottom directionality, and is organised page by page in books

  • 3-D shapes

    Mathematics · Geometry · unlocks 5 concepts

    Recognise and name common 3-D shapes (cubes, cuboids, pyramids, spheres, cylinders, cones)

  • Ordering Events in Time

    Mathematics · Measurement · unlocks 1 concept

    Sequence events in chronological order using language such as before, after, next, first, today, yesterday, tomorrow, morning, afternoon, evening

  • Exploring Ideas Through Talk

    English · Speaking & Listening

    Use spoken language to develop understanding through speculating, hypothesising, imagining, and exploring ideas; use strategies to build vocabulary through talk

  • 2-D shapes

    Mathematics · Geometry · unlocks 7 concepts

    Recognise and name common 2-D shapes (circles, triangles, rectangles including squares)

  • Onsets & Rimes

    English · Phonics & Word Reading · unlocks 2 concepts

    Blend and segment onsets and rimes in single-syllable words; isolate and pronounce individual phonemes (initial, medial, final) in CVC words; add or substitute phonemes to make new words