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The Meridians

MATH 0–90 and ELA 0–90, aligned to the Common Core progressions — each course named for the level at which it sits, each visibly a fraction of the distance to the collegiate 100 level.

The Mathematics Meridian

Mathematics is the model's natural proving ground: its concepts are cumulative, its prerequisites unforgiving. What the renumbering adds is proportion: MATH 14 is not “second-grade math” — a phrase that invites condescension — but fourteen percent of the road to college mathematics, traveled in a single year.

MATH 0Kindergarten · Level 0

Where the entire sequence stands.

  • ·Counting and cardinality
  • ·Numbers to 100
  • ·Basic addition and subtraction concepts
  • ·Shapes and spatial reasoning
  • + 2 more

5 units · 37 practice items →

MATH 1Grade 1 · Level 1

The long climb to KS-10 begins.

  • ·Addition and subtraction within 20
  • ·Place value to 100
  • ·Basic measurement
  • ·Time and money introduction
  • + 2 more

6 units · 46 practice items →

MATH 14Grade 2 · Level 14

The largest single-year gain on the scale.

  • ·Addition and subtraction within 1000
  • ·Place value to 1000
  • ·Foundations of multiplication
  • ·Length measurement
  • + 2 more

6 units · 49 practice items →

MATH 27Grade 3 · Level 27

The year of facts.

  • ·Multiplication and division facts
  • ·Fractions as numbers
  • ·Area and perimeter
  • ·Multi-step word problems
  • + 1 more

6 units · 42 practice items →

MATH 39Grade 4 · Level 39

Algorithms as application.

  • ·Multi-digit multiplication
  • ·Long division foundations
  • ·Fraction equivalence
  • ·Decimal notation
  • + 2 more

6 units · 42 practice items →

MATH 50Grade 5 · Level 50

The halfway meridian.

  • ·Operations with fractions
  • ·Decimals to thousandths
  • ·Volume
  • ·Coordinate plane
  • + 2 more

6 units · 38 practice items →

MATH 60Grade 6 · Level 60

The transition to abstraction opens.

  • ·Ratios and rates
  • ·Percentages
  • ·Negative numbers
  • ·Algebraic expressions
  • + 2 more

6 units · 45 practice items →

MATH 68Grade 7 · Level 68

Proportionality in five costumes.

  • ·Proportional relationships
  • ·Rational numbers
  • ·Percent increase/decrease
  • ·Probability
  • + 2 more

6 units · 38 practice items →

MATH 75Grade 8 · Level 75

The taxonomy's house example arrives.

  • ·Linear equations
  • ·Systems of equations
  • ·Functions
  • ·Irrational numbers
  • + 2 more

6 units · 44 practice items →

MATH 81Grade 9 · Level 81

Abstract reasoning proper.

  • ·Algebra I
  • ·Linear functions
  • ·Systems of equations
  • ·Exponents
  • + 3 more

6 units · 41 practice items →

MATH 85Grade 10 · Level 85

Proof is KS-8 made into a subject.

  • ·Geometry
  • ·Formal proofs
  • ·Congruence
  • ·Similarity
  • + 3 more

6 units · 43 practice items →

MATH 88Grade 11 · Level 88

Families of functions.

  • ·Algebra II
  • ·Polynomial functions
  • ·Rational functions
  • ·Logarithms
  • + 3 more

5 units · 43 practice items →

MATH 90Grade 12 · Level 90

The terminal course.

  • ·Precalculus / Statistics
  • ·Trigonometric functions
  • ·Advanced functions
  • ·Probability
  • + 3 more

5 units · 36 practice items →

The ELA Meridian — Composition & Rhetoric

The same discipline applied to the mother tongue. The print code is driven to internalization and verified by latency — the reading gate at ELA 50 is the tables audit's twin — while composition climbs the ladder from sentence to paragraph to essay to argument to the defended thesis, each rung consumed by the next.

ELA 0Kindergarten · Level 0

Print encodes speech — everything stands on this.

  • ·Print concepts and all letter names
  • ·Phonological awareness: rhyme, syllables, phonemes
  • ·Letter-sound correspondences and first high-frequency words
  • ·Retelling stories from read-alouds
  • + 2 more

6 units · 55 practice items →

ELA 1Grade 1 · Level 1

The code opens; the first complete sentence.

  • ·Phonemic blending and full segmentation
  • ·Decoding: digraphs, final-e, vowel teams, two-syllable words
  • ·Reading with accuracy and self-correction
  • ·The complete sentence: capital, subject, predicate, end mark
  • + 2 more

6 units · 60 practice items →

ELA 14Grade 2 · Level 14

The code faces its first audit.

  • ·Vowel teams, two-syllable words, prefixes and suffixes
  • ·Fluency on grade-level text: accuracy, rate, expression
  • ·Retelling and key details: fables, folktales, informational text
  • ·How authors use reasons — the seed of argument
  • + 2 more

Course outline →

ELA 27Grade 3 · Level 27

The seam: learning to read ends here.

  • ·Multisyllabic decoding — pseudowords as the pure witness
  • ·Fluency sufficient to support comprehension
  • ·Main idea distinguished from topic; inference, cause, structure
  • ·Referring explicitly to the text as the basis for answers
  • + 3 more

Course outline →

ELA 39Grade 4 · Level 39

Reading to learn, behind the gate.

  • ·The reading-to-learn gate: cold two-passage fluency probe
  • ·Reading to learn across content-area text; summarizing
  • ·Inference anchored in textual evidence
  • ·Multi-paragraph structure: grouped ideas, introduction, conclusion
  • + 2 more

Course outline →

ELA 50Grade 5 · Level 50

Both audits at once — the halfway meridian.

  • ·The oral-reading-fluency audit: two cold passages, ≥145 WCPM at 98%
  • ·The teacher-read timed dictation audit at the 98% floor
  • ·Quoting accurately from texts
  • ·The essay form understood: what each part does and why
  • + 2 more

Course outline →

ELA 60Grade 6 · Level 60

Opinion is consumed by argument.

  • ·Argument enters: claim, reasons, relevant evidence from credible sources
  • ·Citing textual evidence inside the student's own analysis
  • ·Tracing an argument: claims supported by evidence versus claims that are not
  • ·The timed-draft conventions audit: zero fragments, run-ons, or agreement errors
  • + 2 more

Course outline →

ELA 68Grade 7 · Level 68

The counterclaim enters; the untaught word cracks.

  • ·Counterclaims acknowledged — the ladder's first rung
  • ·The research cycle to spec: questions, credibility, citation
  • ·Phrases, clauses, and dangling modifiers
  • ·Evaluating soundness of reasoning and sufficiency of evidence
  • + 2 more

Course outline →

ELA 75Grade 8 · Level 75

The essay arrives unprompted.

  • ·The thesis-driven essay on prompts that never say 'essay'
  • ·Counterclaims distinguished from the writer's claim
  • ·Strongest-evidence selection and ranking
  • ·Sound reasoning — and the irrelevant evidence slipped in
  • + 2 more

Course outline →

ELA 81Grade 9 · Level 81

The steelman year.

  • ·Precise claims; counterclaims developed fairly — the steelman
  • ·The first sustained research paper
  • ·The September sweep: across-the-summer retest of the metalanguage
  • ·Parallel structure; semicolon and colon logic
  • + 2 more

Course outline →

ELA 85Grade 10 · Level 85

Style is analysis made a subject.

  • ·Rhetorical analysis: word choice, structure, and appeals
  • ·Delineating and evaluating arguments
  • ·Syntax as deliberate choice: register, voice, and mood defended
  • ·The rhetorical-analysis essay with oral defense
  • + 2 more

Course outline →

ELA 88Grade 11 · Level 88

The audience enters the argument.

  • ·Counterclaims anticipating audience knowledge, concerns, and biases
  • ·The Two Audiences practical: one argument, two readers
  • ·Research synthesis without patchwriting
  • ·The researched Public Comment on a live local matter
  • + 2 more

Course outline →

ELA 90Grade 12 · Level 90

The defended thesis; the collegiate reading load.

  • ·The thesis-driven research argument: conflicting sources reconciled
  • ·Oral defense under live, unscripted questioning
  • ·Civil discussion carried to resolution or a named crux
  • ·The timed on-demand transfer essay
  • + 2 more

Course outline →

Structural Seams

What the renumbering makes visible — and conventional numbering conceals — are the seams in development. Each seam is an assessment mandate: crossing from arithmetic mastery into the algebra transition (50 → 60) presupposes KS-10 number facts and KS-7 fractions; crossing from print mastery into argument presupposes KS-10 fluency and transcription. The seams are where honest verification matters most — and where the conventional system, promoting by birthday, verifies least.

LevelsMathematicsELA
0 – 14Numeracy acquisitionLiteracy acquisition
27 – 50Arithmetic masteryPrint mastery
60 – 75Pre-algebra to algebra transitionOpinion-to-argument transition
81 – 90Abstract mathematical reasoningRhetorical & analytical reasoning
100+Genuine collegiate mathematicsGenuine collegiate composition

The Collegiate Levels

The scale does not end at 100; it merely changes hands. A student completing MATH 90 is positioned to enter MATH 100 exactly as a senior completing AP Calculus enters a freshman university sequence.

LevelTypical Course
100College Algebra / Calculus I
200Calculus II–III, Linear Algebra
300Real Analysis, Abstract Algebra
400Advanced Undergraduate Mathematics
500–600Master's Mathematics
700–900Doctoral Mathematics