Curriculum — MarineHQ | Common Core Aligned K–6 Math & Reading
300
Math Concepts
300
ELA Concepts
60
Adventure Stories
930K
Words of Content

How Our Curriculum Works

MarineHQ doesn’t separate math and reading. We integrate them — because that’s how the real world works.

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Spiral Review

Every grade uses a 3-cycle spiral model. Concepts are introduced, deepened, then mastered — so nothing is learned once and forgotten.

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Integrated Learning

Math problems live inside reading passages. Vocabulary is learned through story context. Every page teaches both subjects simultaneously.

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AI-Adaptive

The difficulty adjusts in real time. Struggling with fractions? More practice appears. Excelling at vocabulary? Harder words are introduced. Every child gets exactly what they need.

Explore Each Grade Level

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Grade 1
Sunlit Shallows

Counting to 120, addition and subtraction within 20, phonics, sight words, and story comprehension. Scuba Bob is 6 years old and learning right alongside your child.

  • Place value: tens and ones
  • Short and long vowels
  • Story retelling with key details
  • Writing simple opinions
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Grade 2
Coral Reef

Place value to 1,000, regrouping and ungrouping, reading fiction and nonfiction, and structured paragraph writing. Scuba Bob is 7 — confident and curious.

  • Addition/subtraction with regrouping
  • Prefixes and suffixes
  • Main idea and details
  • Opinion and informative writing
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Grade 3
Open Ocean

Multiplication and division mastery, fractions introduction, area and perimeter, and reading to learn. The biggest academic leap in elementary school.

  • Multiplication facts to 100
  • Fractions on number lines
  • Text evidence and central message
  • Research-based writing
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Grade 4
Deep Twilight

Multi-digit multiplication, fraction operations, decimal introduction, angle measurement, and theme analysis in literature. Math starts feeling like real mathematics.

  • Multi-digit multiplication and division
  • Equivalent fractions
  • Figurative language
  • Structured opinion essays
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Grade 5
Kelp Forest

Fraction fluency, decimal operations, volume, coordinate plane, and critical analysis. Scuba Bob is 10 and connecting learning to conservation.

  • All fraction operations
  • Volume of rectangular prisms
  • Greek and Latin roots
  • Evidence-based analysis essays
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Grade 6
Midnight Abyss

Ratios, negative numbers, algebraic expressions, statistical analysis, and sophisticated reading and writing. The bridge to middle school.

  • Ratios and proportions
  • One-step equations
  • Mean, median, mode
  • Argument writing with evidence
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Built on Common Core State Standards

Every concept on MarineHQ maps to a specific CCSS standard code. Your parent dashboard shows exactly which standards your child has mastered.

Mathematics

Operations & Algebraic Thinking, Number & Operations (Base Ten, Fractions), Measurement & Data, Geometry, Ratios, Expressions & Equations, Statistics

English Language Arts

Reading Literature, Reading Informational Text, Foundational Skills, Writing (Opinion, Informative, Narrative), Language Conventions, Speaking & Listening

See the curriculum in action

Start a free 7-day trial and watch your child explore every concept through ocean adventures.

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