Numeria Odyssey
Choose Your Grade
Pick a grade to browse every lesson. Four lessons in each grade are free for everyone; the remaining lessons stay visible and show when a grade subscription is required.
Grade 1
Number sense & early operations
Place value, addition, shapes, time, and data with friendly visual models.
67 lessons
Browse gradeGrade 2
Fluency within 100 & early measurement
Two-digit operations, money, length, arrays, and graphing foundations.
67 lessons
Browse gradeGrade 3
Multiplication, fractions & area
Equal groups, fraction models, area, and multi-step problem solving.
67 lessons
Browse gradeGrade 4
Multi-digit computation & comparison
Larger numbers, fraction equivalence, angles, and measurement conversions.
67 lessons
Browse gradeGrade 5
Decimals, volume & coordinate reasoning
Decimal operations, volume, the coordinate plane, and rich fraction work.
67 lessons
Browse gradeGrade 6
Ratios, expressions & rational numbers
Ratio reasoning, negative numbers, expressions, and area/volume connections.
67 lessons
Browse gradeGrade 7
Proportional relationships & probability
Percent, scale, sampling, and equations tied to real contexts.
67 lessons
Browse gradeGrade 8
Linear functions & transformations
Slope, systems, roots, and geometric transformations on the plane.
67 lessons
Browse gradeGrade 9
Algebra I foundations
Functions, polynomials, quadratics, and modeling with equations.
67 lessons
Browse gradeGrade 10
Geometry proofs & measurement
Constructions, circles, similarity, trigonometry, and 3D measurement.
67 lessons
Browse grade