
Public learning track
Understanding Division Models and Sharing
3rd Grade · Math · Open Global Math
7 lessons
Goal
Master fair-share partitioning, measurement grouping, and visual models of whole-number division.
Featured Diagrams
Division as Fair Sharing (Partitive Division)
7 lessons
0 of 7 done
- 1Division as Fair Sharing (Partitive Division)Up nextStart
- 2Division as Equal Grouping (Measurement Division)PremiumNot started yet
- 3Modeling Division on a Number LineNot started yet
- 4Representing Division with Array and Area ModelsNot started yet
- 5Representing Division with Strip DiagramsNot started yet
- 6Writing Division Number Sentences from ContextsNot started yet
- 7Understanding the Meaning of RemaindersNot started yet
Standards Covered
- OGM.4.OA.2Open Global Math Standards 2026™ · Math · Level 4 / Grade 3 (Age 8) · Grade 3Interpret whole-number quotients as fair sharing (equal shares partition) and equal grouping (measurement partition); represent quotients using concrete manipulatives, diagrams, and number sentences.
- OGM.4.OA.4Open Global Math Standards 2026™ · Math · Level 4 / Grade 3 (Age 8) · Grade 3Apply properties of operations (commutative, associative, and distributive properties of multiplication over addition) and understanding of division as an unknown-factor problem to multiply, divide, and justify computational procedures.
- OGM.4.OA.6Open Global Math Standards 2026™ · Math · Level 4 / Grade 3 (Age 8) · Grade 3Solve and formulate one-step and two-step contextual word problems involving the four operations (+, -, ×, ÷), additive structures (composition, transformation, comparison), multiplicative scaling, and correspondence (n to m objects); represent situations using strip diagrams, arrays, and equations.
Curriculum Framework
3rd Grade · Math · Open Global Math
1
8 lessons
Understanding Multiplication Models and Comparisons
Understand multiplication conceptually through equal groups, arrays, number lines, repeated addition, and multiplicative comparison.
2
7 lessons
Understanding Division Models and Sharing
Master fair-share partitioning, measurement grouping, and visual models of whole-number division.
3
9 lessons
Multiplication and Division Facts Fluency
Achieve automatic recall of multiplication and division facts through 10 × 10 and apply parity rules.
4
6 lessons
Properties of Multiplication and Division
Apply the commutative, associative, and distributive properties to multiply, divide, and simplify calculations.
5
6 lessons
Algebraic Equations and Unknown Values
Find unknown values represented by symbols, boxes, and letters in multi-term equations across all four operations.
6
9 lessons
Multi-Operation Word Problems and Modeling
Formulate and solve one-step and two-step contextual word problems using all four operations, visual diagrams, and equations.
7
8 lessons
Number Patterns and Input-Output Rules
Identify, extend, and generate arithmetic and geometric patterns, and formulate verbal rules for input-output tables.