Public learning track
Ordinal Numbers, Rank, and Positional Order
1st Grade · Math · Open Global Math
7 lessons
Goal
Identify and use ordinal numbers from first through twentieth and beyond to specify positions, determine relative ranks, and connect rank to preceding cardinal quantities.
Featured Diagrams
Using Ordinal Numbers from 1st to 10th
7 lessons
0 of 7 done
- 1Using Ordinal Numbers from 1st to 10thUp nextStart
- 2Using Ordinal Numbers from 11th to 20thPremiumNot started yet
- 3Extending Ordinal Numbers Beyond 20th to 100thNot started yet
- 4Identifying Relative Positions: Before, After, and BetweenNot started yet
- 5Determining Directional Rank: Left, Right, Top, and BottomNot started yet
- 6Connecting Ordinal Rank to Cardinal Quantities Before and AfterNot started yet
- 7Solving Word Problems with Ordinal Positions and Line LengthsNot started yet
Curriculum Framework
1st Grade · Math · Open Global Math
1
8 lessons
Subitizing, Ten-Frames, and Conservation of Quantity
Instantly recognize structured quantities up to 20 without one-to-one counting and explain how quantity remains unchanged under spatial transformations.
2
8 lessons
Forward and Backward Number Sequences to 120 and Beyond
Read, recite, and write sequences forward and backward from any starting number up to 120, extending patterns to 1,000 using number lines and charts.
3
14 lessons
Skip-Counting, Parity, and Hundred Chart Patterns
Skip-count forward and backward by 2s, 5s, and 10s to quantify collections up to 120, identify even and odd numbers, and explore grid patterns.
4
7 lessons
Ordinal Numbers, Rank, and Positional Order
Identify and use ordinal numbers from first through twentieth and beyond to specify positions, determine relative ranks, and connect rank to preceding cardinal quantities.