Control Chart: Hundred Board With Roman Numerals
The control chart for the Hundred Board with Roman numerals: the printed sheet a child checks their own sequence against. Roman numerals are the case where checking has to be available, because there is no pattern in the shapes to fall back on and a child who has put one tile in the wrong place has no way of feeling it. The board itself is a separate item, and the chart on its own is a reference rather than a material. Laminated print.
“The greatest sign of success for a teacher is to be able to say, 'The children are now working as if I did not exist.'”
The Control Chart for the Hundred Board with Roman Numerals bridges two mathematical symbol systems through its laminated 10x10 grid design.
- Recognition of Roman numerals from I to C through visual matching
- Understanding of base-five and base-ten patterns in Roman notation
- Development of self-correction skills using the control chart as reference
- Connection between Arabic and Roman number systems
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This reference tool allows children to independently verify their Roman numeral work against the familiar Arabic numbers they've mastered through the Hundred Board. The laminated surface of this control chart withstands repeated handling as children trace connections between I and 1, X and 10, L and 50. By presenting Roman numerals in the same grid format as the traditional Hundred Board, this chart leverages the child's existing understanding of numerical relationships. The control chart's visual organization reveals patterns within the Roman system, how V appears at every fifth position, how X marks each decade. This laminated reference empowers children to discover the logic behind Roman notation independently, transforming an ancient numbering system into accessible knowledge through the familiar hundred-square format.
How to present it
Follow the Montessori method of presentation for optimal child development.
Place the laminated control chart beside the Hundred Board. Ensure good lighting to see the printed numerals clearly. Have a dry cloth ready to clean the laminated surface if needed.
- 1
Introduce the chart by showing how I corresponds to 1, II to 2, continuing through X for 10
Point to both the Roman numeral and its position to reinforce the connection - 2
Demonstrate finding specific numbers: 'Where is 25?' Guide child to locate XXV on the chart
Use the grid structure, third row, fifth column, to support systematic searching - 3
Invite child to match Hundred Board tiles with corresponding Roman numerals on the chart
Start with familiar numbers like 5, 10, 50 before moving to complex combinations - 4
Show how to verify work by checking tile placement against the control chart positions
Encourage tracing the numeral with a finger on the laminated surface
Every Child Is a Little Creator
Heritage
Since 1929
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AMI
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