open number line
(o-pen-num-ber-line)
5 syllables
Definition
noun. a visual representation of numbers on a straight line, where only some numbers are marked, allowing for flexible placement and estimation of other numbers.
Example Sentence
The teacher used an open number line to help students understand addition and subtraction.
More Example Sentences
An open number line allows students to visualize mathematical concepts in a more flexible manner.
Synonyms
number line; visual aid; math tool
Antonyms
closed number line; fixed scale; rigid scale
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open number line
