A vertical number-line adventure where students place values on a mountain-and-ocean scale that always reads zero at the dock. K-1 works with whole numbers to 20; 2-3 adds negatives and numbers to 100; 4-5 extends to 1,000 with a dedicated decimal-progression mode (tenths and hundredths). Each session ends in a printable receipt with a QR-linked completion check.
A vertical number line adventure
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Students place values on a mountain-and-ocean scale that always reads zero at the dock. K-1 works with whole numbers to 20; 2-3 adds negatives and numbers to 100; 4-5 extends to addig ans subtracting with negatives and extends the learning with a dedicated decimal-progression mode (tenths and hundredths). Each session ends in a printable receipt with a QR-linked completion check.