Number Line
A family of tools that share one engine and grow with students across grades.
5 tools
Grade 2 · Math · Sandbox
Jump Line
An open number line where you make your own jumps; compare different students' paths to the same answer.
Grade 3 · Math · SimulatorRoller Coaster Rounding
A coaster car rolls to the nearest ten or hundred hill; see why 45 rolls up.
Grade 3 · Math · MapFraction Trail
Hike a trail marked in fractions; place campsites at 3/4 or 2/2 and discover equivalent points.
Grade 6 · Math · MapDeep Sea Dive
A diver and a bird share a vertical number line; plot positions above and below sea level and compare distances.
Grade 8 · Math · PuzzleSquare Root Hunt
Squeeze the square root of 2 between closer and closer decimals on a zooming number line.