This worksheet uses non-standard units of measure with the use of a numbered ruler. Students will get practice utilizing the ruler that is lined up with objects of various lengths. They will carefully color the rulers so that each matches the length of each spring object then record the measurement. A bit more challenging than the "Measure with Unifix Cubes" set also found by "The Magic of Kindergarten" at TpT, but less difficult than trying to correctly line up a real ruler. Key is included.