Common Core math · 1st grade
Put three objects in order by length.
1.MD.A.1 is part of the Common Core State Standards for Mathematics. Measure It practices it. Standards vary by state, so check with your kid’s teacher for the exact match.
Measure It: On a craft table, kids compare which thing is longer or shorter, measure with blocks, then use a ruler in inches and in centimeters. The last level puts the object somewhere other than zero on the ruler, the classic mistake.