4.MD.1 Know the relative size of measurement units within one system of units including (km, m, cm) (kg,g) (lb, oz) (L, mL) (hr, min, sec) (gal, qt, pt, c)
4.MD.1a Understand the relationship between gallons, quarts, pints, and cups.
4.MD.1b Express larger units in terms of smaller units within the same measurement system.
4.MD.1c Record measurement equivalents in a t-chart (a 2 column table).