Liquid measuring devices: These are usually glass or plastic. Fill cup to appropriate line, place on a level surface. Water surface can curve downward, so use bottom of curve for accurate measurement and NOT the edge that is against the cup. Dry measuring devices: These devices do not have spouts. Used for powders and sugars. Scoop ingredient in cup, use a knife or straight edge to level off the top of the cup to make a smooth surface and level top Measuring spoons: Are used to measure both liquid and dry ingredients. For powders, scoop ingredient into spoon and level off with a knife or straight edge. For liquids, pour liquid into spoon by filling It full, level with the top straight edge. Plunger devices: Usually made from plastic, plungers are good for any type of thicker ingredient such as syrup or molasses. They are great for packed brown sugar. Retract plunger to appropriate amount, fill device and smooth off top with a straight edge. Turn upside down and push ingredients out with plunger.