These 30 task cards cover Metric Mass (Grams and Kilograms). The Red Cards have students decide what unit would be best to measure the object. The Green Cards, students will choose the best estimate. The Yellow Cards, students will move the pictures under the correct unit of measurement. The Blue Cards, students will estimate the mass of the picture. The Orange Cards, students will click on the objects that would be measured in that unit of measurement. The cards are randomized, in different ord