About this game

The heaviest, the lightest

The heaviest, the lightest: a free Kindergarten math game for ages 5-6. Each round draws 5 questions; instructions are read aloud and every answer is checked and explained.

How it plays and why it helps

Every scale in this game is balanced, and that is the clue. The heaviest, the lightest shows four scales, each with one object on the left and a stack of cubes on the right. Your child taps the heaviest or the lightest, depending on the card. The instruction is read aloud, five cards make a round in this Kindergarten game, and every answer is checked and explained: the more cubes it takes to balance, the heavier it is.

Here the cubes act as a unit of weight. A butterfly weighs one or two cubes, a duck five or six. Comparing weights by counting the same unit is a first taste of measurement, and the hint keeps it simple: count the cubes across from each one.

Cards switch between heaviest and lightest. After a few heaviest cards, a child may tap the duck with the tallest stack on a lightest card too. The duck is never the lightest. Read the word again and ask, "Fewer cubes or more cubes?" Praise the switch: "You heard lightest and went for fewer."

Aligned with

  • K.MD.A.1 Describe measurable attributes of objects, such as length or weight. Describe several measurable attributes of a single object.
  • K.MD.A.2 Directly compare two objects with a measurable attribute in common, to see which object has "more of"/"less of" the attribute, and describe the difference. For example, directly compare the heights of two children and describe one child as taller/shorter.

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