Books
Find one of your child's favorite story time or bedtime books. Have them place gummy bears end-to-end along the spine of the book or around all four sides. If your child can write, have him count and write down the number of gummy bears it takes to make up each side of the book.
Arms &Legs
Have your child extend his arm straight out or have him sit down with his legs straight out in front of him. Place gummy bears along the extended limb --either from the elbow to the tips of the fingers or from the knee to the ankle-- and have him count out how many gummy bears long his arm or leg is. The reward for correctly answering the question should be quite handy.
Small Household Objects
Expect your child to want to eat just about every gummy bear you use for demonstration. Bearing this in mind, use smaller objects to measure, such as small toys, cell phones, video game cases and toothbrushes to limit his sweet intake. A typical pen or pencil, for instance, will measure about five or six gummy bears long.
Parts of the House
Place gummy bears along windowsills, across small doorways, along stairs or across the width of small hallways. Essentially, find any small space in your house that you and your child can measure together. If you want to use larger spaces, such as the entire width of a room, make sure to buy a large bag of gummy bears. (Be sure that you put the gummy bears in clean areas if using the floor to measure such distances.)