We did an interactive math lesson on-line with a pan-balance. The kids loved it! Please refer to this link if you would like to play it on the computer at home. https://illuminations.nctm.org. I have included the math site on my links at the right side under links on my Blog. Go to interactives and under the search location type in pan balance shapes and this activity will come up. Enjoy!

Mrs. Polgar