Comparing Weights

We have been doing a lot with measurement lately and today we worked on measuring weight, rather than length.  We talked a lot about heavy verses light and gave a bunch of examples of things that fit into each category.  The girls were introduced to a balance scale and had to estimate which groups of manipulatives would be heavier (example 3 dice vs. 4 unifix cubes).  After we estimated, the girls were broken into groups of 3 where they actually measured the manipulatives using their balance scales.  There was even a challenge where they had to find a perfect balance between bears and cubes.