During math we have been exploring different measurable attributes including length, weight, and capacity.  Children have spent time comparing objects to say which is longer or shorter and heavier or lighter.  They have also measured the length of objects with cubes and the weight of objects with tiles.  We explored capacity by estimating how many counting bears could fit inside various containers, and then measuring to find the actual amount.  As we explored different ways of measuring objects we noted that one attribute doesn't necessarily correlate with another, so something very long isn't necessarily heavy, while something with a seemingly small capacity can be quite heavy.  Children especially enjoyed measuring themselves!