Today we practiced finding the mass and volume of different objects. First I asked the students to come up with some way to organize their information in their journals. Most eventually ended up with a table. To find the volume, we measured the water displacement after the object was placed in a graduated cylinder of 200 mL of water. To measure the mass, we used a triple beam balance. The most challenging object with regards to mass was the ball, which wouldn't stop rolling off the triple beam balance. Eventually the students realized they would need something to hold it. They chose a beaker, and figured out how to measure the mass of the ball without including the mass of the beaker - measure the mass of the beaker separately, measure the mass of the beaker and ball together, then subtract the mass of the beaker.
I'm a wife, mother of two, and 4th grade teacher who is totally in love with her job! I teach math and science to roughly 40 kids a year. I've tried to model my classroom after this quote by Elliot Eisner - "When the joy is in the journey, the journey will be pursued." I feel very fortunate to work in an amazing school district, where it is commonplace to push students to their full potential and settle for nothing less. I truly feel blessed!!