This week 3rd grade focused on understanding grams and kilograms. The students learned that a large paper clip weighs approximately 1 gram and a large dictionary weighs about 1 kilogram.
Partners chose items from around our classroom to weigh using paperclips. They recorded their answers on a table. We then weighed the same object using grams counters. The students discovered that the paperclips only gave them a good estimation of an objects weight. They determined that using gram counters was a much more accurate way to weigh objects.
The 3rd graders completed a second activity using kilograms. They found objects around our classroom that they believed would weigh close to 1 kilogram. Thinking about how the large dictionary felt guided their object choice.
Allowing the students to weigh objects gave them a better understanding of grams and kilograms. The students had a wonderful time figuring out that a marker cap was 1 gram and their science textbook was over 1 kilogram. It’s a good thing they don’t take their science book home!