I feel like I’ve been filling my blog with so many geometry activities lately, and today will be no exception. #sorrynotsorry This is seriously one of my favorite units. This week, we were finally ready to dive into three-dimensional objects!
I partnered up my students, passed out a handful of blocks, and gave them a shape to cut out. Even though we were working in groups of two, we all had the same shape. I wanted to explore what volume was, and how to calculate it with a common example.
After filling their shape with cubes, I asked them to talk with their partner about a possible formula. My students were excited to create their own formula, versus just being told the formula. I love this strategy, because I think they remember the formula later down the road.
After they had a possible formula, I passed out a sheet of grid paper. I asked them to create their own shape. After cutting out their shapes, I asked them to fill their shape with blocks, and TEST their formula. We had major light bulb moments here!!!! I had one group that thought that the formula was
When this group created their own example, they discovered that their formula was incorrect. I LOVED hearing them discover and explain why their first formula wasn’t correct.
After everyone had the opportunity to create their own shapes, I numbered them, and hid them around the room.
Then, we hunted the room to find each shape and calculate the volume! 🙂
You can grab the grid paper and example foldable by clicking the image above!
I always practice and work in small groups after an activity like this with task cards! You can find my Volume Task Cards by clicking the image above!