Yesterday in math we worked with the concept of capacity. We discussed liquid volume and how we measure it using units called Liters and Milliliters. But just how big is a Liter? How big is a Milliliter? These were the questions we set out to answer.

We started with this:


I told the students that this was one Liter of water (dyed purple… This is Pickerington after all!). We compared the Liter to things like a glass, bowl, bathtub and swimming pool so we could get an idea of how much a Liter was.

We then decomposed (divided) our Liter into 10 plastic cups. We discussed how our Liter was now divided equally between the ten cups, and that each cup had 100mL in it. We then counted by 100’s to discover that 1,000mL = 1 L.

Here is what that looked like:


So what would happen if we decomposed 100 mL into ten plastic cups? That was our next question. We divided the 100mL into the 10 cups and discovered that we would end up with 10mL in each cup. Here is what that looked like:


Can we go any smaller? We then wanted to decompose our 10mL into the 10 cups. We used a dropper to measure out 1mL into each of our 10 cups, and this is what we ended up with.


We moved from Liters to Milliliters during the course of the class, discussing each time how we were dividing by 10. We ended up with 1mL and discovered that it would take 1,000mL to make a Liter.