5_10_07

Cupfuls of soil lesson:

Introduce the idea of the science experiments they are doing, and how they need to fill the green pots with soil. Tell them that we need to find out how much soil fits in one pot so the teachers know how much soil to buy.

Students work to find out how many cupfuls of soil it takes to fill the pot, and record their results on chart paper. Demonstrate how to take turns filling/counting/recording. Come back to share: why are our numbers so different? Begin to come to agreements about standardizing the measurement: fill the cup to the top but not past the top, don't push the soil down in the cup, fill the pot to the very top.