Plant measure Measure and record the amount of water given to a plant over time. Counting by tens. Column addition of metric measurements.
Students describe how plants use water to grow.
Show the students the full liter bottle and measure out enough to normally water the plant. Write down a journal entry of the amount measured and the date. Once or twice a week have the students find that page in their journals again and start a new line with the date and the amount poured out of the same liter bottle. When the bottle is empty ask the students to count and add the total on their page. Count by tens to find the sum.