In this activity students experience large numbers by estimating the number of grass blades in a field. Shares results with the class. Materials Handlers PASS OUT four dowels and four rubber bands to each group. Equipment Handlers MAKE a square, using the rubber bands to connect the corners.
Class GOES outside to a field of grass.
Equipment Handlers WALK the square along each side of the field to determine its length and width. Speakers FILL OUT the data collection sheet to determine the total number of blades of grass in the field. We used this method at the Miami Museum of Science. Our field is about 3,600 square meters and there were about 1,300,000 blades of St. Augustine grass. Find out more about large numbers and pH .