One of our guesses was 100,000. When we did our calculations in our section of the playground we figured it was close to 100,320!#nlpslearns@NLPSLearnsElem great conversations! (We only counted the top layer)
Last week we estimated the number of rocks on our playground. We first took some guesses, ranging from 30,000 to 600,000. Then we collected random 10 cm x 10 cm sample sizes. We took an average of those sample sizes and multiply that by the area of our playground #nlpslearns