Increase your sample and increase your accuracy! Scholars complete an activity that compares sample size to variability in results. Learners realize that the greater the sample size, the smaller the range in the distribution of sample...

Fourth graders measure the height and arm span of various classmates. They use a spreadsheet to design a graph that shows the class measurements from tallest to shortest in metric and standard systems.

Students identify, through the number of rows and columns, the factors related to the product. In turn, they also discover how to find the missing factor, which is part of the fact family for that product.