Curated OER
Fly Away With Averages
Learners discover the process of finding the mean, median, and mode. Through guided practice and problem solving activities, they use a computer program to input data and create a graph. Graph data is used to calculate the mean,...
Curated OER
How Many Bears in the Forest?
Third graders model the tag and recapture of bears and use proportions to estimate the population of the bears in their forest. This is a statistical sampling method used by scientists and naturalists to determine population numbers.
Curated OER
Basic Subtraction Facts: Missing Blanks
In this math worksheet, students solve 20 subtraction problems in which there is a missing number in each. Students use the number line to fill in the missing number in each problem.