Fourth Grade Students (Use estimation strategies (clustering around an average), and assess the reasonableness of answer

The video tutorial explains how to estimate the total number of 4th grade students in a school using the clustering around an average estimation strategy. It begins by presenting the problem of counting students across five classes, each with a different number of students. The tutorial then demonstrates how to estimate the total by rounding each class size to 20, resulting in an estimated total of 100 students. The exact total is calculated to be 102, showing the estimate is reasonable. The lesson concludes by reinforcing the estimation strategy taught.

How many students are there in Class 3?

• 20

• 23

• 21

• 19

What is the first step in solving the problem of estimating the total number of students?

• Estimate each class size

• Find the exact total

• Add the number of students in each class

• Multiply the number of classes by 20

What number is used to replace each class size in the estimation strategy?

• 20

• 21

• 19

• 23

What is the estimated total number of students using the clustering strategy?

• 95

• 100

• 105

• 110

How close was the estimated total to the exact total?

• The estimate was exact

• The estimate was 10 students off

• The estimate was 5 students off

• The estimate was 2 students off