Estimating Mass in Kilograms Using Benchmarks

This video tutorial teaches third graders how to estimate mass using benchmarks. It explains the concept of mass, the units of grams and kilograms, and how to use common objects as benchmarks for estimation. The video provides examples of objects with masses of 1, 10, and 100 kilograms and includes practical exercises to estimate the mass of a pumpkin and a third grader. The lesson emphasizes that estimates are educated guesses and do not need to be exact.

What is mass and how can it be measured?

What benchmarks can be used to estimate the mass of a regular sized strawberry?

List some objects that have a mass of about 1 kilogram.

How can you estimate the mass of a pumpkin using benchmarks?

What is the estimated mass of an average sized third grader?