This short video and interactive assessment activity is designed to teach fourth graders about visual differences in length (english units).

This short video and interactive assessment activity is designed to teach second graders about visual differences in length (english units).

This short video and interactive assessment activity is designed to teach fourth graders about visually comparing weight and balancing a scale (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about visually finding weights and calculate totals (metric units).

This short video and interactive assessment activity is designed to teach fourth graders about visually finding capacity (metric units).

Students are introduced to the nano-size length scale as they make measurements and calculate unit conversions. They measure common objects and convert their units to nanometers, giving them a simple reference frame for understanding the very small size of nanometers. Then, they compare provided length data from objects too small to measure, such as a human hair and a flea, giving them a comparative insight to the nanotechnology scale. Using familiar and common objects for comparison helps students understand more complex scientific concepts.