Ei E: Just Passing Through: Designing Model Membranes, Lesson 3 Part 1

Students explore properties of natural membranes and test the performance of several model membrane materials. [18:52]

Students explore properties of natural membranes and test the performance of several model membrane materials. [19:02]

Students explore properties of natural membranes and test the performance of several model membrane materials. [19:33]

A storybook introduces the engineering challenge and context. In this story, Juan Daniel, a boy from El Salvador, learns about bioengineering as he designs his own model membrane. [14:31]

A storybook introduces the engineering challenge and context. In this story, Juan Daniel, a boy from El Salvador, learns about bioengineering as he designs his own model membrane. [18:27]

Students determine the needs of the plant and the consumer for which they are designing their plant packages. [13:38]

Students experiment with reflecting light using mirrors and learn about light intensity. [11:47]

Students experiment with reflecting light using mirrors and learn about light intensity. [11:51]

Students focus on the bioengineering problem of meeting the basic needs of an organism as they imagine, plan, create, test, and improve their own model membrane. This is Part 1. It shows the lesson being conducted in a Grade 4 classroom...

View a portion of this model lesson where students test a variety of filter materials to see how well they remove particles and color from contaminated water. [12:25]