Evaluate design constraints on solutions for maintaining ecosystems and biodiversity.

 Expanded Standard header image

Disciplinary Core Idea

ETS1: Engineering Design

Standard Text and Component Idea

Explanation and Support of Standard

Crosscutting Concept

Science and Engineering Practice

6.ETS1.1 Evaluate design constraints on solutions for maintaining ecosystems and biodiversity.

Component Idea:

A. Defining and Delimiting an Engineering Problem

The wording and specificity of an engineering problem is a major factor in the quality of the solutions that may be created for a particular problem. Effective problems should have clear design constraints that incorporate scientific understanding. Constraints should recognize that humans have needs that are met only through use of natural resources, but balance the importance of those needs with stewardship responsibilities. For example attempting to eliminate an invasive species may only result in replacing one invasive species with a new invasive species or knowledge of local climate might influence plantings.

Examples include comparing recycling programs (deposits, curbside pickup, drop-off centers) and the cost/benefit analysis of recycling solutions. Address engineering design issues centered on water treatment (filtration, chemical treatment, reverse osmosis). Design solutions to minimize soil erosion (forestry practices, farming techniques, construction, and recreation). Examples of design solutions could include scientific, economic, or social considerations.

Stability and Change

Students explain that systems in motion or dynamic equilibruim can be stable.        

 

Asking questions (for science) and defining problems (for engineering)

  Students define design problems, invoking scientific background knowledge to define multiple criteria and constraints for solutions.