Grade: 3 - Engineering 3

3.E.3
Construct and perform fair investigations in which variables are controlled and failure points are considered to identify aspects of a model or prototype that can be improved.

I Can Statements Academic Vocabulary
I can construct and carry out a fair investigation which includes controlled variables.

I can construct and carry out a fair investigation in which failure points are considered.

I can use failure points from an investigation to identify aspects of a model or prototype that can be improved.

Variable
Control
Model
Prototype
Engineering Design Process
Cross Cutting Concepts
Structure and Function
*The way an object is shaped or structured determines many of its properties and functions.

Cause and Effect
*Events have causes, sometimes simple, sometimes multifaceted. Deciphering causal relationships, and the mechanisms by which they are mediated, is a major activity of science and engineering.

Science and Engineering Process Standards
SEPS 2: Developing and Using Models

SEPS 3: Planning and Carrying Out Investigations

SEPS 5: Using Mathematics and Computational Thinking

SEPS 6: Constructing Explanations and Designing Solutions
Looking Back Looking Ahead
Analyze data from the investigation of two objects constructed to solve the same problem to compare the strengths and weaknesses of how each performs. (K-2.E.3) Develop a prototype to generate data for repeated investigations and modify a proposed object, tool, or process such that an optimal design can be achieved. (6-8.E.4)

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