Types of Labs

Model-building Investigation Labs “MBI” (MAJOR)

A MBI Lab is done so that the class derives an important mathematical relationship from the data and constructs a conceptual model for a system that is a good example, a “paradigm,” of the concepts we are studying. These assignments will be worth at least 100 points in the Assignments category. 

Sequence

• Teacher demonstration of a system, class observes

• Whole-class identification of variables that could be investigated

• Group procedure development, data collection and analysis

• Group data presentation to the whole class

• Teacher leads Model-building wrap-up discussion

• Lab write-up (usually on your own)

You will write up your lab following this format.Your lab will be graded using this rubric. 

Sense-Making Activities “SMA” (MINOR)

SMA labs involve observations of a system or systems related to a model we are introducing or that we already know about. They are done to describe aspects of the model or to expand the model, but typically do not derive a mathematical relationship from the data. They will not involve a full write-up. A lab sheet may be assigned to be completed, or instructions on what to draw or write will be given in class. Minor assignments will usually be worth 20-50 points in the assignments category. 

Model Application Practicums “MAP” (MINOR)

Model application practicums are usually assigned after the model has been introduced. They take the form of a problem to solve or a prediction to be made where the solution or the prediction can actually be shown to be correct using physical materials in the classroom (predict where the ball will land, then test it). Students are typically asked to write about their group’s approach to solving the problem or making the prediction, show their data and calculations, and comment on how accurate they were with an analysis of what their group did well or did not do well. 

Model Verification Demonstrations “MVD” (MINOR)

Occasionally we will do a lab or demonstration to show aspects of a model or constant that we already know about. For instance, we might gather data to show that the value of freefall acceleration given by textbooks is actually what we see in our classroom.