Incubator (growing cultures) - Joshua Junkermeier

NGSS STANDARDS (performance expectations):

• HS-LS1-1: Construct an explanation based on evidence for how the structure of DNA determines the structure of proteins, which carry out the essential functions of life through systems of specialized cells.

• HS-LS1-2: Develop and use a model to illustrate the hierarchical organization of interacting systems that provide specific functions within multicellular organisms.

• HS-LS1-3: Plan and conduct an investigation to provide evidence that feedback mechanisms maintain homeostasis.

SCIENCE AND ENGINEERING PRACTICES:

• planning and carrying out investigation

• analyzing and interpreting data

• engaging in argument from evidence

• obtaining, evaluating, and communicating information

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Part 1: making the agar plates

Part 2: Planning the independent variable (data source location)

Part 3: Inoculating the Petri Dish

• Students swab a "pathogenic surface" and inoculate their petri-dish

• Form: submitting estimates for species present and colony number

Part 5: Optional activities for closure of this "pathogen lab"

• Argumentation Activity: students use "talk moves" to engage in an argument around a relevant topic or problem:

1. Problem: "How should the data be used?"

2. Problem: "Does this school have a pathogen problem?"

3. Problem: "are the Eukaryotic or Prokaryotic Cells a bigger concern?"

• Experimental Error Analysis and Problem Solving

• 1. Engage in argument

  2. (insert powerpoint slides for argument here)