Baliga Systems Education Experiences

Baliga Systems Education Experiences

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Mar 25, 2015
Anna Farrell-Sherman
Curriculum, Ecological Networks
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Ecological Networks – Overview

The development of network concepts for students begins with a highly interactive inquiry into cell phone networks. Cell phones serve as a handy knowledge base on which to develop understanding. Each cell phone represents a node, and each phone’s address book represents an edge, or the calling relationships between cell phones.

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Mar 25, 2015
Anna Farrell-Sherman
Ecological Networks
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Ecological Networks – Unit Plan

This 2 week curriculum module gives middle and high school students an introduction to 1) the concept of systems (aka networks), 2) using software tools to analyze networks, and 3) using both experimentation and networks as a way to define hypotheses and test outcomes.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 1 – Introduction to extremophiles

In this activity, the students will be introduced to the fascinating world of extremophiles. The students will brainstorm questions and research these unique organisms. In the following lesson, students will be presented with a real life example of an event that affected the Great Salt Lake ecosystem, the building of a causeway.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 2 – GSL case study introduction

The students will be presented with a real life example of an event that affected the Great Salt Lake ecosystem – the building of a causeway. Based on observations of this phenomenon, students will generate hypotheses about factors affecting the growth of one prominent organism in this ecosystem, Halobacterium.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 3 – Spectrophotometer and Micropipette use

The students will be introduced to two different pieces of equipment, the micropipette and the spectrophotometer. Both of these instruments will be used in a future investigation.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 4 – Conducting Halo Salinity Experiment

Halobacterium are extremophiles thriving in high saline environments. An ecological disturbance in a single abiotic or biotic factor could affect an entire ecosystem. Natural events and human activities affect the Earth’s capacity to sustain biological diversity. Spectrophotometers are used to measure cell density.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 5 – Data Analysis Halo Salinity Experiment

An increase in salinity allows for an increase in halobacteria population size. The reliability of data increases with an increase in the size of the data pool/set. To draw reliable conclusions, multiple trials/replicates should be performed.

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Feb 04, 2015
Anna Farrell-Sherman
Ecological Networks
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Lesson 6 – Revisiting the GSL Network

Energy flows in one direction and is stored in matter.
Trophic levels indicate an organism’s position on a food chain. The amount of available energy decreases as it progresses through food chains; the total amount of available energy in a trophic level is less in higher trophic levels than in lower trophic levels.

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Aug 24, 2015
SEE
Ecological Networks
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Teacher Background Information – Ecological Networks

The Great Salt Lake is an interesting ecosystem to study due to the organisms that inhabit this saline environment and due to the impact humans have had on this ecosystem. In 1952, a causeway was built to replace an existing railroad trestle. Unlike, the previous trestle, the new causeway does not allow circulation of water between the two sides of the Great Salt Lake.

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Oct 15, 2019
Rachel Calder
Ecological Networks
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Contributors: Ecological Networks

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Contributor

Rachel Calder
     


Published:
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Category:
Author: Rachel Calder

Standards:

Modules

  • Community Contributed (6)
  • Ecological Networks (10)
  • Environmental Influence on Gene Networks Module (7)
  • Food Security (11)
  • Introduction to Systems (5)
  • Observing Beyond our Senses (9)
  • Ocean Acidification: A Systems Approach to a Global Problem (15)

Quicklinks

  • Purple Membrane Simulation Model
  • Cell Phone Simulation
  • Blank Food Web
  • Movie: Using a Hemocytometer
  • Movie: using a micropipette
  • Movie: A brief review for using a micropipette
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