Transcript Power Point Presentation - NSTA Learning Center

Intro Slide
http://institute.nsta.org
NSTA Web Seminar II:
Watershed Dynamics
Professional Development When and Where You Want It
Flavio Mendez
Flavio Mendez
Program Manager
Symposia and Web Seminars
National Science Teachers Association
http://institute.nsta.org
Agenda:
1. Introductions
2. Tec-help info
3. Web Seminar Tool Training with
Examples
4. Web Seminar Presentation
5. Evaluation
6. Chat with the presenters
Let’s do a poll
question!
Is this your first Web
Seminar?
http://institute.nsta.org
Al Byers
Assistant Executive Director
Government Partnerships and e-Learning
National Science Teachers Association
http://institute.nsta.org
Jeff Layman
Jeff Layman
Tec Support NSTA Institute
703-312-9384
[email protected]
National Science Teachers Association
Screen Shot
Let’s do a poll
question!
Who is in the audience?
http://institute.nsta.org
Top line, from right-to-left:
1. Top, right-corner, small square:
minimize/maximize tool palette
2. Highlighter
3. Stamps
4. Clear and shaded geometrical figures
Where is everybody?
Use a stamp to pinpoint your location in the world
Where is everybody?
Use a stamp to pinpoint your location in the USA
Top line, from right-to-left, (cont.):
5. Arrow head and tail (on/off)
6. Diagonal line (continuous or dotted):
(arrowhead and tail work together with line)
7. Levels of shading from max to min.
8. Paintbrush
9. Clear button
10. Undo
Watershed Dynamics:
Modeling
Bill Carlsen
Penn State University
Nancy Trautmann
Cornell University
Authentic Inquiry
Learning science “as science is practiced”
– Real questions with unknown answers
– Important problems (often local)
– Socially constructed through
collaboration, argumentation, and critical
evaluation by peers
Example of a Dynamic System
Image source: http://www.bbc.co.uk/schools/gcsebitesize/img/bilynxandhare.gif
Modeling
• Physical models
- fish tank population growth
• Conceptual models
- parthenogenetic guppy birth
• Mathematical models
- coin-flipping simulation
Poll 1
Have you used any of the following
types of modeling software with
your students?
National Science Ed Standards
Unifying Concepts and Processes
STANDARD: As a result of activities in grades K-12, all
students should develop understanding and abilities
aligned with the following concepts and processes:
– Systems, order, and organization
– Evidence, models, and explanation
– Constancy, change, and measurement
– Evolution and equilibrium
Problem 1
Model how land use practices affect
stream flow in watersheds.
What variables should be included in a
mathematical model of such a system?
http://www.csc.noaa.gov/crs/lca/change_analysis.html
http://www.csc.noaa.gov/crs/lca/change_analysis.html
Homegrown Analysis
Your students can do land use analysis…
Project GLOBE protocols:
http://www.globe.gov/fsl/html/templ.cgi?measpage
Or get data from elsewhere…
Environmental Literacy Council land use links:
http://www.enviroliteracy.org/subcategory.php/26.html
Local agencies (e.g., planning, conservation,
Cooperative Extension)
STELLA
Streamflow
Model
Trial 1:
0,100,0,0
(100% Forest)
Rainfall graphical input
Student’s streamflow prediction
Results:
0,100,0,0
Trial 2: 50% Forest
Your prediction?
Trial 2 Output
Poll 2
Do you think that a simulation like
the streamflow model would be
useful in any of your classes?
Problem 2
Urban students may not
live in their watershed,
much see it.
How to introduce the
watershed concept?
Approach
Idea:
Begin with a physical
model (in this case, a
physical model of a
conceptual model!)
Building the Model
Problem 3
How do you keep a lake
from filling up with green
muck?
You’re the Watershed Manager
Your job: Control eutrophication
How?
– Agricultural practices
– Amount of land that is farmed
– Human population growth
– Wastewater treatment
Poll 3
You're a Watershed Manager. Your job is to
control eutrophication in a lake, and a local
fisherman is willing to help monitor your
progress from his boat, which he takes
fishing every Saturday. Which of the
following would be the simplest RELEVANT
variable to monitor?
Possible Outcomes to Monitor
• Algal density (cells / ml)
• Secchi depth (turbidity)
• Dissolved oxygen (D.O.) at the
bottom of the lake
Management Interface
Results
Links
“Guide to Mostly Free Geospatial Data”
http://libinfo.uark.edu/GIS/US.asp
isee Player or STELLA software
http://www.iseesystems.com
Environmental Inquiry Project
http://ei.cornell.edu
http://ei.ed.psu.edu
National Conference on Science
Education, Anaheim, CA
NSTA Symposia:
• NASA: Stars, Planets, Life and the Universe
• NASA: Preparing for the Journey to Space: Energy
• NOAA: Coral Ecosystems
• NSTA Press: Energy: Stop Faking It!
• NSTA Press: Uncovering Student Ideas in Science
NSTA Web Seminar
Evaluation
http://institute.nsta.org/survey/wdSurvey2.asp
Upcoming NSTA Web Seminars:
• Investigating Safely II
February 22, 2006
6:30 PM Eastern Time