Technology in Science

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Technology in Science Math instruction

• Presented by
• Yasumasa Shigenaga, Kara Johnson, Kathie Kehl

2
Introduction

• "We should all be concerned about the future
  because we will have to spend the rest of our
  lives there."
• Charles Francis Kettering, Seed for Thought, 1949

• The use of technology in math and science
  instruction enables
• Accuracy of diagrams, illustrations
• Display animations and movements
• Enhances interest and motivation
• Nurtures autonomy in learning
• Changes outcomes more easily
• Saves time and prevents mistakes

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Cautions Constraints

• Classroom Management
• Time Constraints
• Technical Difficulties
• Monitoring use and abuse
• Monetary
• Technical Support Availability
• Adequate Teacher Training

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Technology in High School Science

• Technology integrated into the high school
  classroom
• Authentic learning experiences
• Edutopia.org
• Compare text to technology
• Studio Daily Cell video

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Technology in Elementary Science

• Water Cycle
• Diagrams/animations
• EPA.gov
• Earthguide.ucsd.edu
• Sweetwater.org

• Animals
• Video
• National Geographic Kids

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Values of a, b c in quadratic functions and
their graphs

• Lesson plan prepared by Mr. Katsuhisa Tomoda
• (math teacher at Osaka Kyoiku University Ikeda
  High School
• http//www.criced.tsukuba.ac.jp/grapes/)

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In the quadratic function yax2bxc, what
relationship exists between the values of a, b
c and the shape of the graph?
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Value of a and the graph

• In the quadratic function yax2bxc,how does
  the value of a influence the shape of the graph?
• 2

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Value of a and the graph (cont.)
a 2

• When you change the value of a in yax2bxc,
• the width and the direction of the graph changes.
  Therefore, the value of a signifies the width and
  the direction of the graph.

y
a 1
a 0.5
O
x
a -0.5
a - 1
a - 2
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Value of c and the graph

• In the quadratic function yax2bxc,how does
  the value of c influence the shape of the graph?
• 4

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Value c of and the graph (cont.)

• When you change the value of c in
• yax2bxc,
• the graph moves upward or downward without
  changing its shape.
• The value of c signifies the y intercept.

y
c 2
2
c 1
1
c 0
O
-1
1
2
3
x
-1
c - 1
-2
c - 2
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Value of b and the graph

• In the quadratic function yax2bxc,how does
  the value of b influence the shape of the graph?
• 6

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Value of b and the graph (cont.)

• When you change the value of b in
• yax2bxc,
• it is not entirely clear what the value b
  signifies.

y
2
1
O
-2
-1
1
2
x
-1
-2
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Value of b and the graph (cont.)

• In yax2bxc,
• lets find a property that does not change even
  when the values of a and c are changed.
• 8

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Value of b and the graph (cont.)

• When you change the value of a in
• yax2bxc,
• the graph always touches a straight line.
• Lets examine the relationship of this line and
  the quadratic function.
• 9

y
3
2
1
O
-2
-1
1
2
x
-1
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Value of b and the graph (cont.)
a 4

• When you substitute 0 for a in
• yax2bxc,
• the straight line
• ybxc is obtained.
• Therefore, the value b signifies the slope of the
  tangential line on the y axis.

y
a 2
3
a 1
2
a - 1
1
a 0
O
-2
-1
1
2
x
a - 2
-1
a -4
y b x c
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MathType 6

• Compatible with Vista/XP/Macs
• Compatible with Word (2007 older)
• Free for 30 days
• and then it reverts to MathType Litewith
  Equation Editor, fonts, symbols
• 97 (57 academic)
• http//www.dessci.com/en/products/mathtype/default
  .htm

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MathType 6

• Features and Benefits
• Fonts, symbols, templates
• Ingrates tabs and toolbars in many applications
  (including Word, Powerpoint, and Excel)
• Can add equations into virtually any application
• Quick and automatic reformatting of equations

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(No Transcript)
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WebEQ

• Interactive math on webpages
• Compatible with Windows (XP and older, not Vista)
  and Macs
• Free for 30 days
• 495 (99 academic)
• http//www.dessci.com/en/products/webeq/

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WebEQ

• Editor for creating equations
• Publishercan create
• an entire HTML page
• MathML
• Images
• Applet tags
• Interactive WebEQ controls
• Input, viewer, graph, evaluate

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WebEQ

• Drawbacks
• Needs MathPlayer, WebEQ Viewer Control, or Java
  installed to display MathML
• Not compatible with Vista
• Not intuitive (although there is a solutions
  examples section)

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Technology in Science Instruction
Web Resources Collaborative Online Projects
http//www.ciese.org/collabprojs.html Science
News for Kids http//www.sciencenewsforkids.org/ I
nternet into the curriculum http//www.cyberbee.co
m/intclass.html History of Science Technology
http//www.fi.edu/learn/sci-tech/ ABC News
Science Technology http//abcnews.go.com/Technol
ogy/
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Technology in Math Instruction
Enchanted Learning http//www.enchantedlearning.c
om Illuminations http//illuminations.nctm.org/ I
nteractive http//www.shodor.org/interactivate/ac
tivities/ Grapes http//www.osaka-kyoiku.ac.jp/t
omodak/grapes/   Online applications that appear
particularly interesting Mars Earth Orbit
http//illuminations.nctm.org/ActivityDetail.aspx?
ID119 Grapes http//www.osaka-kyoiku.ac.jp/tomo
dak/grapes/