Title: A Few of My Favorite Things for Teaching Math to Students Who are Visually Impaired
1A Few of My Favorite Things for Teaching Math to
Students Who are Visually Impaired
2Presented bySusan A. Osterhaus
- Texas School for the Blind and Visually Impaired
- 1100 West 45th Street
- Austin, TX 78756
- (512) 206-9305
- susanosterhaus_at_tsbvi.edu
- http//www.tsbvi.edu/math/
3Suggested Adaptive Tools and Materials
- Math Materials
- Basic Tools and Technology
- Calculators
- Drawing/Construction Tools
- Measuring Tools
- Student-Generated Graphics
- Graphics Made by Others
- Strategies and Resources
4Math MaterialsBraille Reader
- High Quality Braille Textbook
- Nemeth Code y .k x2"3x4
- Tactile Graphics
- Teacher-Made Materials
- Worksheets
- Quizzes
- Tests
5Nemeth Translation Packageshttp//www.tsbvi.edu/m
ath/nemeth-trans.htm
- Duxbury DBT WIN 10.3
- or MegaMath http//www.duxburysystems.com
- MacKichan Scientific Notebook http//www.mackicha
n.com
6Math MaterialsLarge Print Reader
- Large Print Textbook
- Enlarged Materials
- Regular Print with Magnification
- Be Alert for Color-Keyed Graphics
7Basic Math Tools Braille Reader
- Braillewriter
- Braille Paper
- Braille Eraser
- Abacus
8Basic Math TechnologyBraille Reader
- Refreshable Braille
- Braille Notetaker
- PC with Refreshable
Braille Keyboard - Laptop
9Basic Math Tools Large Print Reader
- Black Line Paper
- Proper Writing Implement
- Reading Stand
10Basic TechnologyLarge Print Reader
- Desktop Computer
- Laptop
- Low-Vision Software
11New TechnologyLarge Print Reader
- Virtual Ink Corporation
- http//www.mimio.com
12New Technology For All
- addition
- subtraction
- multiplication
- division
- VP Algebra
-
- Virtual Pencil
- http//www.hentermath.com
13Head-Start Hands-On Tools
- APH Tactile Demonstration
- Thermometer
- HANDS-ON EQUATIONS?
- Learning Systems
- http//www.borenson.com
14Voice Recognition Software
- MathPadTM By VoiceTM
- MathTalkTM/Scientific NotebookTM
- MathTalkTM/Scientific WorkPlaceTM
- http//www.metroplexvoice.com/
15NASAs Online Math Description Engine (MDE)
- Graphing Calculator Math Trax
- http//prime.jsc.nasa.gov/demo/IAL/index.html
16Math Players Math-to-Speech Technology
- Design Science http//www.dessci.com
17Accessible Scientific/Graphing Calculators for All
- Talking Scientific Calculator
- ORION TI-34
- http//www.orbitresearch.com
- Talking Graphing Calculators
- Accessible Graphing Calculator (AGC)
- Large Display, Self-Voiced, Print and
- Tactile Graphics, AudioWave
- http//www.viewplus.com/
- GTCalc
- Large Display, Self-Voiced, Print
- Graphics, Audiowave
- http//www.horizonsoftware.com.au
-
18Braille Scientific Calculators
- PAC Mate (BX or QX)
- Talking Scientific Calculator with refreshable
braille - Graph-It (tactile graphics and
audiowave)
http//www.freedomscientific.com/ - BrailleNote (BT or QT)
- Talking Scientific Calculator
with refreshable braille - http//www.pulsedata.com
- Leo Braille Display
Scientific Calculator - http//www.sensorytools.com
- (presently out of stock)
19Large Display/Graphing Calculator Solutions
- TI Graphing Calculator
- Screen Enlargement Solution http//education.ti.c
om/educationportal/ - Sci-Pod
http//www.sightenhancement.com - Scientific Notebook http//www.mackichan.c
om - TI-83 Trainer http//www.goldedte
ch.com
20Drawing/Construction Toolshttp//www.tsbvi.edu/ma
th/mathtools.htm
- Drawing Board
- Compass
- Straightedge
- Tracing Wheel
- Braille/Print Protractor
- Stylus and/or Pen
- http//www.APH.org/
- http//www.fiskars.com/
- http//www.perkins.org/
21Measuring Tools http//www.tsbvi.edu/math/mathtoo
ls.htm
- Ruler
- Yardstick and Meter Stick
- Braille/Print Protractor
22Student-Generated Quick/Instant Tactile Graphics
- APH Quick-Draw Paper
- APH Picture Maker Wheatly
Tactile Diagramming Kit - Thermo Pen I II http//www.repro-tr
onics.com - WikkiStix http//www.wikkistix
.com
23Student-Generated Graphics on a Number Line
- APH Number Line Device
- Student-Made Number Lines
-
77r77r77r77r77r33r33r33o - -1 0 1 2 3 4 5
24Student-Generated Graphics on a Coordinate Plane
- Graph Paper
- Graphic Aid for Mathematics
25Geometric Manipulatives
- 2-D Manipulatives
- Paper Folding
- 3-D Manipulatives
- Nets
26Thoughts on Visual vs Tactual Perception
- 1. Visual impairment is not an isolated
condition it affects the whole process of
information-gathering. - 2. Vision enables a person to simultaneously
perceive all parts of an object in its totality
and in its relationship to other objects. - 3. The visually impaired learner has to rely on
sequential observations (only part of an object
can be seen or felt at a time) and the entire
image has to be "built-up" out of the components.
Relationships with other objects can be lost
entirely. - 4. The level of cognition needed for integration
of sequential information is higher than that
needed for concept formation through immediate
visual perception. - 5. If you have vision, you can experience this
way of processing information by looking at a
drawing through a very small hole in a piece of
card held over the drawing I think that you will
find that it's hard for you to "get the picture.
27Preparing Tactile Math Graphics
http//www.tsbvi.edu/math/tactile.htm
- Checklist To Determine If a Graphic Should Be
Brailled - Checklist For Making Decisions About A Tactile
Graphic - Basic Principles For Preparing Tactile Graphics
- Explanation-Demonstration of How Foil Graphics
are Prepared
28Math Graphics Made by Others
- APH Tactile Graphics Kit
- Collage
- APH Geometry Tactile Graphics Kit
- Tactile Imaging Machine and Capsule Paper
- Pictures in a Flash (PIAF) http//www.pulsedata.
com - Swell-Form Graphics Machine http//www.atcbrleqp.c
om - Tactile Image Enhancer
http//www.repro-tronics.com
29TTT Talking Tactile Tablet
- http//www.touchgraphics.com
30Math Graphics Made to Order by Others
- ghBraille http//www.ghbraille.com/
- LaserLine Graphics
- Tactile Vision Inc. http//www.tactilevision
inc.com/
31Tiger EmbossersTiger Pro, Tiger Max, Tiger Cub,
or Tiger Cub Jr http//www.viewplus.com NOW
3-D
- high resolution (20 dots per inch) windows
printer driver - create and emboss through MS Office, graphics
programs, AGC, mimio, Duxbury, MegaMath, and
more - faster, quieter, easier than before
- interpoint and intergraphix
- stack paper or tractor media, or both
32Teaching Students How to Read Tactile Math Graphs
- Begin at an early age
- Start with real objects
- Move to 3-D models
- Then to 2-D manipulatives
- Finally try tactile graphics on various surfaces
- Hard plastic
- Thermoformed Brailon of foil or collage
- Quick Draw or Capsule/Swell/Flexi-Paper
- Braille Paper
- Use APH Tangible Graphs to evaluate and/or
re-teach if necessary
33Selected Teaching Strategieshttp//www.tsbvi.edu/
math/teaching.htm
- Collaborative/Inclusive Strategies
- Arithmetic Calculation Using the Braillewriter
- Linear Measure, Perimeter, and Area
- Prime Factorization on the Abacus
- Standardized Braille Number Lines
- Graphing on a Coordinate Plane
- Geometric Constructions
- Transformations, Line Symmetry, and Tesselations
- Solving Quadratic Equations
34Other Math Resources
- Delta http//www.delta-education.com
- Didax http//www.didaxinc.com
- EASI Equal Access to Software and Information
for Persons with Disabilities http//www.rit.edu/
easi - Eisenhower National Clearinghouse
http//www.enc.org - ETA/Cuisenaire http//www.etacuisenaire.com
- Math Forum http//www.mathforum.org
- Science Access Project at Oregon State University
http//dots.physics.orst.edu - TAEVIS at Purdue University http//www.taevisonlin
e.purdue.edu