**Previous message:**Lloyd G. Rasmussen: "Auditory/Tactile Display Tools for MATLAB (SKDtools)"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

This is long. But it is how some students at the Texas School for the

Blind are doing their algebra. It's perhaps not easy or fun, but it's doable.

*>Date: Thu, 8 Nov 2001 15:53:50 -0600
*

*>From: Susan Osterhaus <osterhauss@TSBVI.EDU>
*

*>Subject: Maths & Science software for VI
*

*>To: EASI@MAELSTROM.STJOHNS.EDU
*

*>
*

*>Since I last wrote, my Algebra II students and I have been experimenting.
*

*>We have been working with matrices using Scientific Notebook and JAWS. For
*

*>example, we've been able to come up with a technique to solve systems of
*

*>equations and find regression lines with a little bit of help (fastest
*

*>method) or totally independently (via a slower method). (You may prefer to
*

*>try voice recognition software from Metroplex Voice Computing. See contact
*

*>information below.)
*

*>
*

*>SAMPLE PROBLEMS:
*

*>1. Solve the system
*

*>2x+3y+z=13
*

*>5x-2y-4z=7
*

*>4x+5y+3z=25
*

*>Open JAWS. Open Scientific Notebook (SN). Enter Alt I. Select Matrix. Tab
*

*>through columns and rows and select 3x3. Enter 2, tab, enter 3, tab, enter
*

*>1 tab, etc (i.e. the coefficients of each variable). When the matrix is
*

*>filled, hit space bar once. Then enter Alt I. Select Matrix. Select 3x1.
*

*>Enter x, tab, enter y, tab, enter z. Hit space bar once. Enter =. Enter Alt
*

*>I. Select Matrix. Select 3x1. Enter 13, tab, enter 7, tab, enter 25 (i.e
*

*>the constants). Hit space bar once. Enter Alt M. Select Solve, and then
*

*>Exact. The solution appears as a 3x1 matrix with entries 3, 2, and 1. Shift
*

*>left arrow will read the three answers correctly this time. However, if any
*

*>of the numbers were negative, it would not read the negative. If any of the
*

*>numbers were a fraction, it would not read them as such. For example, 1/2
*

*>would be read as "one, two." The fastest method would be to simply ask a
*

*>sighted person to read the screen. However, the student can print a print
*

*>copy for the math teacher either one problem at a time or after the entire
*

*>assignment is completed. Before or after printing the print copy, the
*

*>student can save the SN file and bring the file up in DBT WIN 10.3 via the
*

*>LaTeX importer and then translate it. The formatting is awful (Duxbury has
*

*>informed me that they will not be fixing the table, chart, matrix, etc.
*

*>formatting problems at this time.); however, the student can scan through
*

*>the mess and find the words "Solution is: 3, 2, 1." Alternatively, the
*

*>student may wish to use the Nemeth filter from MAVIS at NMSU.
*

*>
*

*>2. Find an equation of the regression line given certain data points. Then
*

*>graph it.
*

*>Open JAWS. Open Scientific Notebook. Enter Alt I. Select Matrix. Tab
*

*>through columns and rows and select #x2, where # stands for the number of
*

*>points + 1. For example if you had 7 data points, you would select an 8x2
*

*>matrix. Enter x tab y and then all of the data points (making a "T" or data
*

*>table). When the data table (matrix) is filled, hit space bar once. Enter
*

*>Alt M. Select Statistics. Select Fit Curve to Data. Select last column for
*

*>the dependent variable and Mutiple Regression (default). The regression
*

*>line equation appears. Again, JAWS will not read the regression line
*

*>equation correctly. At this point, the student can ask a sighted person to
*

*>read the equation, print the equations out, or translate through DBT WIN
*

*>10.3. After the regression line equation is determined, it should be
*

*>entered into the Accessible Graphing Calculator and graphed. The graph can
*

*>be printed in print for the math teacher, printed with a braille font and
*

*>copied onto swell paper and run through a tactile imaging machine, embossed
*

*>on a TIGER Advantage embosser, and/or the student can listen to the
*

audiowave.

*>
*

*>If you are freaking out at this point, thinking that you or your students
*

*>could never do all this, my students are doing it. My most proficient
*

*>student is only a sophomore. He can also solve systems manually using the
*

*>graphing, substitution, and linear combination method. He liked four out of
*

*>the five methods I showed him; he didn't like using Cranmer's Rule. You can
*

*>also perform other operations on matrices using JAWS and Scientific
*

*>Notebook with similar techniques. Contact information for the
*

*>math/translation software mentioned follows:
*

*>
*

*>MacKichan Software, Inc.
*

*>600 Ericksen, Suite 300
*

*>Bainbridge Island, WA 98110
*

*>Phone: 1-877-SCI-NOTE
*

*>Fax: 1-206-780-2857
*

*>E-mail: info@mackichan.com
*

*>Website: http://www.mackichan.com
*

*>With Scientific Notebook, create attractive documents with text,
*

*>mathematics, and graphics, have it compute the solutions, import data from
*

*>your graphing calculator, connect to the Internet and download documents,
*

*>then translate to Nemeth Code and/or convert to large print. (See MAVIS.)
*

*>
*

*>Mathematics Accessible to Visually Impaired Students (MAVIS)
*

*>Chris Weaver, MAVIS Program Coordinator
*

*>New Mexico State University
*

*>Math Department MSC 3MB
*

*>P.O. Box 30001
*

*>Las Cruces, NM 88003
*

*>Phone:(505) 646-2664
*

*>Fax: (505) 646-1064
*

*>Email: chrweave@nmsu.edu
*

*>Website: http://www.nmsu.edu/~mavis
*

*>Nemeth Code filter that translates Scientific Notebook documents containing
*

*>mathematics to Nemeth Code. "The fast production of Scientific Notebook
*

*>files on a Braille embosser means that visually impaired students can
*

*>obtain class handouts, syllabi, exams, and other course materials in the
*

*>sciences in real time. And it means that institutions can comply more
*

*>easily with federal disability regulations." (see MacKichan Software, Inc.)
*

*>
*

*>ViewPlus Software, Inc.
*

*>Business Enterprise Center
*

*>Contact Person: Carolyn Gardner
*

*>800 NW Starker Avenue
*

*>Corvallis, OR 97330
*

*>Phone: (541) 754 4002
*

*>Fax: (541) 738 6505
*

*>E-mail: vps@ViewPlusSoft.com.
*

*>Website: http://www.viewplussoft.com/
*

*>The Accessible Graphing Calculator is a self-voicing graphing scientific
*

*>calculator program. Unlike a hand-held calculator, it displays results
*

*>through speech and sounds, as well as visually presenting numbers and
*

*>graphs. Braille graphics can be created directly via the TIGER embosser
*

*>(See ViewPlus Technologies, Inc.) or indirectly using a tactile imaging
*

*>machine.
*

*>ViewPlus Technologies, Inc.
*

*>
*

*>Metroplex Voice Computing
*

*>P.O Box 121984
*

*>Arlington, TX 76012
*

*>Phone: (817) 261-1658
*

*>Fax: (817) 543-1103
*

*>E-mail: mathtalk@onramp.net
*

*>Website: http://www.metroplexvoice.com
*

*>Speech recognition software products including several mathematics programs.
*

*>MathTalkProTM - runs Scientific NotebookTM with over 2,000 voiced commands.
*

*>MTP is for all levels of math. Scientific Notebook includes MapleTM and
*

*>graphing capabilities. For more details on Scientific Notebook, (see
*

*>MacKichan Software, Inc). MathTalkPro will be available with an optional
*

*>Nemeth Code Converter© that translates the mathematics into Braille (See
*

*>MAVIS ).
*

*>
*

*>Susan
*

*>
*

*>At 12:40 PM 10/31/2001 +1000, you wrote:
*

*>>Hello to all,
*

*>>
*

*>>I have finally subscribed to the main EASI list after being on the EASI-SEM
*

*>>list for some time. After generating a little discussion a couple of months
*

*>>ago, that list now seems to have been wound up. I am copying, below, a
*

*>>message I tried to send to that list a week or two back, and hope that it
*

*>>reaches not only those with whom I have recently communicated on the
*

*>>easi-sem list, but also others who may have some interest and experience in
*

*>>this particular area.
*

*>>
*

*>>By way of a brief intro, I work as an education adviser in the area of
*

*>>assistive technology for students with vision impairment, employed by
*

*>>Education Queensland, Australia, and am blind myself. I have been with the
*

*>>Ed Dept for twenty years, but spent the first fifteen of those as a music
*

*>>specialist and music therapist. The main AT I use is JAWS for Windows, Open
*

*>>Book and a Braille Lite 40.
*

*>>
*

*>>Now, to the main subject of this message: --
*

*>>..
*

*>>.
*

*>>I promised to get back to the list after our two week vacation period.
*

*>>Unfortunately, more pressing work requirements have kept me from getting my
*

*>>head back around this subject.
*

*>>
*

*>>I still haven't received much feedback from one or two folk trialing
*

*>>programs such as the AGC (Accessible Graphing Calculator) with students and
*

*>>it looks like our little special interest group/working party will not
*

*>>manage another workshop session this year. With our Summer vacation looming
*

*>>and some extended leave I'm taking from Mid
*

*>>November, time is running out fast for 2001.
*

*>>
*

*>>However, if anyone still wants to keep things simmering along, or has any
*

*>>new discoveries re using software such as Scientific Notebook or MathType
*

*>>Editor with screen readers such as JAWS or WindowEyes, or has had experience
*

*>>with using Accessible Graphing Calc with high school students, I'd still
*

*>>love
*

*>>to hear from you.
*

*>>
*

*>>Hoping to be in touch and able to share more again soon.
*

*>>
*

*>>Regards,
*

*>>Tom.
*

*>>
*

*>>Tom Macmahon
*

*>>Education Adviser
*

*>>Adaptive Technology Services
*

*>>Low Incidence Unit, Education Queensland
*

*>>141 Merton Road
*

*>>WOOLLOONGABBA, Q 4102
*

*>>AUSTRALIA.
*

*>>Ph: 61/7 3240-9360
*

*>>Fax: 61/7 3240-9300
*

*>>Web: http://education.qld.gov.au/tal/liu/
*

*>>Email: tom.macmahon@qed.qld.gov.au
*

Braille is the solution to the digital divide.

Lloyd Rasmussen, Senior Staff Engineer

National Library Service f/t Blind and Physically Handicapped

Library of Congress (202) 707-0535 <lras@loc.gov>

<http://www.loc.gov/nls>

HOME: <lras@sprynet.com> <http://lras.home.sprynet.com>

**Previous message:**Lloyd G. Rasmussen: "Auditory/Tactile Display Tools for MATLAB (SKDtools)"**Messages sorted by:**[ date ] [ thread ] [ subject ] [ author ]

*
This archive was generated by hypermail 2b29
: Sat Mar 02 2002 - 01:40:46 PST
*