• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
csun 2013 math accessibilityv2.ppt
 

csun 2013 math accessibilityv2.ppt

on

  • 246 views

 

Statistics

Views

Total Views
246
Views on SlideShare
245
Embed Views
1

Actions

Likes
1
Downloads
0
Comments
0

1 Embed 1

http://www.oercommons.org 1

Accessibility

Categories

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment
  • Goal: Make it easier, faster, and cheaper to create and use accessible images so that students with print disabilities have timely access to the information they need. <br />
  • Images: Collection of complex images from CK-12 Biology I <br />
  • Image: Image of numerous complex mathematical expressions including long division, integrals, and roots. <br />
  • Image: Screenshot of Poet with Math Helper feature. In the browser window, the left hand frame contains images of mathematical expressions displayed in a column. The right hand frame is the content descriptoin frame, showing a the mathematical expression above two input boxes: one contains ascii math input by the user, the other contains MathML automatically produced by the system. <br />
  • Image: Screenshot of Web Math Trax. At the top left is an input dialog that contains an equation selector, which is a drop down menu of equations. The currently selected equation is "parabola y=ax^2+b". Below the equation selector are two input boxes for the equation parameters, a and b. a is currently set at 5, while b is set at 2. A button next to the box is labeled "recalculate." <br /> Below the dialog is a graph description box. The equation is given as y=0.5x^2 + 2.0). A box below the equation is a Description box that contains the text: "Cartesian. The X axis is labeled x. The Y axis is labeled y. x = -10.0 to 10.0 and y= -10.0 to 10.0. Equation(s) provided: y= 0.5*x^2 + 2.0. A parabola. It opens upwards.” <br /> To the right of the dialog boxes is a graph that fills the remainder of the screen. It displays the parabola described. <br /> Three additional buttons on the bottom left read "Print Graph," "Print Description," and "Save Graph." <br />
  • Tool can also help users create MathML ; integrate into poet? <br />
  • Image: Posed group photograph of 40 members of DIAGRAM advisory board and working group members at annual meeting. <br />

csun 2013 math accessibilityv2.ppt csun 2013 math accessibilityv2.ppt Presentation Transcript

  • DIAGRAM Center & Developments in Math Accessibility CSUN, San Diego – March 1, 2013
  • DIAGRAM Center ● Make it easier, faster, and cheaper to create and use accessible – Tools – Standards – Research & Training – Strong community of content and technology creators and users ● 5-year Research & Development Center funded by the U.S. Department of Education, Office of Special Education Programs (OSEP) ● Awarded to Benetech along with partners: – The Carl and Ruth Shapiro Family National Center for Accessible Media (NCAM) at WGBH – U.S. Fund for DAISY Page 2
  • ● STEM Image Accessibility is Challenging Page 3
  • What We’ve Done So Far ● Tools: – Poet: A Web based Tool for Creating Image Descriptions – Image Accessibility Coverage Checker for DAISY Books – Tobi integration: DAISY tool for multi-media production ● Standards: – DIAGRAM Content Model: data model for providing image metadata, including accessible alternatives ● Research and Training: – Training webinars, product evaluations, surveys – http://diagramcenter.org Page 4
  • DIAGRAM and Math ● Improving access to math is among our goals ● Community with strong math expertise ● DIAGRAM Math Working Group ● Exploring some core math challenges. . . Page 5
  • Math Accessibility Challenge #1 Mathematical expressions are often presented as images in textbooks. Page 6
  • The Case for MathML ● Normalized, unambiguous expressions that can be rendered or transformed in many different ways ● Standard gaining traction globally ● NIMAS recommends: ...MathML be used to improve the accessibility of mathematical and scientific content in core instructional materials ...as the most effective method of providing accessible print instructional materials involving mathematical and scientific content to students who are blind or who have print disabilities. Page 7
  • Math Accessibility Challenge #2 MathML can be difficult and expensive to tag. Page 8
  • Poet Image Description Tool ● Open source, web-based tool for adding image descriptions to eBooks (DAISY) ● For use by authors, publishers, accessibility providers ● Designed to: – Quickly identify all images in an eBook – Allow tagging of “essential” images – Create and edit descriptions by multiple authors – Moderate and approve descriptions – Enable crowd-sourcing Page 9
  • Math Helper in Poet Tool Converts ascii math input into MathML Page 10
  • Math Accessibility Challenge #3 Math diagrams, graphs, and other related images can also benefit from multi-modal accessibility. Page 11
  • In Beta: Web MathTrax ● Web-based version of NASA’s MathTrax graphing calculator ● Select a shape or equation, input parameters and receive back – Automated text description of resulting graph (developed with experts) – SVG of resulting graph to facilitate tactile production ● Gives content creators accessible images for common graphs ● Pilot targets automated text descriptions for first year algebra Page 12
  • Web Math Trax Page 13
  • Math Accessibility Challenge #4 It’s difficult to author math in an accessible manner (e.g., how to show work for an online course)? Page 14
  • WAVES ● DIAGRAM subcontract with gh, LLC to tackle this issue ● Dave Schleppenbach will cover in his talk Page 15
  • Math Accessibility Challenge #5 Even with underlying MathML, math can be difficult to render effectively and to navigate. Page 16
  • Voicing MathML via MathJax ● Experimental only ● Leveraging MathJax makes it available to more users ● Benetech project via Google Summer of Code ● Project uncovered lots challenges ● Demo available at http://benetech.github.com/mathjax/ Page 17
  • Math Accessibility Challenge #6 Training and research is required to help educators, publishers and others create effective accessible math. Page 18
  • DIAGRAM Training and Research in Math ● DIAGRAM webinars: http://www.diagramcenter.org/standards-andpractices/training.html – “I’m using it TODAY to get math instructors excited about accessibility resources and creating lab manuals as accessible eBooks!” ● MathML support chart in DIAGRAM Product Matrices: http://diagramcenter.org/research/product-matricescomplete.html ● Collaboration with MeTRC to study effectiveness of math description Page 19
  • Other Emerging Math Tools from the DIAGRAM Community ● LEAN Math (John Gardner, ViewPlus) ● Stanford SCRIBE (Sean Keegan, Stanford) ● Voicing MathML – iBooks Author and VoiceOver on iPad Page 20
  • For More Information JOIN THE COMMUNITY AND THE CONVERSATION! ●http://diagramcenter.org ●http://benetech.org Anh Bui Director of Product Strategy and the DIAGRAM Center Benetech anhb@benetech.org Page 21