Proof & Plain
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Accessible STEM course materials

Equations that read aloud correctly.

We convert textbooks, problem sets and lab manuals so screen readers speak every equation the way it is written, every graph has a description, and every table reads in order.

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On the page

x=−b±b2−4ac2a

Spoken by a screen reader

“x equals the fraction: negative b plus or minus the square root of b squared minus 4 a c, over 2 a.”

The quadratic formula, written in MathML. Exact speech depends on the screen reader.

1.1Why math needs its own treatment

Real math markup

MathML, not pictures

An equation saved as an image is silent to a screen reader. We rebuild it as MathML, so it can be spoken, navigated and enlarged.

Graphs and figures

Descriptions that teach

Alternative text that says what a graph shows, not just that a graph is there.

The deadline

April 26, 2027

Public colleges fall under the ADA Title II web rule. For state institutions, the compliance date is April 26, 2027.

1.2Prices

Proof & Plain prices
ServicePriceTurnaround
Free sample: one section (up to 8 pages) of your own material$03 business days
Text pages: headings, lists, simple tables, images with alt text$6 a page5 business days per 100 pages
Math-heavy pages: equations, graphs, multi-level tables$10 a page5 business days per 100 pages
One chapter, flat rate (up to 40 pages, any mix)$3505 business days
Whole open textbook, up to 300 pages (extra pages at the per-page rates)$2,40020 business days

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1.3What you get with every order

  • Accessible HTML with MathML for every equation
  • A tagged PDF that follows the same reading order
  • Alternative text for every figure and graph
  • A one-page check report: automated PDF/UA and HTML accessibility checks, plus a manual review of reading order, alt text and equation speech

See a before-and-after lesson

About Proof & Plain

Proof & Plain makes math and science course materials readable by everyone. We convert textbooks, problem sets and lab manuals so screen readers speak every equation correctly, every graph has a description, and every table reads in order.

AI tools help us do the conversion, and a person reviews and approves every file before it goes back to you.

Proof & Plain is a Lincoln & Main Services business, based in Denver, Colorado.

Convert one section free

Tell us about the course material. We reply within one business day with where to send it.

Or email hello@proofandplain.com.

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