{"book":"adl0707","page":26,"text":"۲۱\nنزدیک بطرف سطح کتابت بقدر ۱۰ سانتیمتر میباشد\n(۵) تخته های سیاه نیز مانند چوکیها خیلی اهمیت\nدارند - حجم تخته سیاه هرقدر کلان باشد خوبست\nآویختگیش بقدر مناسب بلند از زمین سطحش افقی\nو بسیار سیاه براق باشد\nتخته سیاه\n(۶) در عملهای معمولی تباشیر سفید (چاک)\nکافی است ، ولی در رسم خریطه و رسم خط کشی که\nدر توضیح دروس اشیا بکار می آید ، و در مشق ، استعمال\nتباشیر رنگه مناسب است زیرا مشاق بتوسط\nرنگ نازکیهای پیوند حروف را نشان میدهد\nتباشیر\n(۷) تخته سیاه همیشه برای معلم مددی میرساند\nاستعمال تخته\nسیاه","chars":492,"image":"https://storage.googleapis.com/adl-page-images/adl0707/00026.jpg","first_page":1,"last_page":115,"title":"Risālah-i uṣūl-i tarbiyah barā-yi irshād-i muʻallimīn-i ibtidāʼī ... / bi-taṣvīb-i Sardār Ḥayāt Allāh Khān ; mutarjim Faqīr ʻAbd Allāh رساله اصول تربيه :رساله اصول تربيه","permalink":"https://afghanpress.org/book/adl0707/26","canvas":"https://afghanpress.org/iiif/adl0707/canvas/26","source":"https://afghanistandl.nyu.edu/books/adl0707/","source_pdf":"https://afghanistandl.nyu.edu/pdf/adl0707_download.pdf","rights":{"image":{"statement":"Public domain. NYU states: \"All works presented on this website are, unless otherwise indicated, in the public domain. The images available on this website may be freely reproduced, distributed and transmitted by anyone for any purpose, commercial or non-commercial.\"","uri":"http://rightsstatements.org/vocab/NoC-US/1.0/","holder":"New York University Libraries","source":"https://afghanistandl.nyu.edu/about.html","delivery":"Images are served from a copy mirrored by this project, not from NYU's servers, under the reproduction terms above.","endorsement":"This is an independent project. It is not affiliated with, endorsed by, or reviewed by New York University."},"text":{"statement":"Machine-generated transcription, dedicated to the public domain under CC0 1.0. No warranty of accuracy: see the provenance block on every page.","uri":"https://creativecommons.org/publicdomain/zero/1.0/","holder":"Steps Ventures"}},"provenance":{"text_produced_by":"gemini-3.1-pro-preview","thinking_level":"low","read_completed":"2026-08-09","per_page_confidence":null,"per_page_confidence_note":"Not recorded during the corpus run. No calibrated per-page score exists, and none is estimated here.","human_reviewed":false,"accuracy_context":"Roughly two thirds of characters agree with a modern printed edition of the same text. Much of the disagreement is editorial, not misreading. Treat the transcription as a finding aid and read the page image before quoting.","primary_source":"The page image. The text is an index into it."}}