Digital textbooks should follow the basic principle of "every editing must be reviewed"
News from this newspaper (Reporter Zhang Nan) The first batch of national standards for digital textbooks for primary and secondary schools will be implemented on November 1, 2022.
According to the requirements of the new standard, the length of a single video in digital teaching materials is "limited", which should not exceed 20 minutes in primary school and 25 minutes in middle school.
And digital textbooks should be "reviewed for all editors", and have higher publishing quality requirements than general online publications.
Since 2017, new policies in the construction of teaching materials, education informatization, and prevention and control of myopia in children and adolescents have appeared frequently.
The State Administration for Market Regulation and the National Standardization Administration have recently approved the release of three items: "Metadata of Digital Textbooks for Primary and Secondary Schools", "Quality Requirements and Testing Methods for Digital Textbooks for Primary and Secondary Schools in Digital Textbooks", and "Basic Process for Publishing Digital Textbooks for Primary and Secondary Schools in Digital Textbooks". Recommended national standard.
Digital textbooks for primary and secondary schools for minors have higher publishing quality requirements than general online publications.
For this reason, the "Quality Requirements and Detection Methods of Digital Textbooks for Primary and Secondary Schools in Digital Textbooks" proposes that digital textbooks should not have data corruption, abnormal error reports, and inability to open.
At the same time, the error rate is strictly required.
Among them, the text error rate should be ≤0.0025%, and the error rate of pictures, images, audio and video should all be ≤0.005%, and the interactive content should have no logical errors and no major content errors.
In order to prevent and control young people's myopia, the new standard specifically stipulates whether digital teaching materials can be "see clearly" on personal learning terminal display devices and classroom large screens.
For example, on the display device of the personal learning terminal, the text content of the first and second grades of compulsory education should have the largest display size, with a printing effect of ≥16P characters, and the text line space should be ≥5 mm; , The text content of high school text, the display size of the words should be ≥12P word printing effect.
The digital teaching materials displayed on the large screen in the classroom have larger words and larger spaces between the words.
Among them, the text content of the first and second grades of compulsory education should be displayed on the screen with a display effect of ≥28P words; the text content of the fifth to ninth grades of compulsory education and senior high school should be displayed on the screen. The effect should be ≥21P words.
Not only that, except for pictures and images of historical information, the display resolution of pictures and images in digital textbooks should be no less than 720 pixels, and there should be no serious distortion problems such as obvious distortion and blur.
The video picture quality is required to be clear, without obvious picture flickering, jittering, freezing, too bright or too dark.
The new standard specifically limits the video duration.
Among them, the content of a single video should not exceed 20 minutes in primary school and 25 minutes in middle school.
Different from general publications, primary and secondary school textbooks have statutory special publication process requirements.
For this reason, the "Basic Process for Publishing Digital Textbooks for Primary and Secondary Schools in Digital Textbooks" proposes that review and approval are legal steps that should be carried out before the official publication and release of digital textbooks for primary and secondary schools, as well as a necessary process to ensure the political nature of digital textbooks. The basic principle of "must review".