RT Journal Article SR Electronic A1 Hrabí, Libuše T1 JF e-Pedagogium YR 2002 VO 2 IS 2 SP 19 OP 25 UL https://e-pedagogium.upol.cz/en/artkey/epd-200202-0003.php AB This article contains knowledge about evaluation of the text difficulties of six present Czech biology textbooks for the seventh year of the primary education. The evaluation methods were realized according to Průcha. Obtained results show - the textbook of Jinan publishing company and the textbook of Scientia publishing company were not as difficult as the others (text difficulties made 26,42 points and 29,04 points). The density of the scientific information achieved similar values: 24,43 % and 25,46 %.