PT Journal AU Hrabi, L TI Biology textbooks of FRAUS publishing company and their text difficulty SO e-Pedagogium PY 2009 BP 31 EP 37 VL 9 IS 1 DE Biology textbooks; text difficulty; syntactic factor; semantic factor AB This article presents knowledge of the text difficulty evaluation of biology textbooks of Fraus publishing company . The text analysis was realized by my own methodology. Obtined results show that text difficulty is similar in studied textbooks - from 30.1 points to 34.16 points. It indicate these textbooks into the same scale of difficulty, characteristic for sixth grade of education. ER