PT Journal AU Hrabi, L TI Natural Science Textbooks for the Fifth Grade and Their Text Difficulty SO e-Pedagogium PY 2010 BP 28 EP 33 VL 10 IS 1 DI 10.5507/epd.2010.004 DE Natural science textbooks; syntactic factor; semantic factor; text difficulty AB This article presents knowledge of the text difficulty evaluation of six current Czech natural science textbooks for the fifth grade. The text analysis was carried out by Prucha's modified method. Results indicate that text difficulty is similar in four studied textbooks (28 points). They are books of these publishing companies - Alter, Fortuna, Prodos, SPN, which can be used in fifth grade of education. ER