Ggb-worksheet contains 3 grafics and many input- / output- texts .[br]To handle it some width is necessary so it is not convenient for small screens. [br][br][br]2 versions are added:[br][br]A "big-one": formatted about 16:9 with he title "Seasons and the sun big"[br]and a "smaller" : optimized formatted about ca. 4:3 with he title "Seasons and the sun - small".[br]Both can be downloaded to run as Ggb-file directly in Geogebra-program