The difference of シ(shi) and ツ(tsu)
Some people who study Japanese have same question about difference
of シ(shi) and ツ(tsu). So I write here the advice about it. Before writing Katakana, please try to write big し(shi)and つ(tsu)in hiragana. After that, please try to write katakana on it. I mean the 3 lines of シ(shi)start from same virtical line. The start points of 3 lines are from same virtical lines of し. Then 3 lines of ツ(tsu)start from same horizontal line. The start points of 3 lines are from same horizontal line of つ. I'm sorry for my terrible English. I hope this advice helps your study.