The Katakana kana is the same as Hiragana, besides its use. Rather than be used on a daily basis for native words, it is used *mostly* for foreign words. An example of an exception, is Katakana being used for the word "ramen" more commonly rather than Hiragana.
The first five Katakana, representing the raw vowel sounds.
The pronunciation is the same
The a is pronounced like the a in "account"
The i is pronounced like the ee in "teeth"
The u is pronounced like the oo in "oops"
The e is pronounced like the e in "egg"
& the o is pronounced like the o in "moth"
[Character] [How to write] [The vowel in roman lettering] [An idea on how to memorize it]
The stroke order for characters in Japanese is very important, which is why memorizing them is crucial.