The following series of videos is pretty good at teaching people the basics on how to write Arabic. It's how I learnt how to write Arabic script.
Arabic has 28 letters (plus three tiny symbols - fatHa, Damma, kasra - that represent the three short vowels).
Arabic is obligatory cursive (letters must be joined up, except for crosswords). Each letter has a beginning, middle and end form, although six letters - alef, waw, ra, zay, dal, dhal - have only two forms, the end and middle forms are the same because these 6 don't connect to the following letter in a word.
https://www.youtube.com/watch?v=2RcgfyuBlz8&list=PLR0I0Z-Ey9jFLir6bs8kJChIbSAXLzrly&index=1
The first words I wrote in Arabic were bint and bayt, too.