Adult Section
 In fact, there is no independent pronunciation of the letter "Alif", but it is merely an extension of the sound with the opening of the mouth when the letter "Alif" sticks to another letter like "Ba'a for exemple 

Explanatory video

Children Section
بضائع منوّعة

Get to know the "Alif" with Elmo:

Nashid about the letter "Alif":

Examples and exercises about the letter "Alif":

Animation series about the letter "Alif":

Print and color the image that starts with the letter “Alif”: Assad (أسد)