Can you help me?

Each child is different.   For writing it is more a fine motor skill as is drawing.  He may not be emotionally mature enough to sit still for lessons.  I am presuming they do alot of learning through play for this age, i hope.  You can always get him evaluated for any speech or motor delays.  My dd is very book smart and knew alot of things her classmates did not in kindergarten but she had issues with sitting still and the writing exercises.    

To encourage him to practice his writing skills, fill a shallow pan with sugar, salt or flour.  Allow him to use his fingers or a straw to write letters in it. 

Flash cards are very boring to a child and i dont blame them.   Perhaps try starfall.com with him so that he can see how exciting the letter sounds are.

Quoting frndlyfn:

Each child is different.   For writing it is more a fine motor skill as is drawing.  He may not be emotionally mature enough to sit still for lessons.  I am presuming they do alot of learning through play for this age, i hope.  You can always get him evaluated for any speech or motor delays.  My dd is very book smart and knew alot of things her classmates did not in kindergarten but she had issues with sitting still and the writing exercises.    

To encourage him to practice his writing skills, fill a shallow pan with sugar, salt or flour.  Allow him to use his fingers or a straw to write letters in it. 

Flash cards are very boring to a child and i dont blame them.   Perhaps try starfall.com with him so that he can see how exciting the letter sounds are.

 IMO he's still very young, he sounds very smart by what he's doing already. I wouldn't put so much pressure on him. I'm sure he'll come around. Is your 5 year old a girl or boy. Sometimes girls are quicker to pick up the writing and reading thing.

Quoting robyann:

 IMO he's still very young, he sounds very smart by what he's doing already. I wouldn't put so much pressure on him. I'm sure he'll come around. Is your 5 year old a girl or boy. Sometimes girls are quicker to pick up the writing and reading thing.

He is three years old, not thirty.  He would rather play...that's a normal three year old.  He doesn't have a problem.  

I agree with the others.  He's only three.  Let him be a child.  There's plenty of time for him to learn to draw his letters and color inside the lines.  He sounds like an intelligent child and he'll be fine.  He'll let you know when he's ready to "advance."  Best of luck to you!