1. 笔(bǐ) 画(huà) 顺(shùn) 序(xù)：Click on each character to learn its stroke orders.
(The read part is its radical.)
2. Quizlet (You can study the "flashcards", "test" and play "scatter" games, etc…)
Remember to "sign in" first. When you sign in, you need to put the age over 13 years old, or you will not permitted to play the game.