What is the suggested pattern on paper to learn handwriting?
On the web, I've found many kind of paper, such as those named
田字格 tiánzìgé, etc.
I've got a book of chinese characters in which some characters are displayed on a
九宫格 jiǔgōnggé pattern while other characters are on a
米字格 mǐzìgé pattern.
I wonder which one should be preferred (if any), or if different characters suit better on certain patterns. Which paper is used by children at school, for example?