According to my research, punctuation is part of “mechanics”. If so, is it redundant to say, “punctuation and mechanics”?
I do see many instances of people using “punctuation and mechanics”. For instance, I came across an article written by an English professor entitled “Common Mistakes of English Grammar, Mechanics, and Punctuation”. If punctuation is indeed part of mechanics, then this title itself would be a mistake ironically.
We (i.e. the creators of Pain in The English) developed a series of iPhone apps to teach preschool kids how to recognize letters and words. (My wife developed the characters and I did the coding.) Our own 4-year old daughter has been enjoying them. They are now available on Apple's App Store. You can search for "bitskis" on your iPhone, or visit the official website at bitskis.com.
If you have kids and own an iPhone, please check it out. It's $2.
it all depends how you define mechanics.