- The 1st tone is marked with a line ("a" + "-" = "ā"). This is a high, even, and constant tone.
- The 2nd tone is marked with a rising line ("a" + "´" = "á"). This is a rising tone that grows stronger.
- The 3rd tone is marked with a hook ("a" + "v" = "ă"). This tone is first falling and fading, then rising and growing strong.
- The 4th tone is marked with a falling line ("a" + "`" = "à"). This is a quickly falling and fading tone. Try to make it strong, hard, and fast.
Tone drill: http://www.shufawest.us/language/tonedrill.html
If you are interested in learning pinyin, Wikipedia online has a lot of information for you.
Wikipedia: http://en.wikipedia.org/wiki/Pinyin



