Try to look at the word and click on the TONIC syllable

Read the tutorial on accent marks and  do the exercises here.

Look at the words and try to decide if the word needs an accent or not

Take the quiz to see if you understand which word needs an accent

Excellent tutorial on accents and when you need them.

These are the basic rules for when to put an accent on a word

One syllable words usually don't have an accent except to distinguish  two similar monosyllabic words from each other.