How use is and are?
Italki Points are a incentive system that we are currently developing.
italki Points is an experimental feature.
A wood or woods is a fairly large area of trees growing near each other.

Question

How use is and are?
Italki Points are a incentive system that we are currently developing.
italki Points  is an experimental feature.
A wood or woods is a fairly large area of trees growing near each other.

Answer

Italki Points are a incentive system that we are currently developing. - this sentence is referring to the points themsevles, therefore plural & "are".

italki Points is an experimental feature. - this sentence is referring to the feature "italki Point", therefore singular & "is".

But yes, it is confusing the way it's worded.

Answer

Is usually is singular, and are plural.

The colombian girl is really pretty
The colombian girls are really pretty