The use of the word point here can be understood in two different ways, which basically end up meaning the same thing in the context of a textbook:

• A particular place in a route (where one can stop, for example).
• In photography point is the focal point where the picture is the neatest.

Language textbooks often have particular pages at regular intervals in their units that focus on a particular topic in some areas, often grammar and culture.

For example the FLE¹ textbook Alter ego has a point culture that “give information with a sociocultural content through the use of texts and activities.”

The equivalent in EFL² textbooks is often called “Focus on …” which retains the aspect of the focal point but does not reflect the idea of the place where you make a stop on the way.

<sup>1. FLE: Français langue étrangère
2. EFL: English as a Foreign Language.</sup>