narrow the topic
They help you narrow your topic.
It all depends on your own opinion, but the easiest for me is to focus on your magic and sword focus points for eragon, magic for brom, and put half of Arya's focus points into her magic.
many towns in Ireland are located at bridge points on rivers. this is because bridge points become a route focus. ( crossing points in other words)
The foci (plural of focus, pronounced foh-sigh) are the two points that define a hyperbola: the figure is defined as the set of all points that is a fixed difference of distances from the two points, or foci.
The Xbox LIVE Points don't serve a very large purpose. Their main purpose is for the person who has the most points to be able to have bragging rights, and for them to get certain privileges.
narrow the topic
During a lecture you should focus on the main points and any information you need to understand the main points. You should also think about questions you might have about the main points.
forming a conclusion
guide and focus your reading.
The two central points of an ellipse are officially known as the foci (plural of focus).
her focus on finding a purpose to the pattern in the wallpaper
Focus light onto the film
The main purpose of a laser is to focus electromagnetic radiation (light) on to a single point.