At the end of a session composed of several shots, you will be given a score computed according to the average precision of your shots during the session.

Choose a level of difficulty to start your exercise: 1 , 2 , 3 , 4 , 5 .

There is also a
detailed menu for the parameters of this exercise.
The most recent version

Please take note that WIMS pages are interactively generated; they are not ordinary HTML files. They must be used interactively ONLINE. It is useless for you to gather them through a robot program.

- Description: shoot at the focus in the picture of a parabola WIMS site
- Keywords: interactive mathematics, interactive math, server side interactivity, geometry, parabola, focus