To search for a film by school subject, click on EDUCATION in the left side menu of the main page. Then, click on MORE RESOURCES in the options at the top of the page and select School Subjects from the dropdown menu. 

Once on the School Subjects page, you will have access to a wide range of subjects and sub-subjects. You can also narrow down your search results by age groups. To do this, select a subject followed by a sub-subject. 

A list of films related to the selected sub-subject will appear. At the top of the page, you will find the age selection bar. You can slide the cursors on the bar to refine the list of films according to the age group that corresponds to your class.