Assistant principals help school principals with general administrative tasks. These vary from district to district and even school to school, but broadly fall into the areas of planning, coordinating services and maintaining order.n order to become an assistant principal, your surest path is to accumulate teaching experience and then earn a master's degree in education leadership or education administration.
Causes of a ruptured, or perforated, eardrum may include: 1  Middle ear infection (otitis media). 2  A middle ear infection often results in the accumulation of fluids in your middle ear.3  Pressure from these fluids can cause the eardrum to rupture. Foreign objects in your ear. 2  Small objects, such as a cotton swab or hairpin, can puncture or tear the eardrum. 3  Severe head trauma. 4  Severe injury, such as skull fracture, may cause the dislocation or damage to middle and inner ear structures, including your eardrum.
Perforation of the eardrum by an injury causes sudden severe pain, sometimes followed by bleeding from the ear, hearing loss, and noise in the ear (tinnitus). The hearing loss is more severe if the chain of ossicles has been disrupted or the inner ear has been injured.