Research shows that teacher effectiveness is the single most important school-based factor in student success. Students who have highly effective teachers for three years in a row will score 50 percentile points higher on achievement tests than students who have less effective teachers three years in a row (Sanders & Rivers, 1996).
A cuticle /ËkjuËtÉªkÉl/ , or cuticula, is a term used for any of a variety of tough but flexible, non-mineral outer coverings of an organism, or parts of an organism, that provide protection. Various types of cuticle are non-homologous, differing in their origin, structure, function, and chemical composition.
2. cuticle-the outer layer of the skin covering the exterior body surface of vertebrates. epidermis. cutis, skin, tegument-a natural protective body covering and site of the sense of touch; your skin is the largest organ of your body. epidermal cell-any of the cells making up the epidermis.. cuticle-the outer layer of the skin covering the exterior body surface of vertebrates. epidermis. cutis, skin, tegument-a natural protective body covering and site of the sense of touch; your skin is the largest organ of your body. epidermal cell-any of the cells making up the epidermis.