How to Help Your 6th Grader Learn New Math Terms. There tends to be a shift in the focus of math curricula from 5th grade to 6th grade. In 6th grade, students are introduced to new concepts, including ratios, proportions and statistics. Similarly, they begin to learn algebraic expressions like solving for a variable and exponents.
A flyback transformer (FBT), also called a line output transformer (LOPT), is a special type of electrical transformer. It was initially designed to generate high voltage sawtooth signals at a relatively high frequency.he flyback transformer is used in the operation of CRT-display devices such as television sets and CRT computer monitors.
An autotransformer (sometimes called autostep down transformer) is an electrical transformer with only one winding. The  auto  (Greek for self) prefix refers to the single coil acting on itself and not to any kind of automatic mechanism.ecause it requires both fewer windings and a smaller core, an autotransformer for power applications is typically lighter and less costly than a two-winding transformer, up to a voltage ratio of about 3:1; beyond that range, a two-winding transformer is usually more economical.