Three short articles about mathematics and science braille are provided for braille transcribers and teachers of the visually handicapped. The first article discusses the differences between the rules for English textbook format and the Nemeth Braille Code (for mathematics, science, and notation) format in transcribing the mathematical section of a standardized test. Important points to remember are listed, and examples of mathematics problems in braille are presented. The second article deals with identifying types of fractions and presents examples of simple, complex, and hypercomplex fractions. The third article clarifies common misunderstandings concerning when to use Nemeth Code as opposed to the English Braille Code in transcribing texts. Specific examples are given of instances when Nemeth Code should be used as the primary code. (LH)