Disease Categories. Electrical: Abnormal heart rhythms (arrhythmias) are caused by problems with the electrical system that regulates the steady heartbeat. The heart rate may be too slow or too fast; it may stay steady or become chaotic (irregular and disorganized).lectrical: Abnormal heart rhythms (arrhythmias) are caused by problems with the electrical system that regulates the steady heartbeat. The heart rate may be too slow or too fast; it may stay steady or become chaotic (irregular and disorganized).
Typing on a Computer Keyboard. For some students, learning to type on a computer can be as difficult a task as learning to write with a pencil. Students with good fine motor skills are often better at mastering this particular skill. Typing requires coordinating finger movements and memory skills. A student must first remember where the letters, numbers, and symbols are located on the keyboard.
When each keystroke has been mastered, the beginner can move on to more detailed typing. 1  Lesson 1: Home Row, Left Hand. 2  Keyboard Tutorial. 3  Keyboarding Skills. 4  Dance Mat Typing. 5  Keyboarding Games for Beginners. 6  Typing Keyboard Tutorial (QWERTY) 7  Keyboarding & Typing Tips. 8  Keyboarding Essentials. 9  Multimedia Keyboard Training.