Ateacher originally wanted to increase class participation, so she positively reinforced question asking with nickels. after a few days, students had stacks of nickels on their desks, and the class was asking far too many questions. the teacher decided things were better off when the students didn't ask so many questions. to reduce question asking, the teacher has several options available to her. she could approach the students' desks and physically remove a nickel from their stacks whenever they ask a question, a process known as or, she could simply no longer give students nickels when they ask questions, a process termed

Morei would really appreciate it. his eyes snapped open. a musty smell flooded his senses. the room was lowly lit, curved with smooth light gray walls. the floor was clear black tiled. he stood up, surprised to see no door, but only a trap door on the ceiling that blended in with the walls. the room was unfurnished, which struck him as strange. as you write and revise, ask yourself these questions: 1. do all of the sentences in this paragraph belong here? (unity) 2. are all of the sentences in this paragraph in the right place? (coherence-- a method of development) 3. are all of the sentences in this paragraph smoothly connected together into a whole paragraph? (coherence--use of transitional devices) once you've made certain that your paragraphs are both unified and coherent, edit your work for problems in grammar and mechanics before submitting it to your teacher.