12. Completing Different Types of Assignments# 12.1. Completing Mathematical and Scientific Assignments 12.1.1. Overview of Mathematical and Scientific Expressions 12.1.2. Completing Mathematical Problems with Screen Readers 12.1.3. Entering Math Expressions in Assignments or the Calculator 12.1.3.1. Numbers 12.1.3.2. Scientific Notation and Metric Affixes 12.1.3.3. Constants 12.1.3.4. Greek Letters 12.1.3.5. Functions 12.1.4. Entering Math Expressions in Course Discussions 12.2. Taking a Timed Exam 12.2.1. Timed Exam Overview 12.2.2. Taking a Timed Exam 12.2.3. Hiding the Exam Timer 12.2.4. Requesting Additional Time 12.3. Proctored Exams 12.3.1. Proctored Exam Technical Requirements 12.3.2. Practice Proctored Exams 12.3.3. Proctored Exam Rules for Learners 12.3.4. Learner Rules for Online Proctored Exams 12.3.4.1. Test Environment Rules 12.3.4.2. The Computer You Use to Take the Test 12.3.4.3. Your Behavior 12.3.4.4. Additional Time or Special Allowances 12.4. Explaining Multiple Choice Answers 12.4.1. Assignment Overview 12.4.2. Completing the Assignment 12.4.2.1. Step 1. Explain Your Choice 12.4.2.2. Step 2. Review Other Initial Responses 12.4.2.3. Step 3. Revise Your Response 12.4.2.4. Step 4. Review the Correct Answer 12.4.2.5. Step 5. Compare Answers
