Karel The Robot A Gentle Introduction to the Art of Programming [Paperback]

Uses a creative approach to teach the basic skills and concepts of programming quickly. This edition offers excellent insights into problem solving and program design processes. It will also improve comprehension of such computer science considerations as loop invariants and recursion. Includes 60 color line drawings.Chapter 1. The Robot World 1

1.1. Karel's World 1

1.2. Karel's Capabilities 3

1.3. Tasks and Situations 4

1.4. Problem Set 6

Chapter 2. Primitive Instructions and Simple Programs 7

2.1. Changing Position 7

2.2. Handling Beepers 9

2.3. Finishing a Task 9

2.4. A Complete Program 10

2.5. Error Shutoffs 13

2.6. Programming Errors 14

2.7. Problem Set 19

Chapter 3. Extending Karel's Vocabulary 25

3.1. Creating a More Natural Programming Language 25

3.2. A Mechanism That Defines New Instructions 26

3.3. Block Structuring 27

3.4. The Meaning and Correctness of New Instructions 28

3.5. Defining New Instructions in a Program 29

3.6. Boxing: How Karel Understands a Program 32

3.7. An Ungrammatical Program 34

3.8. Tools for Designing and Writing Karel Programs 35

3.9. Advantages of Using New Instructions 53

3.10. Writing Understandable Programs 57

3.11. Problem Set 59

Chapter 4. Conditionally Executing Instructions 65

4.1. The IF/THEN Instruction 65

4.2. The Conditions Karel Can Test 66

4.3. Simple Examples of the IF/THEN Instruction 67

4.4. The IF/THEN/ELSE lƒÐ