Karel Programming Unit 1 Quiz & Flashcards

Questions and Answers

Who/What is Karel?

Karel is a dog who listens to your commands.

What is programming or coding?

Giving commands to a computer, similar to giving commands to a dog.

Which of the following are Karel commands? (Select all that apply)

put_ball() (correct)

move() (correct)

take_ball() (correct)

turn_left() (correct)

Karel commands can have spaces in them.

False Signup and view all the answers

How many directions can Karel face?

Four directions: east, north, west, and south. Signup and view all the answers

What are functions in programming?

Functions are how we teach Karel new commands. Signup and view all the answers

What is the purpose of functions?

To break our program into smaller parts, make it easier to understand, and avoid repeating code. Signup and view all the answers

Everything indented one level is called the ________________.

function body Signup and view all the answers

What should the name of your functions start with?

A letter, cannot have spaces, and should be in snake_case. Signup and view all the answers

What is defining a function?

Teaching Karel the new word. Signup and view all the answers

What does calling a function mean?

Actually getting Karel to do the command. Signup and view all the answers

What is top-down design?

Helps solve complicated problems by splitting them into subproblems. Signup and view all the answers

What is decomposition in programming?

Breaking your program down into small, manageable parts. Signup and view all the answers

What is style in programming?

Good style means clarity and reasonable problem breakdown. Signup and view all the answers

What is the purpose of comments in code?

To leave notes about what your code is doing. Signup and view all the answers

Code is run by computers but read by people.

True Signup and view all the answers

What are preconditions?

What assumptions we make before the function is called. Signup and view all the answers

What are postconditions?

What should be true after the function is called. Signup and view all the answers

What is abstraction in programming?

Managing complexity by focusing on relevant concepts. Signup and view all the answers

What is high-level abstraction?

The Warriors won by 10 points. Signup and view all the answers

What is low-level abstraction?

Detailed physical actions of a player in a game. Signup and view all the answers

What is procedural abstraction?

Defining the steps of a program without focusing on details. Signup and view all the answers

What does managing complexity mean in programming?

Programming languages abstract away complex details. Signup and view all the answers

What is SuperKarel?

SuperKarel has turn_right() and turn_around() already defined. Signup and view all the answers

What is an API?

A set of tools for building programs. Signup and view all the answers

How does Karel relate to API?

Karel is an API built in Python for programming. Signup and view all the answers

What is the SuperKarel API?

The same as the Karel API, with new additions. Signup and view all the answers

Which commands does SuperKarel have? (Select all that apply)

take_ball() Signup and view all the answers

What is documentation in relation to an API?

Important information that provides guidance on how to use the API. Signup and view all the answers

Study Notes

Karel Overview

Karel is a dog that responds to commands, similar to how programming involves giving commands to a computer.
Commands used with Karel include move(), turn_left(), put_ball(), and take_ball().

Understanding Commands

Karel commands require no spaces and must match exact capitalization.
Each command concludes with parentheses for proper syntax.
Karel can face four directions: east, north, west, and south, affecting his visual representation.

Functions in Programming

Functions are used to introduce new commands to Karel, allowing for a more modular approach to coding.
They help break down programs into smaller, manageable parts, improving readability and reducing code repetition.
Each function's indented portion is known as the function body.

Naming and Defining Functions

Function names must start with a letter, contain no spaces, and be in lowercase with words separated by underscores (snake_case).
Names should clearly describe their function and start with an action verb.
Defining a function is the process of teaching Karel a new command.

Function Execution

Calling a function refers to executing the command assigned to Karel.

Problem-Solving Strategies

Top Down Design aids in handling complex problems by maintaining simplicity and readability in code while allowing collaborative work via subproblems.
Decomposition involves simplifying large functions into smaller, more understandable ones.

Code Style and Documentation

Good programming style goes beyond functionality; it ensures clarity and reasonable problem breakdown.
Comments serve as explanatory notes for code, improving understandability for others.

Types of Comments

Multi-line comments can encapsulate longer explanations, while single-line comments focus on brief notes.

Preconditions and Postconditions

Preconditions are the assumptions made before a function is executed, while postconditions describe the expected outcomes after execution.

Abstracting Complexity

Abstraction helps manage complexity by simplifying details, allowing focus on key concepts.
High-level abstraction condenses details into broader summaries, while low-level abstraction delves into minute specifics.

SuperKarel and APIs

SuperKarel has pre-defined commands like turn_right() and turn_around(), making programming more efficient.
An API (Application Programming Interface) is a collection of tools for building software, with Karel being an example of an API that simplifies programming tasks.
The Karel API and SuperKarel API facilitate easier programming by abstracting complex functionality, enhancing user experience.

Essential SuperKarel Commands

The available commands include move(), put_ball(), take_ball(), turn_left(), turn_right(), and turn_around().

Importance of Documentation

Documentation in an API is crucial as it provides necessary information to understand its functionality and usage.

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Description

Test your understanding of Karel programming with this set of flashcards. Each card focuses on key terms and concepts related to Karel and its commands. Perfect for beginners looking to grasp the basics of programming in a fun and engaging way.

Karel Programming Unit 1 Flashcards