In this lesson, students are introduced to CodeHS and how Karel the Dog can be given a set of instructions to perform a simple task.
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Write their first Karel program by typing out all of the Karel commands with proper syntax
Explain how giving commands to a computer is like giving commands to a dog
In this lesson, students learn more about Karel and Karel’s world. Students learn about walls in Karel’s world, the directions Karel can face, and how to identify a location in Karel’s world using rows and columns. In these exercises, students will begin to see the limitations of Karel’s commands. Students will need to apply Karel’s limited set of commands to new situations. For example, how can they make Karel turn right, even though Karel does not know a turnRight command?
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In this lesson, students will learn how they can create their own commands for Karel by calling and defining functions. Functions allow programmers to create and reuse new commands that make code more readable and scalable.
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turnRight() functionIn this lesson, students learn in more detail about functions, and how they can use functions to break down their programs into smaller pieces and make them easier to understand.
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This lesson provides students with extra practice in creating custom functions.
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In this lesson, students will deepen their understanding of functions by learning about the main function. The main function helps to organize the readability of code by creating a designated place where code that is going to be run in a program can be stored:
function main(){
turnRight();
}
function turnRight(){
turnLeft();
turnLeft();
turnLeft();
}
main();Students will be able to:
In this lesson, students learn about Top Down Design and Decomposition. Top Down Design is the process of breaking down a big problem into smaller parts.
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In this lesson, students learn how to style their programs by including comments. Comments allow students to leave notes on their program that makes it easier for other to read. Comments are written in plain English.
Commenting Your Code Example:
/*
* multi-line comments
*/
// single line commentsStudents will be able to:
In this lesson, students are introduced to Super Karel! Since commands like turnRight() and turnAround() are so commonly used, students shouldn’t have to define them in every single program. This is where Super Karel comes in. Super Karel is just like Karel, except Super Karel already knows how to turnRight and turnAround, so students don’t have to define those functions anymore!
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In this lesson, students learn how to use for loops in their programs. The for loop allows students to repeat a specific part of code a fixed number of times.
For loops are written like this:
for(let i = 0; i < 4; i++)
{
// Code to be repeated 4 times
}Students will be able to:
This lesson gives students more practice creating and debugging for loops. The for loop allows you to repeat a specific part of code a fixed number of times.
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In this lesson, students learn about the conditional statement “if”. Code within an “if statement” will only execute IF the condition is true.
if (frontIsClear()) {
// Code to be executed only if front is clear
}Students will be able to:
In this lesson, students learn about an additional control structure, if/else statements. If/else statements let students do one thing if a condition is true, and something else otherwise.
if/else statements are written like this:
if (frontIsClear()) {
// code to execute if front is clear
} else {
// code to execute otherwise
}
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In this lesson, students learn more about debugging strategies and get extra practice using if / else statements.
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In this lesson, students are introduced a new type of loop: while loops. While loops allow Karel to repeat code while a certain condition is true. While loops allow students to create general solutions to problems that will work on multiple Karel worlds, rather than just one.
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This lesson provides students with extra practice in using while loops.
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In this lesson, students review how they should indent their code to make it easier to read.
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In this lesson, students learn how to combine and incorporate the different control structures they’ve learned to create more complex programs.
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In this lesson, students get extra practice with control structures. Students will continue to see different ways that the if, if/else, while, and for loops affect their code and what Karel can do.
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In this lesson, students are introduced to Ultra Karel! Ultra Karel has all the abilities of Super Karel, plus two new functions (paint and isColor) added to the API. Students also learn about function parameters and how to use them when calling the new functions.
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In this module, students will synthesize all of the skills and concepts learned in the Karel module to solve increasingly challenging Karel puzzles.
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In this lesson, students use all of their programming skills to create their very own Karel project from scratch!
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