: If your code says a shape is "not defined," make sure you created the shape globally or passed it correctly into the function. Speed Issues : If the animation is too fast or slow, adjust the app.stepsPerSecond value or the increment amount (e.g., changing Summary of Result CMU CS Academy 6.3.5

Some versions of 6.3.5 provide a pre-drawn shape. Do not delete it; modify it.

It's a typical Monday morning for Rohan, a junior from California, who's enrolled in the CMU CS Academy's online course, "Introduction to Computer Science." Rohan wakes up early, grabs a cup of coffee, and logs into his computer. He opens his web browser and navigates to the course website, where he checks the daily schedule and assignments.

: If icon.bottom >= 400 or icon.top <= 0 , then icon.dy *= -1 . 💡 Common 6.3.5 Variants

As Rohan and his fellow students continue to explore the world of computer science, they'll discover new opportunities, tackle complex challenges, and create innovative solutions that transform their lives and the world around them.

If you are currently stuck on 6.3.5, check for these common pitfalls: