pxt-calliope/docs/courses/csintro/iteration/project.md

Project: Get loopy!

There are many different ways to use the three types of loop blocks.

Recall the different common repetitive actions you thought of back at the beginning of this lesson.

• How will you use loops to create something useful, entertaining, or interesting?
• What might you make?

Here are some suggestions:

• Create an animated gif (looping image that changes) and add music that matches.
• Create animation that repeats for one of the melodies included in Make Code  (like Happy Birthday).
• Create different animations that run when different buttons are pressed.
• Create an alarm that includes sound and images. What will set the alarm off? What will make the alarm stop sounding?
• Use servo motors to create a creature that dances and changes its expression while a song plays.

Example

Hat Man Project

Hat Man Videos

micro:bit Hat Man https://youtu.be/Xvybu_T5IL8

micro:bit Hat Man - inside view https://youtu.be/ZfKgFQjygQQ
This project uses the micro:bit light sensor to display a happy face when it is sunny, and a frowning face when it is dark. The micro:bit is connected to a servo mounted on the inside of the container, and the smile and frown are attached to plastic coffee stirrers with tape and hot glue.

Reflection

Have students write a reflection of about 150–300 words, addressing the following points:

• Explain how you decided on your particular "loopy" idea. What brainstorming ideas did you come up with?
• What type of loop did you use? For, While, or Repeat
• What was something that was surprising to you about the process of creating this program?
• Describe a difficult point in the process of designing this program, and explain how you resolved it.
• What feedback did your beta testers give you? How did that help you improve your loop demo?

Assessment

Competency scores: 4, 3, 2, 1

Loops

4 = At least 3 different loops are implemented in a meaningful way.
3 = At least 2 loops are implemented in a meaningful way.
2 = At least 1 loop is implemented in a meaningful way.
1 = No variables are implemented.

Variables (parameters)

4 = All variable names are unique and clearly describe what information values the variables hold
3 = The majority of variable names are unique and clearly describe what information values the variables hold.
2 = Few variable names are unique or clearly describe what information values the variables hold.
1 = None of the variable names clearly describe what information values the variables hold.

Sound, display, and motion

4 = Uses sound, display, and motion in a way that is integral to the program.
3 = Uses only two of the required elements in a way that is integral to the program.
2 = Uses only one of the required elements in a way that is integral to the program.
1 = None of the required elements are used.

micro:bit program

4 = micro:bit program:
* Uses loops in a way that is integral to the program
* Compiles and runs as intended
* Meaningful comments in code
3 = micro:bit program lacks 1 of the required elements.
2 = micro:bit program lacks 2 of the required elements.
1 = micro:bit program lacks 3 or more of the required elements.

Collaboration reflection

4 = Reflection piece includes:
* Brainstorming ideas
* Construction
* Programming
* Beta testing
3 = Reflection piece lacks 1 of the required elements.
2 = Reflection piece lacks 2 of the required elements.
1 = Reflection piece lacks 3 of the required elements.