Make It Your Own

My 10th after school Code Club started at the end of February.  This is a small group of 10 4th grade students, which is nice for a change. It is great to have three girls in the club, too. A couple of the students were in Code Club in 3rd grade and a couple students also come to the monthly Library Code Club.

For our first project, I presented an old Code Club project “Felix and Hebert” which I did not find on the Code Club World site when I went to link to it. It is a simple chase game where one Sprite is controlled by the mouse, the other chases after it. The project gets you a simple game with very little coding. It is a nice way to introduce Sprites and Events and I saw some creative projects.

For our second meeting, we started with an Etch-a-sketch project with the option to add a maze game to it.  Some students stayed with the Etch-a-sketch project, just having fun messing around with drawing on the screen. It was a nice twist to start with the Pen blocks and directional controls, then add the wall color sensing code for a maze game. I feel these two projects transition nicely into each other instead of doing one project or the other.

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This student just enjoyed making a drawing program.

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Etch-a-Sketch code

Another student changed the arrow keys commands to generate interesting curve drawings. The up arrow moves the Sprite forward as normal but the left and right keys turn the Sprite.  Hold two keys at once for drawing curves.

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Up arrow for moving forward, Left and right for changing direction. Plus the trail of the chaser bot.


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It was very cool to see curves drawn instead of the usual straight lines and square corners of the Etch-a-Sketch. Some of the other students wanted to copy this movement style.  I was proud to see the students share their code ideas.  Later I saw one student sharing a way to make your own code blocks. He thought this code was how he made the Sprite stop moving.

When I looked closer, I noticed he didn’t have any blocks under the define hat.  He was sharing his code but it wasn’t code that was affecting anything.  I am impressed that he choose to design his own code block when he couldn’t find the block he wanted, even if he doesn’t yet understand how to do that.

Next week we are going to try the Chatbot project and I’ll have to explain how the “Make your own blocks” work.  I have been wanting to show students how those work, now I have a good excuse.

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In this project, you can teleport to the rainbow.


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Touch yellow to be teleported to the rainbow. Touch black to return.

This is a creative and adventurous group.  Should be a fun 10 weeks.


Poetry Generation in Scratch

Fourth graders in Ms. Bradley’s class finished up their Hour of Code projects yesterday and we published their poetry generators in this Poetry Studio.

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These students have been doing quite a bit of poetry work this fall so when I approached their teacher about a Scratch project for Computer Science Ed Week, I had Code Club World’s Ada’s Poetry Generator project in mind.

The students worked in pairs and generated a list of verbs, nouns, adverbs, and adjectives in the classroom before heading to the computer lab.  The next step was to makea stage backdrop in Scratch.  I didn’t want them to use one from the library of backdrops but to create their own.  I showed them how to quickly color fill with a gradient but they all sort of went with lines of color, which looks pretty cool.

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I decided to jump into the middle of the Code Club World project and have them start with creating their lists and coding the poem generator.  I was concerned the papers with the lists of words would disappear before we had a chance to finish up the project.  I was right. We had a snow day on the day they were scheduled to complete the project.  Yesterday, last day before the break, we squeezed in the time to complete the poetry generators.

With the lists already made and the poems coded during the first session, the second work session was aimed at checking their code to make sure everything worked and adding a beginning and an end.  Could you add a second Sprite to introduce the poem generator and give instructions?  Could you some action or music at the end?

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basic poem generation code.



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A beginning, middle, and end.


Then we uploaded the projects to share with the Scratch community.

Some notes on facilitating pair work: I did talk about pair programming before we sat at the computers.  During each session, I would announce “time to switch driver and navigator” at regular intervals, as many weren’t willing to give up control on their own.

Also, don’t give them too much time to work on this or the special effects will outshine the poetry.

Don’t forget to save some time to add instructions, notes, and credits on the project page.  I need to be better at this.

It would have been great to have time to enjoy other classmates’ projects and give feedback, but at least they are posted and shared.

I would do this project again.


Getting Them Ready

We’re already half-way through the fall Code Club session for 4th graders. Now is the time when they start working on the design of their own project.  Having the opportunity to create their own game is pretty much why they come. My job is to get them ready to be successful in this venture.  To this end, I try to present lessons that help them learn programming concepts that they will want to use in their game design.

After eight Showcases and 108 projects, I feel have an idea of the essential programming concepts students will be using in the games students like to make.  We move fast and don’t get the chance to do more than introduce these concepts – it’s more learning to code than learning computer science.  It’s a start.

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Get the taco to the Scratch cat

Here’s what they will want –  A Sprite they can control with arrow keys to move around their game.  (The maze game).  A Sprite that can chase after them (Cat and Mouse).  Both of these projects introduce sensing as well  – in the maze game you are forever checking if you touch the sides and in both, you are forever checking if you won.

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You’re the banana. Don’t let the monkey eat you.

They might want to keep track of a score or set a time limit.  (Ghostbusters)

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Click on the Sprites when they appear to get points.

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From experience, some of them will want a game with gravity. It’s a concept that I don’t usually spend any time on but this year, from talking with the students, I could tell there will be some platform games in the works.

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I used Code Club World’s Flappy Parrot project to introduce gravity.  It also reveals the animation trick of moving the background while the main character stays in the middle.

I wasn’t sure if they would be able to handle this project, but they worked through it well and I felt they were successful.

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Flappy robot costumes – hand drawn wings

This last week we did the virtual pet project from the Scratch Tips.  I printed some of the Scratch cards of the project as well.  Virtual pet introduces broadcast & receive which is an important but difficult concept.  Broadcast & receive is powerful but requires planning and keeping track of your Sprites. This level of thinking is just developing for them.  They struggled with broadcast and receive, but mostly with the motion blocks because they were modifying the placement of Sprites to fit their creative take on a virtual pet but couldn’t translate that to adjust the go-to blocks properly so they got some strange movements they didn’t understand.

All in all, I like this progression of projects: 1) Maze game, 2) Felix & Herbert, 3) Ghostbusters, 4) Flappy Parrot, 5) Virtual Pet. It presents a variety of game types and hits some good basic concepts.  It leaves out a few of my favorites, though, like Chatbot. I also feel they need more basic coordinate knowledge (move, go to, glide).

(The problem with not blogging regularly is that when you do, you have too much to say and the blog gets really long, for which I apologize.)

New Code Club Starts

I am collaborating with the children’s librarian in my city to run a monthly code club for kids 8-12.  Our first meeting was last Monday.  We had six kids show up.  I knew three of them from two years ago when they were in my after-school 4th grade Code Club.  It was great to see them again.  The other three were mostly new to Scratch.  One of the coder’s grandmother stayed for the session and we set her up to play and learn Scratch, too, and she jumped right in a made a Chatbot project.

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I knew we were going to be using the library’s Chromebooks, so I set up a teacher account and a class along with some student accounts.  I figured a few of the coders might have a Scratch account already.  One said he did but didn’t remember it.  They all ended up using one of the class accounts.   That made it easy for sharing their projects at the end of the session.

Chatbot is one of my favorite projects from Code Club World.  It requires only one Sprite and Stage, is interactive, and the projects can become very creative very quickly.   It introduces the conditional block “if then, else”, a powerful, useful coding block for decision making.  It also introduces the ask-answer block pair as a quick way to introduce interactivity. The expert coders sort of remembered Chatbot but were very happy to revisit it.

By the end of the session, everyone was successful in setting up a Chatbot and coding an “if then, else” block at the least.  Some added more complexity with movements and costume changes. It was fun to see the different, creative takes on Chatbot.  The coders shared their projects, even though some were not complete and we played them all through.  I put them in our October project studio and liked them all.

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I thought the English/Spanish Chatbot project was a great idea – it could be a cool way to show what you’ve learned from Spanish class.

We asked the club members what types of projects they wanted to work on in future meetings.  I heard ideas ranging from Ghost Busters, Pong, anything with horses, to a platform game. Good ideas!  We are hoping more kids sign up and we can grow the club a bit.

It was great to be back working with Scratchers.  My after-school Code Club starts up next week. More new Scratchers.

Mix in Some Makey-Makey Action

Ever since I got the first Makey-Makey, just before school let out last June, I’ve been looking for an opportunity to introduce them in Code Club.

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First time using Makey-Makey

I gained more experience with them at the Scratch@MIT2016 Convention when I participated in the Code Create Art Alive workshop.  In the Fall, I did introduce the Makey-Makey devices to some 4th graders at alternative recess but not at Code Club or with a whole class.  There was so much coding to learn and to be honest, I wasn’t sure what it would look like. Finally, last week in Code Club, I brought out the Makey-Makeys (we have 7 of them), some bananas, potatoes, foil, junk building supplies and it happened.

We talked about conductors, making a closed circuit, connecting to ground/earth, etc. There were many questions related to dangers of electricity since you plug it into the computer and the computer is plugged into the main current.

I showed them the Makey Makey piano, with bananas of course.  Then I showed them how to use it with games they have already made – like the race game.  For that, I had mocked up a pressure sensor (to step on) from a padded envelope.  It worked really well with the race game.

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Pressure pad for Makey-Makey from a padded envelope.

Then I introduced Whack-a-Potato that I found from the Makey-Makey lessons and also on Instructables.  I made a Whack-a-mole (squirrel) Scratch project and improved my code by looking at Scratcher tarmelop’s Whack-a-Ghost project.

I put together a Google Doc with the instructions for the students.  It is not a polished learning guide, just the basics for them to code up a Whack-a-mole game.

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Whack-a-Squirrel for Makey-Makey play

I few students got to work on the Whack-a-Potato project.  Others wanted to pursue a Makey-Makey music themed project or paint project.  A few just set up a Makey-Makey to work with a project they had already built.


Makey-Makey Maze


Building a complex pressure pad


Potatoes and Tangerines

It was great to see the students try things. I hope this inspires the students to think of incorporating Makey-Makey devices with their final individual projects. I am hoping that is where this will lead.

Poetry Generator

While planning Wednesday’s Code Club during a snow day on Tuesday I came across the Code Club World project Ada’s Poetry Generator.  This is a new project for me and I liked the way it introduced and used lists.   Arrays and lists are extremely important data structures in programming – right up there with loops and variables. I’ve never introduced lists in Scratch before.  I also liked how this project wasn’t a game but had the potential for a lot of creativity and fun.

I mocked up a project with Scratch Cat instead of Ada Lovelace.  (I did talk briefly about Ada when introducing the project.)

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I added some “talking” animation to Scratch Cat by duplicating costumes and morphing the mouth into different shapes.  Then coding the costumes to change when the poem is “spoken”

Some students whined a bit about poetry and not a game but I ignored that because I knew they’d like it once they figured it out.  I’m hoping someone chooses to make a MadLib or something similar for the final project.  If not, I may see if we can use this in some language arts project.

Here are some nice examples:

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Computer generating poetry with lists

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This coder really liked gluteus maximus, and unhelpful list naming conventions.

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Awesome animated mouth

This coder is my animator to be.  He drew and animated the PacMan and Ghost being eaten costumes… then he coded the poem in the last few minutes.

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Future animator

These two below took the morphing a bit to the extreme but the coding (and poetry) is well done:

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I enjoyed reading all the funny randomly generated poems that the students created.  I was glad I choose this project for my Code Club.

Code to Print

Code Club is on a break until the end of February. Meanwhile 4th grade students have been coding during alternative recess opportunities when the lab is available.

I have seen a growing interest in coding in BeetleBlocks now that we have a 3d printer available to print artifacts and I am quite thrilled.  Most 4th graders have had an introduction BeetleBlocks when we used it to print their names (I have one more 4th grade class to schedule), but printing names of their friends or teachers still interests them.


Some 3d printed names

Some are just curious to print a single shape – cube, cuboid or sphere. Spheres are the hardest to print – even with a small cuboid base, they don’t print very well.  Students seem to love the prints that “blow up” as well as the successes.

I asked the snowman creator to add a cuboid below so the print would be successful, and it was.


Snowman artifact

Recently I printed a cannon that a student had made in BeetleBlocks for a social studies report on the Middle Ages.  I asked him to break the code into 2 parts – the barrel and the base thinking that would help the print be successful.  It printed out well enough.  We glued it together with a 3d pen.


Cannon printed in 2 parts, glued together with a 3D pen

What surprises the students the most is the size of the print compared to what they see on the screen.  Even though we went over the the numbers translate into millimeters.  I try not to scale anything but instead make them go back to the code and change it there.

Recently I printed a pair of rings.  There have been some other rings coded but this was the first project that reached the export to print stage. The 4th grader had started on Monday and measured her finger (with the mm calipers) to code a tube of that diameter.  Then we added a sphere on the top.  That was all we had time for on Monday.  On Wednesday she came in with a list of code she had written down.  She had worked on the project at home and didn’t know how to save it so she wrote down the code and brought it to school.  She also measured her friend’s finger to print one customized for her.


BeetleBlocks rings


A pair of printed rings

It only took a few minutes to print.  The size will need some tweaking, but I suspect I will be printing more rings in the future.  We’ve shared the project for others to see or use.

In September I wasn’t sure what 4th graders could do with BeetleBlocks and every week they surprise me with their creativity.  I hope to report more on their explorations in the coming months.