GRADE 4

Pixel Art with Perler Beads

We started making our own pixel art with melty plastic beads. First, we selected images that we could sample and still make out what the pixelated version was. We realized that it takes a lot of bits to encode complex images. Then, we began creating physical representations of our pixel art. We realized it takes us a longer time than we predicted to encode things by hand even if there’s a limited set of pixels. We had to do lots of counting using the grids we created!

Binary Code Bracelets

We discussed how our computing devices use common code sequences in binary (8 bits or 8 zeroes or ones = 1 byte) for things like letters of the alphabet. A common example is the ASCII system. We wrote out binary code for our initials using ASCII. Then, we made two-color (binary) bracelets for our initials.

Creating Colors with Binary Code

We discussed how three LEDs that are the colors red, green, and blue (RGB) can be used to produce a lot of different colors. This involves turning some lights on and others off. Or making some brighter than others. We can control which LEDs are on and off using 1s and 0s, too!

We used the pixel widget in code.org to make different colors. We also tried to recreate some images in color using 6 bit codes, 2 bits for red, green, and blue each. We could make 64 colors using 6 bits.

Laser Cutting Geometric Designs Created with Coded Loops

We’ve continued thinking about patterns and code. We created geometric designs using repeat, move, and turn blocks to tell our digital turtles what to draw in Turtle Stitch. Then, we used our laser cutter to carve our designs into wooden medallions.

Creating Spin Art with LEGO Robotics

We used our WeDo LEGO robotics kits to build spin art devices. To build the device, we used instructions with images. Then, we used the WeDo app to control the spin of the motor.

Coding Loops with Sphero Indi

We did some coding with Sphero Indi and color cards to create an algorithm in which the robot doesn't stop. This repeated pattern is a loop.

Staying Safe and Kind on the Internet

We learned about digital citizenship with Interland, by discussing digital citizenship scenarios, and from a guest speaker from the Office of the Pennsylvania Attorney General.

Genius Hour

We kicked off Genius Hour. Students have opportunities throughout the year to design and complete projects of their choosing. Schools across the world implement Genius Hour programs to support students in pursuing their own interests and explore their passions. The Wildcat Workshop, with its materials and emphasis on civic and creative uses of digital technologies, is a perfect space for this kind of activity.