Students new to Scratch Programming can view a number of animated tutorials on Scratch’s website. When a student opens a new project, the tutorials can be seen behind the question mark on the right side of the web page. Clicking the question mark expands the menu.
While animated tutorials are helpful, they’re greatly improved with narration. Take for example the Catch Game. Students are shown how to select an apple and a bowl for their sprites. The apple must be programmed to repeatedly fall randomly from the sky; the bowl must be programmed to move left or right at the bottom of the screen (it will catch the apples). As students follow the tutorial, adding code blocks, the animation will move repeatedly between the apple and the bowl. This leads students to create scripts for the wrong sprite. Close attention to detail requires not only watching the animation but reading the directions. Young programmers are eager to build games – – as quickly as possible. Reading directions is not always a top priority. So, I created this step-by-step tutorial with narration for the Catch Game. In the video, you’ll see me make two errors and then stop and correct myself. Making mistakes requires a redo but in programming it’s called iteration. Teaching kids how to code with an appropriate computer language like Scratch helps them build computational skills. Computational skills include decomposition, pattern recognition, and algorithmic design.
I recently programmed a 4-level game with Scratch. I used a honey bee for the theme. Each level used a unique piece of music designed to create anxiety in the player, making young players–and some older–freak out! Upon closer inspection, each level is not quite so difficult. It took about 70-80 hours to program the game.
Player directs the bee through a honeycomb maze to reach the hive.
Touching a flower along the way earns a point.
Touching a black line makes the bee say “Ouch” and returns the bee to starting position.
Player must move the bee diagonally between the honeycomb-shaped flowers to reach the swarm.
Touching a honeycomb flower or being run over by the moving black squares returns the bee to starting position.
Player must move the bee safely across the highway to reach the pink flower.
If the bee is run over by the moving fly swatter, fly paper, or insect potions, the player blows up and is returned to starting position.
Player can’t let the bee touch any white lines or the perimeter of the background; otherwise, the sound of breaking glass is triggered and returns the player to starting position.
Player must help the bee fly toward the passing objects in the night sky while avoiding contact with the vertically moving insect zappers.
Player has 2 minutes to earn as many points as possible.
This video tutorial shows how the game appears to the player.
Scratch is a simple-to-use free programming language for kids, though also popular with adults. It uses colorfully coded blocks to help young programmers develop an understanding of programming. Users can create interactive projects by simply snapping blocks together. The video shown below demonstrates the steps needed to animate your name.
This tutorial demonstrates the following skills:
–how to title and share your project
-how to select letters, resize, and color them
-how to select a backdrop
-how to troubleshoot letters when they don’t return to their normal position
-how to add sound files
-how to duplicate scripts