Intro to Programming with Scratch Halloween Edition

Problem Solving Programming is just solving problems and challenges: Read and understand the problem: What are you making? Design a solution: What will your program do? What will it look like? Implement the solution: Coding time!! Test solution: Does your program work the way you want it to? Revise as needed: If it doesn’t work the way you want, fix and test as much as you need Use get ready to school as an example

Computer Programming Writing programs is like solving any problems We give the computer a sequence of instructions, and the computer does exactly what you tell it to do You can think of these instructions as steps to solve a problem Example: How do you make a cake? Step 1: Preheat the oven Step 2: Mix all the ingredients together Step 3: Put the mixture in a pan Step 4: Put the pan in the oven for 45 minutes Step 5: Let the pan cool, transfer to a plate and enjoy!!

Scratch Go to scratch.mit.edu Scratch creates stories, games, animations: Sprites: main characters(objects) in your story Task1: Draw a Character Visual coding is great for beginners at any age. Ask if the kids are interested in making andriod applicaitons

Scripts in Scratch Scripts = Code Events Execute code when certain things happen Task 2: Write Script so that when you click on green flag, your character ask “Hello World!” Go through example online Events: When something happens….. (do something) Control/Sensing: Use sensing to fill in if-statements. Used for collisions, and movement Motion: Move sprites… das about it Looks: Shows and hides things and makes sprites talk Operators: usually used with if statements MSEN Maze: https://scratch.mit.edu/projects/78330594/ THIS IS FOR INSTRUCTOR AS A “CHEAT SHEET” please create the maze game on the projector and help the kids along with the game. Have one person do one step at a time at the projector, and at least two people walking around helping out kids that may lag behind.

Scripts in Scratch Scripts = Code Control Flow: forever; if, then; if, else; repeat until Sensing & Motion When you character sense a situation, do sth. Task 3: a) Write script so if you click up arrow on keyboard, your character move up; b) write similar script for down, left and right c) make your character able to do this forever. Go through example online Events: When something happens….. (do something) Control/Sensing: Use sensing to fill in if-statements. Used for collisions, and movement Motion: Move sprites… das about it Looks: Shows and hides things and makes sprites talk Operators: usually used with if statements MSEN Maze: https://scratch.mit.edu/projects/78330594/ THIS IS FOR INSTRUCTOR AS A “CHEAT SHEET” please create the maze game on the projector and help the kids along with the game. Have one person do one step at a time at the projector, and at least two people walking around helping out kids that may lag behind.

Lets start a Maze project Task 4: Let’s make a puzzle Game: Create a new Sprite: draw a maze Create a new Sprite: your prize, put it at the end of the maze Use the script in Task 1-3, does it work? how to make your character doesn’t go through walls https://scratch.mit.edu/projects/11710850/#editor

Let's start a Maze project Task 5: Have time and score in your game In Data, Create a variable score, a variable time set score and time equals 0. where should you set it? how to make time change 1 every second? https://scratch.mit.edu/projects/90637407/#editor

Let's start a Maze project Task 6: Make your game more fine Add traps in the maze your character should be able to move around the trap, so make it small when touch a trap, minus point Add an enemy the enemy move by itself (use glide) if your character touched the enemy, go back to the start Add a sphinx, you can only pass if you correctly answer a math question hint: use ask, answer, and if control to test the answer’s correctness https://scratch.mit.edu/projects/90637407/#editor

Save & Play Each other’s Game Hurah!!!