Scratch 2.0 Beginner's Guide Second Edition

Michael Badger

• Verlag: Packt Publishing
• Jahr: 2014
• ISBN:
  9781782160731
• Auflage: 1
• Thema: Computer Science
• Thema: Computer Science General

The book uses step-by-step instructions along with full code listings for each exercise. After each exercise, the author pauses to reflect, explain, and offer insights before building on the project. The author approaches the content with the belief that we are all teachers and that you are reading this book not only because you want to learn, but because you want to share your knowledge with others. Motivated students can pick up this book and teach themselves how to program because the book takes a simple, strategic, and structured approach to learning Scratch. Parents can grasp the fundamentals so that they can guide their children through introductory Scratch programming exercises. It's perfect for homeschool families. Teachers of all disciplines from computer science to English can quickly get up to speed with Scratch and adapt the projects for use in the classroom.

Scratch 2.0 Beginner's Guide Second Edition

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Table of Contents

Scratch 2.0 Beginner's Guide Second Edition

Credits

About the Author

About the Reviewers

www.PacktPub.com

Support files, eBooks, discount offers, and more

Why Subscribe?

Free Access for Packt account holders

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Time for action – heading

What just happened?

Pop quiz – heading

Have a go hero – heading

Reader feedback

Customer support

Downloading the example code

Downloading the color images of this book

Errata

Piracy

Questions

1. Welcome to Scratch 2.0

About Scratch

Encouraging everyone to think programmatically

Sample Scratch uses

Computational thinking

Finding a project for you

Making animations

Telling stories

Building games

Programming games of chance

Creating art projects

Sensing the real world

Programming concepts

Using Scratch 2.0

Looking inside a Scratch project

The stage area

The sprites pane

The scripts area

The built-in image editor

Using Scratch 2.0 offline

Encountering Scratch 1.4

Tinkering encouraged

Summary

2. A Quick Start Guide to Scratch

Joining the Scratch community

Time for action – creating an account on the Scratch website

What just happened?

Time for action – understanding the key features of your account

What just happened?

Abiding by the terms of use

Creating projects under Creative Commons licenses

Finding free media online

Taking our first steps in Scratch

Time for action – moving the cat across the stage

What just happened?

Using events to trigger an action

Have a go hero – testing the move block

Time for action – animating a walking motion with the cat

What just happened?

Understanding the basics of a Scratch Project

Saving early, often, and automatically

Time for action – saving our work

What just happened?

Undoing a deletion

Introducing forever loops

Time for action – setting the cat in motion, forever

What just happened?

Controlling a sprite with loops

Time for action – flipping the cat right-side up

What just happened?

Clicking on a block runs the command

Have a go hero – exploring sprite rotation

Adding sprites to the project

Time for action – adding a second sprite and script

What just happened?

Reviewing a video-sensing project

Time for action – reviewing pop the balloon - video starter

What just happened?

Sensing video

Have a go hero – remixing ideas with our starter project

Pop quiz – getting started with Scratch

Summary

3. Creating an Animated Birthday Card

Introducing the paint editor

Time for action – painting a happy birthday sprite

What just happened?

Changing the size of a bitmap image

Choosing bitmap or vector images

Time for action – drawing a vector image

What just happened?

Changing the size of the vector image

Reviewing the image editing tools

Erasing in the vector mode

Filling the stage with color

Time for action – using the fill with color tool to paint the stage

What just happened?

Adding gradients

Time for action – applying a gradient

What just happened?

Time for action – adding more sprites to address the card

What just happened?

Initializing a sprite's starting values

Time for action – hiding all sprites when the flag is clicked

What just happened?

Time for action – displaying happy birthday

What just happened?

Specifying memorable names and comments

Time for action – renaming sprites

What just happened?

Inserting comments into our code

Time for action – adding comments to a script

What just happened?

Transforming sprites with graphical effects

Time for action – transforming sprites

What just happened?

Graphical transformations

Comparing the repeat and forever blocks

Time for action – turning m in a circle

What just happened?

Have a go hero – cleaning up the animations

Time for action – making a sprite fade in with the ghost effect

What just happened?

Two ways to control timing

Have a go hero – animating the butterfly

Pop quiz – reviewing the chapter

Summary

4. Creating a Scratch Story Book

Designing the outline of a barnyard joke book

Time for action – designing a clickable table of contents

What just happened?

Time for action – adding pages to the book

What just happened?

Time for action – adding a sprite to the Backpack

What just happened?

Using the Backpack to store sprites and scripts

Building a joke with say blocks and sounds

Time for action – making a horse talk with the say block

What just happened?

Time for action – synchronizing and animating the horse

What just happened?

Time for action – importing a horse sound

What just happened?

Playing supported sound formats

Positioning a sprite by its coordinates

Time for action – moving the dog based on x and y coord...