Scratch Workshop

Thursday, August 26, 2010

What is Scratch?

• Scratch is a programming language that makes it easy to create interactive stories, animations, games, music and art

• Designed to help young people (ages 8+) to develop 21st Century skills

Scratch Interface

Blocks Palette

Scripts Area

Stage

Sprite List

Green Flag

Snapping Blocks• When you load Scratch,

your default sprite (character) will be the Scratch mascot

• To animate this sprite, you must drag and drop the blocks from the Block Palette into the Scripts Area

Making Your Sprite Do Stuff

Snapping these blocks together will move the sprite 10 steps while simultaneously rotating it 15 degrees... when the sprite on the Stage is clicked

Deleting Sprites

You can delete your sprite by right-clicking on its icon in the Sprite List and selecting delete.

Adding Sprites

You can add sprites clicking folder/star icon above the Sprite List

Each sprite has its own Script Window

Modifying the Background

To modify the background, double click in the white space on the Stage then click on the Background tab in the Scripts Area

8 Blocks!

• Using only these 8 blocks, create a project in which something surprising happens to a monkey.

Interactive Us!• Create a project that helps others learn about

you and the things you care about.

Maze!

Collide!

Telling Stories

• Slide show• Choose your own adventure• Animation

Slideshow Stories

Example files:

The Scratch Story of HopeD.sb

$100..sb

Concepts:

Changing stages

Use of “Next” command

Bonus additions:Sound filesHiding sprites

Choose Your Own Adventure Stories

Concepts:

Changing stages

Introduction of “IF” commands

Use of variables

Example files:

kostya 23.sb

Animation TypeConcepts:

Changing costumes

Use of “wait” command

Adding sounds and voices

Example files:

Wavingguy.sb

Connections to ICS2O

• Programming Constructso Variableso Input/Outputo Selectiono Repetitiono Stringso ListsoMessagingo Parallelism

ICS 2O1: A Scratch Unit

• Full year – 7 weeks• Semester – 3 – 4 weeks• 2-3 hours – Introduction to Scratch

– have the students hand in something (ex. Sailboat.sb)

• 9-10 hours – Sequence, Selection, Repetition– mix up small and medium sized programs

• 2-3 hours – Variables• 6-8 hours – Project

(Example: Maze_Pacman.sb)

Resources• http://learnscratch.org/

• http://scratched.media.mit.edu/resources/scratch-lesson-plan

• http://www.lero.ie/educationoutreach/secondlevel/scratchlessonplans/

• http://www.openbookproject.net/courses/scratch/day01.html

• http://scratched.media.mit.edu/resources/scratch-student-taskcards-accompanying-video-tutorials