As you come in…

Sign in (in back) and pick up Badge Name Card – write your first name LARGELY on

back Any questions? (of any kind)

Put on index cards, drop in box (up front) Log in:

Launch/Start Alice Open a web browser, log in at http://piazza.com

Check your email for invitation

Question!

How do you remember all of this?!?!? I am used to taking notes…

VERY GOOD QUESTION! It’s because of the computer…

The ability to interact with it to “find out what’s true”

How do you remember what to say about specific topics (questions, slides, etc.) We’ve got copious notes for you

On each slide We have videos

Demoing as we would do in class Watch them yourself, or have students

watch them

Agenda (modify?)

Dates for Summer PD UCSD Class Month of July (observe once,

optional attend) Basics of Programming: Flow of Control

How programs are different than essays Sequential, Parallel, Repeated, Conditional

Nested Loops One loop inside another

Nested Ifs One if inside another (in “true” or “false” part)

Vocabulary Review

Object Instruction / Tile Method Parameter Loop (aka Counted Loop) -- repetition If statement -- conditional

Nested Loop: Eat At Joe’s (lecture example)

Let’s look at it Show how to make something invisible Build the code together

Eat At Joes, Nested Loop

Opacity 1 is visible Opacity 0 is invisible

Nested Loops: Bunny Square Dance We want to direct the bunny to hop in a

square pattern. The “length” of each side of his square should be 5 hops. Let’s watch

Break down the problem: Create “one side” of square Create turn Repeat that whole thing…

Nested Loops: Bunny Square Dance We want to direct the bunny to hop in a

square pattern. The “length” of each side of his square should be 5 hops. Let’s watch

Here’s the structure of our code, what numbers would you put in for each missing number?

Outer Loop count Inner Loop count

Turn parameter

A 4 5 .25

B 4 5 1

C 5 4 .25

D 5 4 1Goal: Hop in a square, 5 hops on each side

Review: Ifs – Conditional Execution

With one if statement, we could do Either “then block” or the “else block” but

not both

Else block

Then block

More Complex Conditional Execution(e.g. more than one “test”)

b

More Complex Conditional Execution(e.g. more than one “test”)

b

More Complex Conditional Execution(e.g. more than one “test”)

b

Let’s make a game!

Player can click on a ball The bunny will say something different

depending on the ball chosen. We’ll build up our solution a bit at a time

Get red and blue working (with one if statement)

Get green working(nested if statement)

Online Textbook Example Section 9.2

BUT WAIT!

EVENTS!

Simple way to take user control Many ways, we’ll stick to “click on object”

NEW CONCEPT: Parameter A value you can send to a method that controls

how it works Wait! We know this!

We’ll create our own parameter to the my first method If this is confusing, don’t worry, we’ll explore more…

What does this code do?

Assume that you have an event so that when you click on an igloo it calls a my first method and sends the igloo as a parameter

Next we’ll show youmy first method and askyou what it does

What does this code do?When blue, red or green…

FeedbackParaphrase

Justify

World.my first method

How many of the following are true?

1. When the igloo is blue, says Ice Cold! 2. When the igloo is red, says Hot! 3. When the igloo is blue, says Ice Cold!

AND then says Try again!4. When the igloo is green, nothing

happens

FeedbackParaphrase

Justify

1. blue, says Ice Cold! 2. red, says Hot! 3. blue, says Ice Cold! AND then says Try

again!4. green, nothing happens

A) 1 B) 2 C)3 D) 4E)