U2L1- Variables

• Ap csa
• 10th Grade

What software engineering characteristics do you want to work on in this unit?

How will you know you grew in this area by the end of the unit?

Where have you seen or used variables before?

What might you store in a variable in a program?

What is a variable

1. changeable value
2. code writing
3. value that offers code
4. value that writes code

Code.org

Please go to Level 1 for Lesson 1 of Unit 2 and do the prediction level.

What do you wonder about the code in this program?

What do you notice about the code in this program

code.org

Please do level 2 of lesson 1 unit 2 in code.org.

code.org

Please complete levels 3-5 on code.org unit 2 lesson 1

Key Vocabulary:

Vocab: Unit 2 Lesson 1 on pages

vocab

assignment - using the assignment operator ( = ) to initialize or change the value stored in a variable

data type - the format of the data that can be stored in a variable

vocab

literal - a source code representation of a value, such as a number or text

primitive type - a basic data type that Java predefines

vocab

declaration - giving a name and data type to a variable

initialization - giving a starting value to a variable using the assignment operator ( = )

vocab

reference type - a data type that contains a pointer to the memory location of an object

variable - a container that stores a value in memory

Homework for tonight

1. Unit guide pages 1-4

2. Extra Practice

3. CHECK FOR UNDERSTANDING

4. SCHOOL WORK