This document provides an introduction to JavaScript programming. It defines JavaScript as a popular programming language used to make web pages interactive. It discusses algorithms, variables, and flowcharts that are used to help program in JavaScript. It provides examples of algorithms, rules for creating flowcharts, and defines common symbols used in flowcharts like decision boxes, flow lines, input/output boxes, and process boxes. It concludes with an activity to create a flowchart for finding the perimeter of a square based on given algorithm steps.

1. Unit One: JavaScript Programming

2. Fill in the blanks game

3. What is JavaScript?

JavaScript is a popular __________
language that's built into all the major web
browsers and used to make web pages
interactive

4. What is JavaScript?

JavaScript is a popular programming
language that's built into all the major web
browsers and used to make web pages
interactive

5. What do we use to help us program
in JavaScript?

A_______

V_______

F_______

6. What do we use to help us program
in JavaScript?

Algorithms

Variables

Flowcharts

7. Algorithms

An algorithm is a step by step procedure for
_________

Algorithms can be used to create a set of
instructions to solve a problem – These are
called Programs and are executed by
computers.

8. Algorithms

An algorithm is a step by step procedure for
calculations

Algorithms can be used to create a set of
instructions to solve a problem – These are
called Programs and are executed by
computers.

9. Rules of creating a Flowchart

Use a ____ box at the beginning and ____ box
at the end.

Connect all symbols with _______.

Flowchart is read from top to bottom as shown
by the flow lines.

Mark a decision box with either a “Yes” or “No.”

10. Rules of creating a Flowchart

Use a start box at the beginning and stop box
at the end.

Connect all symbols with flow lines.

Flowchart is read from top to bottom as shown
by the flow lines.

Mark a decision box with either a “Yes” or “No.”

11. Name the symbol

12. Name the symbol
Decision box

13. Name the symbol

14. Name the symbol
Flowline

15. Name the symbol

16. Name the symbol
Input/Output

17. Name the symbol

18. Name the symbol
Start/Stop

19. Name the symbol

20. Name the symbol
Process box

22. Activity
In pairs of two, try to create a flowchart based on
this Algorithm
Find the perimeter of a square.
1.The Input is Length and Breadth
2. The process to be created is area = Length x
Breadth, Perimeter = 2 x (Length x Breadth)
3.The output is display area and display
perimeter