Education Technology

# Activities

• ##### Subject Area

• Standard: National Curriculum 7-10: Number and Algebra: Linear and non-Linear Relationships

Middle

60 Minutes

• ##### Device
• TI-Nspire™
• TI-Nspire™ CAS
• TI-Nspire™ Navigator™
• ##### Software

TI-Nspire™
TI-Nspire™ CAS
TI-Nspire™ CAS Navigator™ NC System
TI-Nspire™ Navigator™ NC System

4.2

## Credit Cards

#### Activity Overview

How can you tell if a credit card number is a fake? Those seemingly random numbers on a credit card are not random, algorithms exist to detect whether or not they are genuine. If you’re building a website with an online payment system you might want to write some code to instantly detect whether or not the credit card number is a fake.

#### Objectives

• ACMNA192 - Simplify algebraic expressions involving the four operations
• ACMNA194 - Solve linear equations using algebraic and graphical techniques. Verify solutions by substitution.
• ACTDIP040 - Design algorithms represented diagrammatically and in structured English and validate algorithms and programs through tracing and test cases

#### Vocabulary

 Mathematics Coding Mod Variable Integer For / Endfor If / Then / Else Request Display