Education Technology

### Addition and Subtraction of Rational Numbers: Part 1

This lesson involves using pattern blocks to model addition and subtraction of positive mixed numbers for randomly generated numeric expressions.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Addition and Subtraction of Rational Numbers: Part 2

This lesson involves representing addition and subtraction of signed mixed numbers on a number line for a randomly generated target sum or difference.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Multiplication and Division of Rational Numbers

This lesson involves using an interactive area model to solve multiplication and division problems with positive decimals and mixed numbers.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS

### Bathroom Flooring

This lesson involves students tiling the floors of three bathrooms with provided tiles and determining the cost of the floor based on the unit price of each tile.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### Repeating Decimals and Fractions

This lesson involves students exploring patterns in repeating decimals that represent fractions with denominators 9, 99, and 999.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS

### What is Root 2?

This lesson involves estimating the values of two irrational numbers using a number line with increasing precision of scale.
• TI-Nspire™ CX/CX II
• TI-Nspire™ CX CAS/CX II CAS
• TI-Nspire™
• TI-Nspire™ CAS