Looking for a complete, student-friendly introduction to Numbers & Rounding for IB Math? These guided notes are designed for both IB Mathematics: Analysis & Approaches (AA) and Applications & Interpretation (AI) at the SL and HL levels, while also being suitable for Algebra 2, Pre-Calculus, and other high school mathematics courses.

This resource includes guided notes, worked examples, independent practice, exam-style questions, and a complete answer key to help students build confidence with foundational number concepts and mathematical communication.

Topics Covered:

✅ Number Classification (Natural, Whole, Integer, Rational, Irrational, Real, Imaginary, and Complex Numbers)

✅ Scientific Notation

• Converting between standard and scientific notation
• Operations with scientific notation
• Real-world applications

✅ Significant Figures

• Identifying significant figures
• Rounding to a specified number of significant figures
• Scientific notation and significant figures

✅ Limiting Value Principle

• Addition and subtraction rules
• Multiplication and division rules
• Mixed calculations

✅ Percent Error

• Calculating percent error
• Solving reverse percent error problems
• Real-world applications

HL Topics

✅ Showing Irrationality (HL Extension Topic)

• Using known irrational numbers to justify irrationality
• Rational vs. irrational expressions
• Proof-style reasoning (Does not require proof knowledge / principles)

✅ Greatest Possible Error (HL Extension Topic)

✅ Multi-Step Limiting Value Problems (HL Extension Topic)

What's Included?

• 15 pages of guided notes
• Complete answer key
• Teacher-led examples
• Independent student practice
• Exam-style application questions
• Clear definitions and step-by-step procedures
• Dedicated High Level (HL) extension section (3 pages)

Why Teachers Love This Resource

✔ Saves preparation time

✔ Structured note-taking format keeps students engaged

✔ Works for both AA and AI courses

✔ Provides gradual progression from guided examples to independent practice

✔ Excellent for introducing IB Topic 1: Number & Algebra concepts

✔ Can be used as:

• Guided notes
• Interactive notebook pages
• Review packets
• Homework assignments
• Sub plans
• Test preparation materials

Perfect For

• IB Math AA SL
• IB Math AA HL
• IB Math AI SL
• IB Math AI HL
• Algebra 2
• Pre-Calculus
• Advanced High School Mathematics
• Number Sense and Mathematical Foundations Units

Give your students the practice and structure they need to master scientific notation, significant figures, limiting values, percent error, irrational numbers, and error analysis with this comprehensive guided notes package!

IB Math, IB Mathematics AA, IB Mathematics AI, Number and Algebra, Scientific Notation, Significant Figures, Limiting Value Principle, Percent Error, Irrational Numbers, Greatest Possible Error, Error Bounds, Guided Notes, Math Notes, High School Math, Precalculus, Algebra 2, Exam Practice, Answer Key.