

IB Math HL AHL 1.14 – Introduction to Matrices
Topic: Number and Algebra
Level: IB Mathematics: Analysis and Approaches (HL)
File Type: Editable Slides / Worksheet
Overview
This resource introduces matrices as a structured way of representing and manipulating data.
Students will learn how to define matrices, perform algebraic and scalar operations, find determinants and inverses, and use matrices to solve systems of linear equations.
The lesson connects abstract algebraic concepts to practical applications such as linear transformations and real-world problem solving using inverse matrices.
Learning Objectives
By the end of this lesson, students will be able to:
- Define a matrix and identify its elements, rows, and columns.
- Perform basic operations including matrix addition, subtraction, and scalar multiplication.
- Carry out matrix multiplication using the dot product.
- Identify and interpret identity and zero matrices.
- Compute determinants and inverses of 2×2 and 3×3 matrices.
- Represent and solve systems of linear equations in matrix form
- Ax=b using inverse matrices.
What’s Included
- Introduction to matrices as rectangular arrays of elements organized by rows and columns.
- Visuals demonstrating key matrix components and terminology.
- Examples and explanations of matrix operations, including addition, subtraction, scalar multiplication, and dot product multiplication.
- Step-by-step derivations of determinant formulas for 2×2 and 3×3 matrices.
- Explanation of identity and zero matrices and their properties.
- Introduction to matrix equations
- Applied problem using hotel pricing data, demonstrating how to model and solve real-world systems with matrices.
- Complete worked solutions showing setup, substitution, and interpretation of results.
Topics Covered
- Matrix definition, notation, and structure.
- Matrix operations and properties.
- Determinants and inverses of matrices.
- Identity and zero matrices.
- Solving systems of equations using inverse matrices.
- Applications of matrices in real-world contexts.
Why You’ll Love It
- Provides a strong foundation for advanced linear algebra and transformation topics.
- Combines theoretical understanding with hands-on application.
- Step-by-step explanations suitable for classroom instruction or independent study.
- Connects matrix algebra to problem solving in realistic scenarios.
- Fully aligned with IB Math HL Topic 1: Number and Algebra.
Tags: IB Math HL, Matrices, Determinants, Matrix Inverse, Matrix Operations, Systems of Equations, Linear Algebra, Number and Algebra, IB Curriculum, Lesson Slides
Something went wrong, please try again later.
This resource hasn't been reviewed yet
To ensure quality for our reviews, only customers who have purchased this resource can review it
Report this resourceto let us know if it violates our terms and conditions.
Our customer service team will review your report and will be in touch.