

Topic: Number and Algebra
Level: IB Mathematics: Applications and Interpretation (SL)
File Type: Editable Slides / Worksheet
Overview
This resource introduces the use of technology to solve different types of equations efficiently, including systems of linear equations and polynomial equations.
Students will learn how to use a Graphical Display Calculator (GDC) to solve simultaneous equations, quadratic models, and higher-degree polynomial functions, reinforcing their understanding of algebraic and graphical methods.
The lesson bridges manual problem-solving techniques with technology-based methods, helping students verify solutions quickly and accurately.
Learning Objectives
By the end of this lesson, students will be able to:
- Use technology to solve systems of linear equations with up to three variables.
- Apply graphical and algebraic reasoning to identify intersections and verify solutions.
- Use technology to find the roots of polynomial equations.
- Understand how simultaneous equations can model real-world problems.
- Distinguish between algebraic and technological approaches to solving equations.
What’s Included
- Introduction to simultaneous equations and their solution methods (substitution, elimination, and graphing).
- Step-by-step examples demonstrating how to solve linear systems both algebraically and with a calculator.
- Practice problem requiring students to solve a quadratic function passing through three given points to find coefficients a, b, and c.
- Guided solutions showing how to substitute points into the equation and solve the resulting system.
- Explanation of polynomial equations and identification of degree based on highest exponent.
- Practice problem for finding roots of a cubic polynomial using technology.
Topics Covered
- Systems of linear equations and methods of solution.
- Solving quadratic and polynomial equations.
- Graphical interpretation of simultaneous equations.
- Finding intersections using GDCs.
- Identifying polynomial degree and root behavior.
- Application of technology in IB-style problems and assessments.
Why You’ll Love It
- Integrates algebraic problem-solving with technology-based verification.
- Builds practical GDC skills required for IB Math AI SL assessments.
- Clear visuals and step-by-step logic suitable for classroom demonstrations.
- Connects algebra, graphing, and polynomial theory in one cohesive lesson.
- Aligned with IB Math AI SL Topic 1: Number and Algebra and IB examination requirements.
Something went wrong, please try again later.
Not useful at all, consists of 12 slides, showing scratchpad rather than a calculator. The description seems to be more well written than the resource.
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