# Solving Simultaneous Equations Graphically

## Description

Use a real coordinate system on the floor and ropes to draw straight lines and find the point of intersection.

## Learning Goals

Find the solution of two simultaneous equations graphically.

## Depth of Knowledge

Students will be able to represent different linear equations graphically. They will also change the subject of some equations to make y the subject to be able to represent the equation. They will also be able differentiate between different kinds of pairs of lines ( intersecting, parallel and coincident).

## SEC Standards

Standard 9.4.3: Use graphical methods to find the approximate solution of a pair of simultaneous linear equations with two unknowns, on paper and using ICT.

## Student Levels & Needs

This project is intended to all levels of students. It has kinesthetic, tactile, visual and auditory learning styles.

## Teacher Preparation

Teachers need to revise to students how to plot a straight line give its equation. Teachers need to revise to students to change the subject of a formula. Then explain the meaning of the point of intersection of two lines and how to read it.

## Materials Needed

ropes- coordinate plane - logico boards - bell

2 hours

## Project Lessons & Activities

Attached activities and worksheets.

## Assessment

Participation, teacher observation, solving worksheets and checking homework.