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
Grade 9 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
Time Needed
2 hours
Project Lessons & Activities
Attached activities and worksheets.
Practice Exercises & Worksheets
Interactive Media & Technology
Vocabulary:
Simultaneous Equations, Graph, Substitution, Elimination, Common point, Intersection, linear equation
Assessment
Participation, teacher observation, solving worksheets and checking homework.
Student Work
Student Data
Additional Resources