Activity
Washington State University

Washington State University: Tool for Elementary Row Operations

For Students 9th - 10th
This site from Washington State University is useful to students as it will break down and solve the matrix for them.
Unit Plan
Department of Defense

Do Dea: Algebra 1: Semester Ii: Solving Systems

For Students 9th - 10th Standards
A learning module through which students learn about solving systems including systems of equations, solving systems, systems in inequalities, the matrix, and statistics.
Handout
Purple Math

Purplemath: Determinants

For Students 9th - 10th Standards
A complete lesson on matrix determinants is offered here. From explanation of what a determinant is to how to find the determinant of a 2x2 or 3x3 matrix. Steps are written in and shown for the student or teacher's use. Also provided are...
PPT
Sophia Learning

Sophia: Scalar Multiplication: Lesson 3

For Students 9th - 10th Standards
This brief lesson will introduce scalars, and demonstrate how to perform scalar multiplication with matrices. It is 3 of 10 in the series titled "Scalar Multiplication."
Handout
Purple Math

Purplemath: Determinant Word Problems

For Students 9th - 10th Standards
Matrix determinants can be used to solve many algebra and geometry word problems. Among them: finding the area of a triangle, finding the area of a parallelogram, and finding the equation of a line between two points. These three...
PPT
Sophia Learning

Sophia: Scalar Multiplication: Lesson 1

For Students 9th - 10th Standards
This brief lesson will introduce scalars, and demonstrate how to perform scalar multiplication with matrices. It is 1 of 10 in the series titled "Scalar Multiplication."
Handout
Hofstra University

Hofstra: Matrix Algebra

For Students 9th - 10th Standards
This site explains what matrix algebra is. Includes examples. It also covers scalar multiples.
Activity
Mathematics Archives

Math Archives: Linear Equation Programs

For Students 9th - 10th Standards
This site contains a downloadable tool that can solve up to 30 simultaneous linear equations in 30 unknowns.
Lesson Plan
Other

Elmwood Park High School: Vertex Edge Graphs

For Students 10th - 12th
In this Unit, you will use vertex-edge graphs and Euler Circuits to help find optimum paths. Included are two lessons that help you develop the understanding and skill needed to solve problems about optimum paths and conflicts.
Handout
Purple Math

Purplemath: Minors and Cofactors: Expanding Along a Row

For Students 9th - 10th Standards
A "minor" is the determinant of the square matrix formed by deleting one row and one column from some larger square matrix. To find the determinant of the matrix A, you have to pick a row or a column of the matrix, find all the cofactors...
Activity
Texas Instruments

Texas Instruments: Numb3 Rs: Restaurant Rankings

For Teachers 9th - 10th
Based off of the hit television show NUMB3RS, this lesson combines the topics of graph theory and matrix multiplication in order to see the path of customer referrals to different fictional restaurants. Students create a matrix based off...
Graphic
Other

Write Design: Graphic Organizers: Compare and Contrast

For Students 9th - 10th
Lists and describes several types of graphic organizers which fall under the "compare and contrast" mold, including the Venn diagram, T-chart, and the compare/contrast matrix.
Handout
Wolfram Research

Wolfram Math World: Multiplicative Inverse

For Students 9th - 10th
This site explains multiplicative inverse in nonzero real and complex numbers, as well as matrices. Also discusses how to detect the multiplicative inverse of complex numbers in a table.
Unit Plan
University of Georgia

University of Georgia: Jim Wilson: Vertex Edge Connection

For Students 10th - 12th
Explanation of adjacency matrix and how to construct them with examples.
Website
Cool Math

Coolmath: Scalar Multiplication

For Students 9th - 10th Standards
This CoolMath resource will help students understand the concept of scalar multiplication.
Online Course
Massachusetts Institute of Technology

Mit: Open Course Ware: Courses: Biology: Cell Biology

For Teachers 9th - 10th
College-level course highlighting the biology of cells of higher organisms. Course topics include cellular membranes and organelles; cell growth and oncogenic transformation; transport, receptors, and cell signaling; the cytoskeleton,...
Graphic
Other

Write Design: Graphic Organizers: Hypothesize

For Students 9th - 10th
Lists and describes several types of graphic organizers which fall under the "hypothesis" mold, including a hypothesis matrix and a questions chart.
Graphic
North Central Regional Educational Laboratory

North Central Regional Educational Laboratory: Graphic Organizers

For Teachers 9th - 10th
Explanations and diagrams of nine graphic organizers: spider map, series-of-events chain, continuum scale, compare/contrast matrix, problem/solution outline, network tree, human interaction outline, fishbone map, and cycle.
Activity
Paul Dawkins

Paul's Online Notes: Algebra: Systems of Equations

For Students 9th - 10th Standards
Learners examine how to solve systems of equations. Topics investigated are linear systems with two variables, linear systems with three variables, augmented matrices, and nonlinear systems. Class notes, definitions, and examples with...
Handout
Stanford University

Stanford Encyclopedia of Philosophy: Pascal's Wager

For Students 9th - 10th
This site from the Stanford Encyclopedia of Philosophy discusses the philosophical and logic merits of Pascal's Wager, as well as the objections against it. Begins with a short historical and philosophical background to put the Wager in...
Handout
Other

Geeks for Geeks: Graph and Its Representations

For Students 10th - 12th
The choice of graph representation is situation-specific. It totally depends on the type of operations to be performed and ease of use. This reference explains the most commonly used representations of a graph: Adjacency Matrix and...
Activity
Texas Instruments

Texas Instruments: Linear Operator and Intro. To Eigenvalues & Eigenvectors

For Teachers 9th - 10th Standards
In this Derive activity, students use matrix multiplication as a tool for drawing the outlines of a simple stick house. They work in two dimensional space and show the results of multiplying a figure by 2 X 2 matrices.
Activity
Math Medics

S.o.s. Math: Systems of Equations in 2 Variables

For Students 9th - 10th Standards
Discusses how to solve systems of equations in two variables by reviewing ans showing examples of the four methods of solving linear equations: substitution, elimination, matrices, and graphing.
Handout
University College London

University College London: Elementary Row Operations

For Students 9th - 10th
Gives the basics on when to use matrices effectively. Example is included to make things clearer.

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