Curated OER
Operations on Matrices
A guided activity using the WolframAlpha computer program. The class explores the basic operations of adding, subtracting, multiplying and dividing matrices to solve problems.
Curated OER
Matrices: A Secret Weapon
Students perform operations with matrices. In this algebra lesson, students use cryptography and cryptanalysis to solve problems. They add, subtract, and multiply matrices.
Curated OER
Matrix
Learners examine characteristics of a matrix. After identifying the determinant of a matrix, students explore the properties of matrix multiplication. They review the properties of matrix multiplication and identify determinants in a...
Curated OER
Exploring Transformations with Matrices
A page right out of the Holt Geometry book. Use a graphing calculator and graph paper to explore transformations with matrices.
Curated OER
Secret Messages and Matrices
Young scholars use matrices and linear equations to decrypt a secret message. They receive a part of the encoded message to decode by means of inverse matrices. Pupils write critiques about the activity.
Curated OER
Addition & Multiplication of Matrices
Students add and multiply matrices. They explore the dimensions of products of a matrix. After observing problems on the overhead, students solve their own matrix problems. They list and define the properties of matrix multiplication.
Curated OER
NUMB3RS Activity: Coded Messages
Using matrix multiplication and inverse matrices, students are trying to uncode a coded message. Students encrypt simple messages using 2 x 2 matrices.
EngageNY
When Can We Reverse a Transformation? 2
The second lesson plan on finding inverse matrices asks class members to look for a pattern in the inverse matrix and test it to see if it works for all matrices. The teacher leads a discussion to refine the process in finding inverses,...
EngageNY
When Can We Reverse a Transformation? 1
Wait, let's start over — teach your class how to return to the beginning. The first lesson looking at inverse matrices introduces the concept of being able to undo a matrix transformation. Learners work with matrices with a determinant...
EngageNY
When Can We Reverse a Transformation? 3
When working with matrix multiplication, it all comes back around. The 31st portion of the unit is the third lesson plan on inverse matrices. The resource reviews the concepts of inverses and how to find them from the previous two...
EngageNY
Linear Transformations Review
Time for matrices and complex numbers to come together. Individuals use matrices to add and multiply complex numbers by a scalar. The instructional activity makes a strong connection between the operations and graphical transformations.
Curated OER
Choosing a College
How can mathematics help scholars choose a college? High schoolers learn how they can use decision matrices to rank colleges based on selected criteria. They also see how to weigh criteria using multiplication of the decision matrix by a...
PBL Pathways
Biscuits
Calculate the nutrients in different types of dog biscuits. Pupils create a technical report outlining the amount of calcium, protein, and carbohydrates in three types of dog biscuits. The project-based learning activity requires...
Benjamin Franklin High School
Saxon Math: Algebra 2 (Section 4)
This fourth of twelve units in a series continues the investigation of functions through equations and inequalities. However, the modular nature of the lessons in the section make this an excellent resource for any curriculum covering...
Curated OER
Matrix Multiplication
In this matrix multiplication worksheet, 11th graders solve and complete 8 different problems that include a number of steps in an activity. First, they use the matrix illustrated to respond to various questions referring to it. Then,...
Curated OER
Multiplying Matrices
In this multiplying matrices worksheet, 11th graders solve and complete 11 different problems that include 3 word problems. First, they determine the dimensions of each matrix product. Then, students multiply each of the given matrices....
Curated OER
Using Matrices for Data
In this matrices for data worksheet, 9th graders solve and complete 29 various types of problems that include using matrices to illustrate data. First, they determine the sum, difference and scalar product for each matrices shown. Then,...
Curated OER
Matrix Review
In this matrices worksheet, students solve 4 multi-step matrices problems. Students multiply matrices, find the determinant, inverse matrices, etc.
Curated OER
MA 371 - Matrices: Solving Systems and Determinants
In this solving systems and determinants worksheet, learners solve 4 multi-part short answer problems. Students solving systems of equations using matrices. Learners find a basis for row spaces and column spaces. Students find the...
Curated OER
Matrix Equations Not Requiring Inverses
In this matrix equations worksheet, students solve matrix equations involving addition, subtraction, and multiplication. This four-page worksheet contains 20 problems. Answers are provided on the last two pages.
Curated OER
Matrices
In this matrices worksheet, 9th graders solve and complete 11 different problems that include interpreting various matrices shown. First, they determine the operations that would result in the matrix illustrated. Then, students find the...
Curated OER
Exercises for Section 5.3: Matrices
In this matrices worksheet, students solve 26 systems of equations using matrices. Students solve each system using matrices. Students determine the rank and solutions of each matrix using row echelon form of each system.
Curated OER
Matrices
In this algebra worksheet, students solve problems using addition, multiplication and subtraction of matrices. There are 15 problems.
Curated OER
Row-Echelon Matrices
In this algebra instructional activity, students rewrite linear equations using matrices and solve using row-echelon form. There are 30 problems ranging from one equation to system of equations.