Sal solves a complex determinant problem from the 2010 IIT entrance test. Knowledge of determinants, the exponential form of complex numbers, trigonometric ratios, and algebraic thinking are all utilized here.

A matrix is just a fancy way of making a table. Young scholars explore operations with matrices with the first lessons in the final module of a 10-unit Algebra II series. After adding, subtracting, and multiplying matrices, pupils use...

Determine how much a linear transformation alters area. The seventh segment in a series of 15 makes the connection between the determinant and the scale factor of areas during a linear transformation. The video goes on to explain the...

Use matrices to solve systems of equations. The interactive introduces Cramer's Rule, using determinants of matrices to solve systems of equations. Color coding helps pupils place entries correctly from the system.

I don't always make vector jokes, but when I do, IJK. Vector addition using multiple methods, scalar multiplication, vector subtraction, vector components, relative velocities, free body diagrams, and so much more Are covered in this...

No, matrices are not what mathematicians sleep on. Lesson begins with identifying the dimensions of matrices then moves on to multiply them. It also provides guided practice problems that get progressively more complex.

Practicing determinant calculations and their applications is the focus of this detailed skills practice worksheet. A summary of steps at the beginning of each section keeps young mathematicians on track, while clear and simple numbers...

Learners use the determinant of the quadratic formula to find the number of real number solutions that exist in each given quadratic function. 

A TI-nspire lesson to find determinants of matrices using calculators. The class follows along in this step by step activity to explore operations on matrices. They will mostly be multiplying and at the end of the lesson they are guided...

Perform operations to add, subtract, multiply and divide matrices. Then solve problems with vectors using matrices. A three day lesson: Matrix Madness, Mystical Matrices, and Decode the Encode. The last lesson has prizes that the class...

Learners investigate matrices by exploring addition, subtraction and multiplication of matrices.  Students find the determinant and inverse of a matrix.  The lesson includes a set of practice problems

Your economists will relate to the choices at hand in this personal budgeting scenario. A passage describes Bob's predicament: he's going away to college and must buy his own clothes, including the pricey Levis he wants to buy 8 of....

Students 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...

In this solving systems and determinants worksheet, young scholars solve 4 multi-part short answer problems. Students solving systems of equations using matrices. Young scholars find a basis for row spaces and column spaces. Students...

High schoolers calculate the determinant. In this algebra lesson, students find the determinant and use to calculate the area of a triangle. They calculate the area of a quadrilateral in a plane.

In this matrices worksheet, students solve 4 multi-step matrices problems.  Students multiply matrices, find the determinant, inverse matrices, etc.

Mathematicians are introduced to Cramer’s Rule and use it to solve three systems that have one solution, no solutions, and an infinite number of solutions.  Young scholars use TI-Nspire to graph the systems to verify their answers and...

In this Algebra II instructional activity, 11th graders find the determinant of 2x2 or 3x3 matrix and use the determinant to find the inverse of the matrix.  The two page instructional activity contains explanation of topic, a worked...

In this algebra worksheet, students solve systems of equations.  They evaluate matrix problems and identify the determinant.  This two-page worksheet contains 13 problems.

Students determine eigenvectors and eigenvalues for a matrix. Students diagonalize a matrix. Similar matrices are defined. Determinant formula is given for an degree n polynomial.

In this matrices instructional activity, students find the value of 14 2x2 matrices. They evaluate one addition of matrices problem. Students give an example of a 2x2 matrix with a given determinant.

Young mathematicians represent a triangle with a matrix and use the determinant to find the area of three given triangles. Learners also verify the formula for area of a triangle. 

In this determinants instructional activity, students solve and complete 12 different types of problems. First, they evaluate the determinant in each matrix illustrated. Then, students determine the value of x that makes the determinant...