Education Technology
Algebra II: Matrices Classroom ActivitiesDownload
Areas_of_Polygons

Areas of Polygons

Use determinants of matrices as a tool to find the areas of triangles and quadrilaterals.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download4,954
A2_Coded_Messages_sm

Coded Messages

Determine the product of two matrices and calculate the inverse of the 2 X 2 matrix.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download4,699
Matrix_Inverses

Matrix Inverses

Modify a 2 X 2 matrix being multiplied by another 2 X 2 matrix until their product is the identity matrix.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download5,341

Matrix Multiplication

Examine matrix multiplication to identify the conditions necessary to be able to multiply two matrices.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
Download5,786
A2_Matrix_Transformations_sm

Matrix Transformations

Grab vertices of a polygon undergoing reflections and rotations in the coordinate plane to determine the transformation’s type.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download5,110
SolvingSystemsRowOps1_sm

Solving Systems with Row Operations 1

Use row operations to reduce an augmented matrix to its reduced row-echelon form.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download5,379
A2_SolvingSystemsRowOperations2_sm

Solving Systems with Row Operations 2

Use matrices as a tool to solve a system of three equations with three unknowns.
  • ax-icon-color-device
    TI-Nspire™ CX/CX II
  • ax-icon-color-device
    TI-Nspire™ CX CAS/CX II CAS
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download5,251
A2N U4 Determinant_sm

The Determinant of a Matrix

Calculate the determinant of a matrix and evaluate it to calculate the area of a triangle or quadrilateral.
  • TI-Nspire™ Navigator™
  • TI-Nspire™
  • TI-Nspire™ CAS
Download5,215