# What's Happening in Math 4?

## Reminders

• Join REMIND!!! Text @fhsmath4 to 81010

--> Class notes and homework assignments are posted DAILY!!!

--> Throwback Thursday Quizzes each week!

• Peer Tutoring Available Tuesday/Thursday in the Media Center after school

## MONDAY, SEPTEMBER 28, 2015

Section 2-6: Determinants and Inverses
Common Core Standard(s): N-VM-10, N-VM-12

I CAN: Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse.

I CAN: Work with 2 x 2 matrices as transformations of the plane and interpret the absolute value of the determinant in terms of area.

Assignment ~

• Homework 2-6: Determinants and Inverses
• Math XL For School: Spiral #5 due Thursday, 7am

## TUESDAY, SEPTEMBER 29, 2015

Section 2-7: Inverse Matrices and Systems
Common Core Standard(s): N-VM-8

I CAN: Add, subtract and multiply matrices of appropriate dimensions.

Assignment ~

• Homework 2-7: Inverse Matrices and Systems
• Math XL For School: Spiral #5 due Thursday, 7am

## WEDNESDAY, SEPTEMBER 30, 2015

Section 2-7: Inverse Matrices and Systems
Common Core Standard(s): N-VM-8

I CAN: Add, subtract and multiply matrices of appropriate dimensions.

Assignment ~

• Homework 2-7: Inverse Matrices and Systems
• Math XL For School: Spiral #5 due Thursday, 7am

## THURSDAY, OCTOBER 1, 2015

Unit Two Review: Matrices
Common Core Standard(s): N-VM-6, N-VM-7, N-VM-8, N-VM-9, N-VM-10, N-VM-12

I CAN: Use matrices to represent and manipulate data.

I CAN: Multiply matrices by scalars to produce new matrices.

I CAN: Add, subtract and multiply matrices of appropriate dimensions.

I CAN: Understand that, unlike multiplication of numbers, matrix multiplication for square matrices is not a commutative operation, but still satisfies the associative and distributive properties.

I CAN: Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse.

I CAN: Work with 2 x 2 matrices as transformations of the plane and interpret the absolute value of the determinant in terms of area.

Assignment ~

• Unit Two Review
• Math XL For School: Spiral #6 due Thursday, 7am

## FRIDAY, OCTOBER 2, 2015

Unit Two Review: Matrices
Common Core Standard(s): N-VM-6, N-VM-7, N-VM-8, N-VM-9, N-VM-10, N-VM-12

I CAN: Use matrices to represent and manipulate data.

I CAN: Multiply matrices by scalars to produce new matrices.

I CAN: Add, subtract and multiply matrices of appropriate dimensions.

I CAN: Understand that, unlike multiplication of numbers, matrix multiplication for square matrices is not a commutative operation, but still satisfies the associative and distributive properties.

I CAN: Understand that the zero and identity matrices play a role in matrix addition and multiplication similar to the role of 0 and 1 in real numbers. The determinant of a square matrix is nonzero if and only if the matrix has a multiplicative inverse.

I CAN: Work with 2 x 2 matrices as transformations of the plane and interpret the absolute value of the determinant in terms of area.

Assignment ~

• Math XL For School: Spiral #6 due Thursday, 7am