**ENGAGE**

1. As students enter the classroom, they should be given a group indicator that tells where to sit. Students will watch clips as a class: Scalar Multiplication, Scalar Matrix Multiplication, Multiply a Matrix by a Matrix from these websites

https://www.khanacademy.org/math/algebra/algebra-matrices/Basic_matrix_operations/e/scalar_matrix_multiplication

https://www.khanacademy.org/math/algebra/algebra-matrices/matrix_multiplication/e/multiplying_a_matrix_by_a_matrix

2. Students will listen and jot down important ideas. Inform the students that their mission will be to determine the process for multiplying Matrices.

**EXPLORE**

3. Student groups will receive scalar and matrix multiplication problems with step-by-step work and solutions. Students should develop strategies for solving these matrices. Student groups will have matrix problems and solutions of square and different size matrices. They should record these findings on their own paper (this information is to be placed on poster paper and problems can be keyed into their graphing calculators if needed).

4. The students should determine if their strategies are reputable and mathematically sound. They should look for patterns and list them on chart paper. The groups must agree on findings and be able to justify.

5. If students are unable to understand Matrices and dimensions, provide necessary feedback to move them forward with their thinking. Refer to the previous clips again for review.

**EXPLAIN**

6. The teacher should be sure that students are using Matrices and dimensions correctly.

7. Groups will discuss strategies discovered and begin justifying their ideas; Groups can use graphing calculators to input matrices for further justification.

8. Allow students time to prepare attractive posters to share with class to begin discussions about multiplying matrices, along with having the groups share their findings using the Smartview function of the calculator. Student Groups will receive exit slip the last 10 minutes of class. This should be turned in to the teacher as the groups exit the class.