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02 Adding and Matrix Basics.notebook
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October 01, 2018
Aug 282:51 PM
CLASS OPENER (Do NOW):
DAY 8 September 27/28
Solve for given variable
02 Adding and Matrix Basics.notebook
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October 01, 2018
Sep 410:42 PM
Welcome to GEOGoal:Constructing/Interpreting Matrices + Combining Matrices
Agenda• Review: Unit 2 Performance Indictors • Explore Matrices: Lesson 1, Investigation 1 (P.73 # 1,2,4)• Notes: Matrix Basics + Practice• Practice: • Announcements: Homework
02 Adding and Matrix Basics.notebook
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Sep 2411:13 PM
Unit 2: MatricesPerformance Indicator Level 1 Level 2 Level 3 Level 4
PI 2.1 Add, subtract, and multiply matrices by scalars to produce new matrices
• I can combine two matrices using addition and subtraction
• I can create a new matrix using scalar multiplication
• Given a scenario, I can create a matrix and interpret its entries
I can combine matrices using multiple operations (add/sub/scalar) without context
Given a context, I can apply matrices to solve problems using combinations of addition, subtraction, and scalar
Given a context, I can apply matrices to solve problems using addition, subtraction, and scalar multiplication (without a prescribed procedure)
PI 2.2 Multiply matrices of appropriate dimensions.
I can multiply a one row matrix by another matrix.
Given the dimensions of a matrix, I can create another matrix that can be multiplied with it in any order.I can determine if two matrices can be multiplied.
I can multiply matrices with more than one row
Given a context, I can apply matrices to solve problems using multiplication (without a prescribed procedure)
PI 2.3 Solve systems of linear equations using matrices
I can convert a system of equations into matrix equations (and vice versa)
I can solve for 2 variables in a system of linear equations using matrices (given in standard form)
I can solve for 2 or more variables in a system of linear equations using matrices (given any form of equation or context)
I can create a matrix equation to solve problems given a context and solve it using matricesExplain how inverse matrices help solve systems of linear equations
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Introducing Matrices
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Unit 2 The Matrix (Matrices)Unit 2, Lesson 1, Investigation 1 (p. 73 #1, 2, 4) (U2, L1, I1)
Complete in notes Section
Notice: Each matrix must have a title, row names, and column names!
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Matrix Basics
A = The Dimensions of a matrix are represented byits ROWS x COLUMNS
Each entry (element) in the matrix can be described by its position
A12 = A23 =
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Equal Matrices Solve for all variables in the equal matrices
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October 01, 2018
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Practice with Group
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Check your answers
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U2, L1, Inv. 3 p. 84 #3 6 (Combining Matrices)
Do your matrices have:TITLE?Row labels?Column labels?
Label your notes!! date, page, title AND PI 2.1
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October 01, 2018
Oct 13:28 PM
U2, L1, Inv. 3 p. 84 #3 6 (Combining Matrices)
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October 01, 2018
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Combining Matrices Without ContextEx 1
Ex 2
Ex 3
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Aug 1012:56 PM
Class AnnouncementsHomework: Homework # 3→ Complete homework survey
(Due Oct.1/2)
Need Help?
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October 01, 2018
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