### Grade 4 - Unit 4 Math

 Unit 4: Algebra and Functions Text Mr. Yen's Videos Youtube Video Names and Links Page Chapter 8 - Variables Location: Algebra Lesson 1 - Hands On: Variables 168 Lesson 2 - Write and Evaluate Algebraic Expressions 170 Algebraic Expressions Algebraic Expressions Lesson 3 - Solve Addition and Subtraction Equations 174 Solving Algebraic Addition and Subtraction Equations Algebra - Solving Addition and Subtraction Equations Lesson 4 - Solve Multiplication and Division Equations 176 Solving Algebraic Multiplication and Division Equations Algebra - Solving Multiplication and Division Equations Lesson 5 - Problem Solving Plan: Use Equations 180 Solving Equations Solving Algebraic Equations Chapter Review / Test 186 Chapter 9 - Equations with Two Variables Location: Algebra Lesson 1 - Hands On: Function Tables 190 Lesson 2 - Write Function Rules Using One Variable 192 Function Tables Function Tables Lesson 3 - Write Function Rules Using Two Variables 196 More Function Tables More Function Tables Lesson 4 - Problem Solving:  Battery Point Lighthouse 200 Chapter Review / Test 204