Scaffolding Strategies for each Objective Thomas Chacko Grade Level: 9th grade

1. Big IDEAS

1.1. There are precise ways to solve linear equations

1.2. There are systematic ways to solve linear equations

2. Scaffolding Idea Objective 1

2.1. Define numeric equation

2.1.1. What kind of equation is this? 29 + 5 = 34 Why? Can the numbers move around? Why?

2.2. Define algebraic equation

2.2.1. y = 100/x + 50: when x become larger what happens to y? a) value y increases b) value y has no change c) value y approaches to 50 d)value y approaches to 100

2.3. Define linear equation

2.3.1. One minute essay: Define linear equation.

3. Scaffolding Idea Objective 2

3.1. Steps to solve linear equation

3.1.1. An equal sign means equivalence of both sides e.g 2x + 3 = 4x- 7

3.1.2. d/3 +d/5 = 1 eliminate fraction add like terms isolate the unknown

3.1.3. Use Distribute property 2(x - 1) + x = 10 combine like terms inverse order of operations find the value of x

4. Scaffolding Idea Objective 3

4.1. Solve the linear equations

4.1.1. Isolate x in order to solve the equation 7x - 1 = 6

4.1.2. Plug the value of x in the original equation

5. Solve the linear equation 10(x -2) + 2 = 6 + 2x

5.1. 1. Distribute with 10. 2. Combine like terms. 3. Get the variable term on one side by itself. 4. Subtract 2x from both sides. 5. Isolate the variable. 6. Check your answer by plugging it into the original equation