4. Algebra and Functions 1

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4.1 Writing and Evaluating Algebraic Expressions**: (Emphasis)
4.1.1 Uses variables and appropriate operations to write an expression, an equation, an inequality (e.g., three less than a number is two, half as large as area A).
4.1.2 Uses the correct order of operations and the properties of rational numbers to evaluate algebraic expressions in one or more variables such as evaluate: 3(2x + 5)2 for x= -2.

4.2 Using Algebraic Terminology**: (Emphasis)
Uses algebraic terminology (e.g., variable, equation, term, coefficient, inequality, expression, constant) correctly.

4.3 Simplifying Algebraic Expressions:
Understands how to collect like terms with simple variables and natural number exponents () and understands that he can check his simplification (on the side) by substituting values into the beginning and end expression to see if they are the same, e.g. because x=2 or x=-1 doesn't work.

4.4 Solving One-Step Equations**: (Emphasis)
Solves 1-step equations like 3x=½ or -x/2=5 without errors.

4.5 Solving Equations: Variables on Both Sides**: (Emphasis)
Solves any linear equation with rational coefficients in one variable.

4.6 Checking a Solution of an Equation:
Knows how to checks the solution to any linear equation.

4.7 Solving Word Problems in One Variable**: (Emphasis)
Solve multistep problems involving rate, average speed, distance, and time or a direct variation.

• ‘Simplify the expression’ requires a ‘snake’ of equation signs and the first and end expression must be equal and
• ‘Solve the equation’ requires an equation with a variable followed by a list of equivalent equations – each with a single equal sign; the last equation ending with ‘variable = number’.