Unpacked Content
Knowledge
Students know:
- how to add, subtract, multiply, and divide rational numbers.
- A(b + c) = ab + ac.
- how to find the greatest common factor of two or more terms.
Skills
Students are able to:
- apply properties of operations as strategies to add and subtract linear expressions with rational coefficients.
- Apply properties of operations as strategies to factor linear expressions with rational coefficients.
- Apply properties of operations as strategies to expand linear expressions with rational coefficients.
Understanding
Students understand that:
- only like terms can be combined, e.g., x + y = x + y but x + x = 2x.
- To factor an expression, one must factor out the greatest common factor.
- There are many different ways to write the same expression.
