Unit 4: Finding the Unknown

Common Core Standards:

• Understand that rewriting an expression in different forms in a problem context can shed light on the problem and how the quantities in it are related.   7.EE.2 
• Use variables to represent quantities in a real-world or mathematical problem, and construct simple equations and inequalities to solve problems by reasoning about the quantities.   7.EE.4

2008 Math Standards:

• Evaluate an expression containing one or two variables by substituting numbers for the variables.   M07-S3C3-02
• Demonstrate and explain that the process of solving equations is a deductive proof.   M07-S5C2-10