A-SSE.A. Interpret the structure of expressions.

A-SSE.A.1. Interpret expressions that represent a quantity in terms of its context.

• Animal Populations
• Delivery Trucks
• Delivery Trucks, assessment variation
• Exponential Parameters
• Increasing or Decreasing? Variation 1
• Kitchen Floor Tiles
• Mixing Candies
• Mixing Fertilizer
• Modeling London's Population
• Profit of a company, assessment variation
• Quadrupling Leads to Halving
• Radius of a Cylinder
• Seeing Dots
• The Bank Account
• The Physics Professor
• Throwing Horseshoes

A-SSE.A.1.a. Interpret parts of an expression, such as terms, factors, and coefficients.

• Animal Populations
• Delivery Trucks
• Delivery Trucks, assessment variation
• Exponential Parameters
• Mixing Candies
• The Bank Account

A-SSE.A.1.b. Interpret complicated expressions by viewing one or more of their parts as a single entity. For example, interpret $P(1+r)^n$ as the product of $P$ and a factor not depending on $P$.

• Increasing or Decreasing? Variation 1
• Increasing or Decreasing? Variation 2
• Mixing Fertilizer
• Radius of a Cylinder
• The Physics Professor

A-SSE.A.2. Use the structure of an expression to identify ways to rewrite it. For example, see $x^4 - y^4$ as $(x^2)^2 - (y^2)^2$, thus recognizing it as a difference of squares that can be factored as $(x^2 - y^2)(x^2 + y^2)$.

• A Cubic Identity
• Animal Populations
• Computations with Complex Numbers
• Equivalent Expressions
• Seeing Dots
• Sum of Even and Odd