**Essential Questions**

**Essential Questions**

- How can the volume and surface area of three-dimensional objects be calculated and compared?
- How can nets be used to represent three-dimensional objects?
- What strategies can be used to calculate tips, interest, sale prices, and discount problems?

**Concepts**

**Concepts**

- The volume of three-dimensional solids can be calculated by multiplying the area of its base by its height.
- Surface area and volume of rectangular prisms can be represented and analyzed using nets.
- Proportions and mental math strategies can be used to solve percent problems.

**Skills**

**Skills**

- Calculate the volume of three-dimensional solids, known as right prisms.
- Investigate the surface area and volume of a rectangular prism through nets.
- Apply strategies to calculate percent problems involving tips, interest, sale prices, and discounts.

__Vocabulary__

__Vocabulary__

**New Vocabulary Terms:**

- dimensions*
- face*
- lateral faces*
- net*
- percent*
- polyhedron*
- rectangular prism*
- surface area*
- volume*

**Old Vocabulary Terms:**- rate
- ratio