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**Assessment**

**New Jersey Assessment of Skills and Knowledge (NJ ASK)
Performance Level DescriptorsMathematics**

**(February 2009)**

**Grade 8 Math**

__Partially Proficient__

Students performing at the partially proficient level generally require prompting to demonstrate a basic knowledge of number sense, measuring geometric objects, number patterns, and vertex edge graphs at a limited level of performance.

In general, partially proficient students:

- Recognize scientific notation and match numbers in scientific notation to their standard notation counterparts
- Calculate perimeter and area for basic figures or shapes
- Classify prisms and pyramids according to their bases
- Identify a sphere and its diameter and radius
- Recognize and describe a number pattern

__Proficient__

Students performing at the proficient level may require prompting to demonstrate a basic knowledge of number sense, measuring geometric objects, number patterns, and vertex edge graphs at a moderate level of performance.

In general, proficient students:

- Convert numbers to scientific notation
- Order rational numbers (fraction, decimals, integers)
- Find the area and perimeter of combined shapes
- Find the surface area of various prisms and pyramids
- Match surface area and volume to the appropriate model
- Describe and extend a number pattern
- Identify a vertex edge graph and its parts

__Advanced Proficient__

Students performing at the advanced proficient level generally require minimal prompting to demonstrate knowledge of number sense, measuring geometric objects, number patterns, and vertex edge graphs at a high level of performance.

In general, advanced proficient students:

- Demonstrate the relative magnitude of rational numbers based on their distance from zero
- Compare and order rational numbers
- Find and compare the perimeter or area of a figure and its dilation
- Calculate the volume of three dimensional objects and their dilations and compare the two
- Find the surface area and volume of a sphere
- Create a pattern involving integers
- Follow a path on a vertex edge graph