# Our Latest News, Research, and Analysis

## ISEE Math Review – Prime Numbers

A prime number is a positive number that has only two factors: 1 and the number itself. Zero is not prime because it has many factors (any number times zero is zero). One is not prime because it only has one factor: the number [...]

## ISEE Math Review – Operations on Algebraic Expressions

In a nutshell, Algebra is arithmetic using known and unknown quantities. These unknown quantities are called variables and are represented as a letter (x) or a symbol. You have already evaluated some algebraic expressions by substituting certain values for some or all of the [...]

## Piqosity 2.0 Migration Updates

The Piqosity 2.0 migration just occurred on July 27th. We are aware of and actively working to patch bugs on a daily basis. As previously announced, this is a major update of the app's user experience including robust new features. We're trying to minimize [...]

## ISEE Math Review – Matrix Multiplication, Standard Deviation, and Trigonometry

The Upper Level ISEE is used for application into 9th through 12th grade. Thus, the ISEE sometimes includes some higher level math concepts designed for students who have completed Algebra II or Pre‐Calculus. We have included three of these concepts so that you know [...]

## ISEE Math Review – Polygons: Angles, Perimeter, and Area

Polygons are two‐dimensional shapes that are formed by three or more straight sides. You will be analyzing these geometric figures to find the total degree value of a polygon, the perimeter of a polygon, and the area of a polygon. The perimeter is the [...]