The eligible content for the Algebra I Keystone Exam is listed at…

http://static.pdesas.org/content/documents/Keystone_Content_Module_Standard_Blueprint_Algebra_I.pdf

Item and Scoring Samplers published by the Department of Education contain actual Keystone questions and answers.  Multiple sample tests are available at…

http://www.education.pa.gov/K-12/Assessment%20and%20Accountability/Pages/K-ISS.aspx#tab-1

Looking to review for the Algebra I Keystone Exam?  Here is a list of resources from KhanAcademy.org.

One-Variable Linear Equations:

https://www.khanacademy.org/math/algebra/one-variable-linear-equations

One-Variable Linear Inequalities:

 https://www.khanacademy.org/math/algebra/one-variable-linear-inequalities

Two-Variable Linear Equations:

https://www.khanacademy.org/math/algebra/two-var-linear-equations

Functions:

https://www.khanacademy.org/math/algebra/algebra-functions

Linear Word Problems:

https://www.khanacademy.org/math/algebra/linear-word-problems

Systems of Linear Equations:

https://www.khanacademy.org/math/algebra/systems-of-linear-equations

Graphs of Linear Inequalities:

https://www.khanacademy.org/math/algebra/two-variable-linear-inequalities

Square Roots

https://www.khanacademy.org/math/algebra/rational-exponents-and-radicals#alg1-simplify-square-roots

Polynomial Expressions:

https://www.khanacademy.org/math/algebra/introduction-to-polynomial-expressions

Polynomial Factorization:

https://www.khanacademy.org/math/algebra/polynomial-factorization

Basic Probability:

https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics

Box and Whisker Plots:

https://www.khanacademy.org/tag/box-and-whisker-plots

Mean/Median/Mode:

https://www.khanacademy.org/math/statistics-probability/displaying-describing-data#mean-median-basics