Core Videos - Praxis I Mathematics (Math Sample - Estimating)

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Click below to play a sample Core Video from our Praxis I Online Prep program.  This particular video focuses on estimating, a concept that typically appears on several Praxis I Mathematics questions.  In this video, we will review the basics on estimating and rounding, and we will also discuss a common rounding error that can cause test takers to arrive at the wrong answer, even though they've done the basic computations correctly.

When you purchase any of our Praxis I Online Prep programs, you'll get Core Videos like this one covering every key numbers & operations, algebra, geometry & measurement, and data analysis & probability concept you need to pass.  You'll learn the same key subject matter you would in our live classes, as well as strategies for success on the various multiple choice question types you can expect on the exam.  Then, once you are confident with the underlying subject matter, you can watch our Smart-STEM Virtual Tutoring videos, in which a tutor will show you how to apply your knowledge to the specific question types you are most likely to encounter on the actual test.

Both our Core Videos and Smart-STEM Virtual Tutoring videos are included in all our Online Prep programs!


Ready to get started?  Click below to enroll in Praxis I Online Prep and begin studying today!


Praxis I Online Prep


These Core Videos Are Included in All Our Praxis I Mathematics Online Prep Programs...

Below is a complete list of the Core Videos that are included in all our Praxis I Mathematics Online Prep programs.  These videos have been created by our industry-leading team of Teachers and Subject Matter Experts based on the official Content Specifications published for the Praxis I (PPST), along with research and feedback from students and test takers, so you get an engaging, easy-to-use, and highly-focused program that makes the absolute most of your study time and teaches you the exact content knowledge and strategy you need to pass the exam.

  • Order
  • Equivalence
  • Numeration and Place Value
  • Number Properties & Computation
  • Estimating (You are currently viewing this free sample video.)
  • Proportions
  • Percentages and Decimals
  • Logical Analysis of Statements and Contingencies
  • Using Algebra To Solve Single Variable Equations
  • Recognizing Alternative Methods of Solving Problems
  • Relational Patterns
  • Data Sufficiency
  • Measuring Length and Perimeter
  • Concepts of Measurements and Angles
  • Basic Properties of Circles, Triangles, Rectangles, Squares, Parallelograms, and Trapezoids
  • Right Triangles and the Pythagorean Theorem
  • Working with Multiple 2D Shapes
  • Conceptual Analysis of Geometry
  • Geometry in Other Scenarios
  • The XY-Coordinate Plane
  • Systems of Measurement
  • Using Tables
  • Using Numerical Data to Solve Math Problems
  • Determining Central Tendency
  • Calculating Probability


Enroll in Praxis I Online Prep, and you can begin watching all these Core Videos right now!  You'll also get instant access to a host of other great features, including Smart-STEM Virtual Tutoring Videos in which an expert tutor will discuss each question on your full-length, Praxis I Mathematics (Version 1) Practice Test, teaching you proven strategies for applying the subject matter knowledge you've gained from our Core Videos to the specific types of questions you are most likely to encounter on the real exam.