Physics: Lenses and Mirrors

By |May 16th, 2019|Science, Test Prep|

Physics: Lenses and Mirrors Physics lessons teach that lenses and mirrors refract rays to form an image. Keeping track of whether this image is [...]

Biology & Ecology: Hardy-Weinberg Equilibrium

By |May 2nd, 2019|Science, Test Prep|

Biology & Ecology: Hardy-Weinberg Equilibrium Students in Biology and Ecology classes focus on learning how to use the Hardy-Weinberg Equilibrium Equations. The Hardy-Weinberg Equilibrium [...]

Multiplying Matrices

By |April 29th, 2019|Math, Test Prep|

Multiplying Matrices (Multiplying) Matrices can seem like a fun puzzle to some . . . or a confounding nightmare to others. This guide will [...]

Law of Sines and Law of Cosines

By |April 28th, 2019|Math, Test Prep|

Law of Sines and Law of Cosines The Law of Sines and the Law of Cosines are special trig rules that can be used [...]

Log Rules and Practice

By |April 28th, 2019|Math, Test Prep|

Log Rules and Practice Are you learning about and practicing Log Rules? Logarithms "undo" Exponents, and are thus a vital concept in Math and [...]

Simplifying Exponential Expressions

By |April 26th, 2019|Math, Science, Test Prep|

Simplifying Exponential Expressions Most math and science curriculum requires simplifying exponential expressions are a component. Despite the various ways exponents are used, there are [...]

Dangling Modifiers

By |April 23rd, 2019|English Grammar & Usage, ESL, Test Prep|

Dangling Modifiers Dangling modifiers make it so that the subject and its verb or adjective do not "match." This often leads to confusing and [...]

Past Perfect and Present Perfect Tenses

By |April 23rd, 2019|English Grammar & Usage, ESL, Test Prep|

Past Perfect and Present Perfect Tenses The conjugation of verbs can be confusing in any language, especially tenses like past perfect and present perfect.  [...]

Chemistry: Molecular Geometry

By |April 20th, 2019|Science, Test Prep|

Chemistry: Molecular Geometry In Chemistry, we learn about Molecular Geometry. The VESPR Theory allows us to predict models of molecular shapes, which thus helps [...]