Subject-Verb Agreement
Subject-Verb Agreement We often hear teachers discuss "Subject-Verb Agreement." So we know that verbs should agree with the subject. As simple as this sounds, [...]
Physics: Lenses and Mirrors
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
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 [...]
Prep for the HSPT Verbal Section
Prep for the HSPT Verbal Section The HSPT is a high school placement test given to 8th graders who want to be accepted into [...]
Multiplying Matrices
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
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
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
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
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
Past Perfect and Present Perfect Tenses The conjugation of verbs can be confusing in any language, especially tenses like past perfect and present perfect. [...]