This is a 10-question, self-grading quiz/exercise over the Verb Expansion Rule.

This is a 10-question, self-grading exercise/quiz on the use of Apostrophes.

This is a list of links to 20 irregular verb, 20 conditional tense, 20 prepositions, and 20 idiom exercises/quizzes suitable for both regular and ESL students.

This is a 10-question, self-grading exercise/quiz on using the correct Prepositions for each sentence. It is suitable for ESL as well as regular English classes.

Put in commas wherever they are needed in the seventeen sentences. Answers are included at the end of the exercise.

This is a 10-question, self-grading exercise/quiz on the use of Apostrophes.

This is a 10-question, self-grading exercise/quiz on the use of Apostrophes.

This is a list of links to grammar usage exercises/quizzes including verbs, subject-verb agreement, pronouns, pronoun-antecedent agreement, parallel structure, modifier placement, and miscellaneous usage errors.

The Purdue University Writing Lab explains appositives and their punctuation. Example sentences followed by a ten-sentence exercise. Answer key supplied.

This resource provides practice with writing and punctuating sentences with introductory elements.

This lesson provides a quiz on commas and nonessential elements. Answers included.

This lesson provides a brief overview of semicolons, colons, parentheses, dashes, quotation marks, italics, and underlining.

This section of an online English-grammar book introduces and provides examples of different types of clauses. Because this is from a British source, it uses different terms to identify the types of clauses, calling an independent...

This section of the online textbook "An Introduction to Chemistry", shows the unexpected electron configurations of six elements. A chart compares their predicted configurations with their actual configurations. Also find links to...

This section of the online book "An Introduction to Chemistry", describes a shortcut that can be used for equation stoichiometry problems that include two gases. An example calculation which shows the shortcut being used is helpful. Also...

This audio book, narrated by author Mark Bishop, describes how to calculate density. The equation is given. Also find links to animations and tutorials for other sections of the online textbook, "An Introduction to Chemistry".

In-depth information on all stages of cell biology as well as lesson ideas, tutorial diagrams, and online labs.

This writing tutorial site consists of students' email questions to the Online Writing Lab about conjunctions.

Online grammar tutorial teaches the various spelling rules. L.9-10.2c Spelling

Students can take digital primary source images and using a step-by-step tutorial create an online movie telling a story about the Civil War.

A short tutorial is presented to demonstrate the product of a power law of exponents. Students can practice the concept using the online worksheet.

WyzAnt provides a simple tutorial to demonstrate how negative exponents are simplified. An online worksheet is provided for extra practice.

This tutorial demonstrates how to factor the GCF out of a polynomial expression. An online worksheet is provided for extra practice.

A short tutorial is presented to explain how the distributive property is used to simplify expressions. Students can practice the concept using the online worksheet provided.