This lesson has twenty items to test your understanding of apostrophes. Print the exercise and punctuate correctly. Answers are provided at the end of the exercise, along with an online handout on the rules for using apostrophes.

In this tutorial, learn how to use this popular site for buying and selling homemade goods.

In this tutorial, you'll learn about the copyright protections that apply to work posted online, including images, text, videos, and more. You'll also learn about the rules that determine which of these resources you can use, and how you...

No matter where you go online, being a good digital citizen can make your experience smoother and safer. Thankfully, you can become a better digital citizen by following the simple steps outlined in this tutorial. [2:39]

How to set up the parental controls offered by your internet provider. Video tutorials for parents and carers. The UK Safer Internet Centre has provided this resource to help you find out how to prevent age inappropriate content being...

This online quiz from the Capital Community College is tightly focused on commas and introductory phrases. Ten questions ask the reader to insert commas where necessary, then check the sentence against the website's version. Vocabulary...

An interactive online quiz teaching about and correcting the use of comma splices in writing. A good tool for students to improve their writing skills.

Another interactive online quiz teaching about and correcting the use of comma splices in writing. A good tool for students to improve their writing skills.

This site, which is provided for by the University of Arizona, gives problems online that correspond to basic Mendelian genetics. Test your knowledge once you've read about Mendel and accessed the links to the various subjects covered in...

This clearly presented tutorial can be used by individuals or could be presented to a class. Be sure to take the interactive quiz for some thought-provoking exercises.

Online test consisting of 10 sentences. Decide whether the writer used the hilighted pronoun appropriately for academic writing.

Short online exercises from the Colby College that provide practice with understanding the conditional perfect tense. Click on the underlined words to get beautiful photos of the description of the word.

This tutorial has students follow a step-by-step guide to write their very own biography using that of Frederick Douglass as a model.

Straightforward tutorial explaining the rules about numbers in writing.

In this tutorial, learn how to send texts and make voice and video calls on your computer or mobile device using Google Hangouts.

In this tutorial, learn tips and strategies to keep your kids safe from hackers, predators, and cyberbullies.

Maintained by the Purdue University Writing Lab, this tutorial focuses specifically on the three prepositions mentioned in the title. After a general introduction, the site specifically discusses each preposition and presents examples.

Maintained by the Purdue University Writing Lab, this tutorial focuses specifically on the three prepositions mentioned in the title: "at", "in", and "on". Explains spatial relationships and examines "in" and "on" more closely.

Maintained by the Purdue University Writing Lab, this tutorial has pictures to represent the various relationship among objects in a given space. Good for visual learners.

A brief tutorial on the meaning of communication and what one-way and two-way communication look like. Includes short comprehension exercise at end.

Practice conjugating verbs in the preterite or imperfect tense in the context of weather. After filling in the blanks in this news story, you may check your answers.

A comprehensive learning exercise for the Hebrew language. Includes vocabulary, learning exercises and more.

Complete each of the 25 sentences in this exercise by typing the correct preposition into the box. Hint are available if needed, and answers can be checked when finished.

Complete each of the 25 sentences in this exercise by typing the correct preposition into the box. Hint are available if needed, and answers can be checked when finished.