In this interactive game, students select either a prefix, or a suffix, or both to a word to make a new word. It uses common prefixes and suffixes such as pre, sub, re, un and ly, ful, less, er.

Fourth graders will learn about the prefix re- and how to apply this prefix to familiar words. After the direct instruction, 4th graders will show their understanding through thinking aloud and applying the knowledge to a new text.

Rules and examples for using a hyphen when adding the prefixes ex-, self-, and all-.

This tutorial makes the memorization of metric prefixes fun. Students can race the clock to see how well they have the prefixes memorized.

At this website, there is a large chart that "Contains some of the common roots and prefixes that make up the building blocks of numerous English words." Columns for roots/prefixes, meanings, and examples are included.

This interactive activity offers a practice for using the prefixes post-, pre-, dis-, in-, and un- that keeps track of score.

The official prefixes adopted in the US, as stated by the National Institute of Standards and Technology. Yoctograms? Zeptosecond? Yes indeed.

BBC Skillswise offers a factsheet about prefixes for teachers and students.

This brief slide show introduces some common prefixes for units of metric measurement.

This Skillswise site focuses on prefixes and suffixes. Included are a video about why learning about these additions to root words is important, fact sheets and worksheets for instruction. The Skillswise sites from BBC are geared to...

This tutorial focuses on prefixes and suffixes using a slideshow and two videos. The first video discusses affixes including prefixes and suffixes and how they work; it also has an embedded YouTube music video about the power of...

A prefix has the power to change the meaning and grammatical role of the original word. Improve your technical writing skills by refining your comprehension of how words are strung together to form meaning. Master the art of effective...

[Free Registration/Login Required] In this interactive you will move the point to different metric prefixes and observe how the decimal point moves and the value of the number changes. You will need a sign-in to access this media, but it...

[Free Registration/Login Required] A lesson in which students learn to use the meanings of prefixes to help determine the meanings of unfamiliar words. Lesson includes directions for direct teaching, guided practice, and independent...

This game is designed to help students learn the metric prefixes and how to convert large and small numbers into numbers written with a metric prefix. A video to help explain the game is here:...

Rules and examples for using a hyphen between a prefix and a capitalized word.

Create words using prefixes, suffixes, and root words. Group the words together as words are created and add them to the word bank. Add your own prefixes, suffixes, and root words to extend the activity.

In this activity provided by SMART, students will learn the differences between prefixes and suffixes, as well as identify several different words and use them in sentences to help solidify which types of words represent prefixes and...

In this concentration game, students match prefixes with their definitions.

[Free Registration/Login Required] A prefix is a group of letters that go in front of a word. Using a prefix changes the meaning of that word. This lesson will cover the following prefixes: super, sub, un, pre, uni, bi, tri.

[Free Registration/Login Required] This flipchart reviews prefixes, root words, and suffixes. Students practice constructing sentences.

[Free Registration/Login Required] To recognize and spell common prefixes, and how these influence word meaning (e.g. un, de, dis, re, pre).

Learn prefix skills by taking the quiz using "Matching, Concentration, Flashcards, or Word Search."

Pop the balloons that contain the correct prefix.