McDougal Littell: Spelling SkillBuilders Grade 7 Lesson 5

Name _______________________________________

Lesson 5 Prefixes and roots

re + sist = resist de + tain = detain

in + sist = insist con + tain = contain

con + flict = conflict pro + gress + ion = progression

in + flict = inflict re + gress + ion = regression

de + script + ion = description de + cis + ion = decision

in + script + ion = inscription in + cis + ion = incision

pre + script + ion = prescription pre + cis + ion = precision

in + vent + ion = invention in + clude = include

con + vent + ion = convention ex + clude = exclude

pre + vent + ion = prevention con + clude = conclude

TERMS TO KNOW: A root is a word part that cannot stand alone. It must be joined to other word parts to form words.

Prefix	+	Root	+	Suffix	=	Word
in	+	cis	+	ion	=	incision

1.	Before the prefixes and suffixes are added, are the letter groups complete words? __________

2.	A __________ is a type of word part that must be joined to other word parts to form complete words.

3.	How many different roots are used in the word list? __________ How many different prefixes are used? __________ What suffix has been added to some roots? __________

4.	Do resist and insist have the same root? __________ Do they have the same meaning? __________

Lesson Generalization A root can be joined with many different prefixes. Changing the prefix forms a new word with a different meaning.

The root clude means "to close."

exclude = to close out or shut out include = to close in