How can knowing word parts help you determine the meaning of unfamiliar words? Example: Prefix, suffix, root words. Un success ful

Prefixes, Suffixes, and Base Words Learn how to use prefixes, suffixes, and base words to find the meanings of words.

Base Words A base word is a word in its simplest form. A base word has nothing added to it. Examples: Do Heat Write Read Pack

Base Words Write the base words. Played Running Reheat Quickly Unhappy

Prefixes Prefixes are added to the beginning of a base word. They change the meaning of the base word. Un + happy = unhappy Re + do = redo

Prefixes The prefix re means again. Reread means to read again. Rewrite means to write again. What does reheat mean? The prefix un means not or the opposite of. Uncomfortable means not comfortable. Unpack means the opposite of pack. What does unclear mean?

IMPORTANT TERMS TO KNOW The Prefix Pre means The Prefix Non means The Prefix Mis means The prefix Con means The Prefix Sub means The Prefix Post means The Prefix Trans means BEFORE Not Wrong or Bad With or Together Below After Across

____do ____happy ____clear ____read ____pack The opposite of pack Prefixes Add a prefix to the beginning of each word to make a new word. Draw a line form the word to its meaning. ____do ____happy ____clear ____read ____pack The opposite of pack Do again Opposite of clear Read again Not happy

Opposite Prefixes Pre (before) Over in Post Under Ex When using any of the above prefixes, no change is necessary to the base word.

Suffixes Suffixes are added to the end of a base word. They change the meaning of the base word. wonder + ful = wonderful rest + ful = restful

Suffixes The suffix ful means full of. Colorful means full of color. Playful means full of play. What does thankful mean? The suffix ly means in a certain way. Quickly means in a quick way. Loudly means in a loud way. What does suddenly mean?

Suffixes Add a suffix to the end of each base word Suffixes Add a suffix to the end of each base word. Draw a line to its new meaning. Loud____ Color____ Wonder____ Sudden_____ Play____ In a loud way Full of play Full of wonder In a sudden way Full of color

Match each word with its definition. healthful in a sad way slowly to heat again the opposite of lock unlock to read again reheat full of health sadly in a slow way uncomfortable not comfortable reread