English Language Arts
Grade 3
15 min
Determine the meaning of a word with -ful or -less
Determine the meaning of a word with -ful or -less
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Introduction & Learning Objectives
Learning Objectives
Define the suffixes -ful and -less.
Identify the base word in a word ending with -ful or -less.
Explain that -ful means 'full of' and -less means 'without'.
Determine the meaning of an unknown word by analyzing its base word and suffix.
Use words with -ful and -less correctly in their own sentences.
Apply the 'y to i' spelling rule when adding the suffix -ful.
Have you ever felt powerful 💪 or powerless 😟? The only difference in those words is a tiny ending that changes everything!
In this lesson, we will learn about two special word endings, called suffixes: -ful and -less. These suffixes are like secret codes that help us unlock the meaning of new words. Learning this skill will make you a super word detective!
Real-Worl...
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Key Concepts & Vocabulary
TermDefinitionExample
Base WordThe main part of a word that has its own meaning. It's the word you have before you add an ending.In the word 'helpful', the base word is 'help'.
SuffixA letter or group of letters added to the end of a base word to change its meaning.In 'helpful', the suffix is '-ful'.
Suffix: -fulThe suffix -ful means 'full of' or 'having a lot of' something.'Joyful' means full of joy.
Suffix: -lessThe suffix -less means 'without' or 'lacking' something.'Tasteless' means without taste.
MeaningWhat a word, sign, or sentence is telling you.The meaning of 'cold' is having a low temperature.
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Key Rules & Conventions
The 'Full Of' Rule
Base Word + -ful = Full of the Base Word
When you see '-ful' at the end of a word, it means the word is describing something as being 'full of' whatever the base word is. For example, 'color' + 'ful' = 'colorful', which means full of color.
The 'Without' Rule
Base Word + -less = Without the Base Word
When you see '-less' at the end of a word, it means the word is describing something as being 'without' whatever the base word is. For example, 'fear' + 'less' = 'fearless', which means without fear.
The 'Y to I' Spelling Rule
If a base word ends in 'y', change the 'y' to an 'i' before adding -ful...
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Challenging
Read this paragraph: 'The principal's address was meaningful to the teachers, who nodded and took notes. However, many students thought the speech was endless.' What does the use of 'meaningful' and 'endless' show?
A.The teachers and students had different points of view about the speech.
B.Everyone enjoyed the very long and important speech.
C.The speech had no meaning and no end.
D.The teachers did not understand the speech, but the students did.
Challenging
A character in a story gives a fearless speech standing up to a bully. What does the word 'fearless' tell us about the problem the character is addressing?
A.The problem is easy and not scary at all.
B.The problem is likely scary or dangerous, which makes the character's bravery special.
C.The character does not understand that the bully is a problem.
D.The problem has already been solved by someone else.
Challenging
A letter describes a house at a new address: 'The house was cheerless. The paint was peeling, the garden was full of weeds, and no lights were on inside.' Which detail best supports the meaning of 'cheerless'?
A.It was at a new address.
B.The house was a place to live.
C.The garden was full of weeds.
D.The letter described the house.
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