English Language Arts
Grade 3
15 min
Sort words with shared prefixes and suffixes by meaning
Sort words with shared prefixes and suffixes by meaning
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Define the terms root word, prefix, and suffix.
Identify common prefixes (e.g., re-, un-, pre-) at the beginning of words.
Identify common suffixes (e.g., -ful, -less, -able) at the end of words.
Explain how a prefix or suffix changes a root word's meaning.
Sort a list of words into groups based on a shared prefix or suffix.
Explain the shared meaning of a group of words that have the same prefix or suffix.
Have you ever noticed that 'unhappy' and 'untie' both start with 'un'? 🤔 Let's find out what that special word part means!
Today, we are going to become word detectives! You will learn about special word parts called prefixes and suffixes that attach to root words to change their meaning. Knowing these parts he...
2
Key Concepts & Vocabulary
TermDefinitionExample
Root WordThe main part of a word that has its own meaning. It's the base that other parts can be added to.In the word 'helpful', the root word is 'help'.
PrefixA word part added to the BEGINNING of a root word. It changes the word's meaning.The prefix 'un-' in 'unhappy' means 'not', so 'unhappy' means 'not happy'.
SuffixA word part added to the END of a root word. It changes the word's meaning.The suffix '-ful' in 'helpful' means 'full of', so 'helpful' means 'full of help'.
MeaningWhat a word means or what it stands for.The meaning of 'joyful' is 'full of joy'.
SortTo put things into groups based on something they...
3
Key Rules & Conventions
The Prefix Rule
Prefix + Root Word = New Word
A prefix always goes at the beginning of a root word. Look for common prefixes like 're-' (again) and 'un-' (not) to get a clue about the word's new meaning.
The Suffix Rule
Root Word + Suffix = New Word
A suffix always goes at the end of a root word. Look for common suffixes like '-ful' (full of) and '-less' (without) to understand the word's new meaning.
The Shared Meaning Rule
Shared Prefix/Suffix = Shared Meaning Clue
When you see a group of words with the same prefix or suffix, they all share a part of their meaning. All words with '-less' will mean 'without' something.
4 more steps in this tutorial
Sign up free to access the complete tutorial with worked examples and practice.
Sign Up Free to ContinueSample Practice Questions
Challenging
Consider this list of words: `remake`, `unhappy`, `beautiful`, `useless`. Which two words can be sorted together because their affix (a prefix or a suffix) gives them an opposite or negative meaning?
A.remake and beautiful
B.unhappy and beautiful
C.unhappy and useless
D.remake and useless
Challenging
If you made one group of words where the suffix means 'full of' (like `hopeful`) and another group where the suffix means 'without' (like `hopeless`), which word would NOT fit in either group?
A.careful
B.penniless
C.joyful
D.kindness
Challenging
A student is sorting words into two groups based on the meaning of their affixes. Group A (prefix means 'not' or 'opposite'): `unhappy`, `dislike`. Group B (suffix means 'can be done'): `breakable`, `readable`. Which answer shows one word that could be added to Group A and one word that could be added to Group B?
A.uncle (Group A), table (Group B)
B.disappear (Group A), lovable (Group B)
C.reread (Group A), careful (Group B)
D.unusual (Group A), teacher (Group B)
Want to practice and check your answers?
Sign up to access all questions with instant feedback, explanations, and progress tracking.
Start Practicing Free