Turn bases into describing words that show possibility, presence, absence, or tendency.
5 targets with matrices3 core roots revisited8 mastery checks
THE GIST
The idea behind these word parts
Adjective endings express different kinds of description: portable means able to be carried; powerless means lacking power.
Go deeper · how the parts work in context
Port supplies carry and -able supplies able to be. In powerful and powerless, the base stays while -ful and -less change the meaning. Learn the established spelling: -able and -ible are not freely interchangeable.
port + able → portable
The portable display folds into a small case.
Portable describes the display as easy to carry or move.
Word parts suggest a meaning; the sentence helps confirm it. If the clues are not enough, check a dictionary.
EXPLORE THE WORD PARTS
Meaning, connections, and practice
Choose a word part. Read its gist, explore its map and matrix, then answer its three checks. Open the extra explanation whenever you need it.
How to use a matrix
Leading part + base + ending → word. Choose cells from left to right. Only paths that make one of the listed words are enabled. ∅ means no part is added.
The center can be a root or a whole word. Some cells contain combining forms or grouped endings. Related bases can change spelling, as in scribe/script or mit/miss; follow the spelling notes.
Keep a word for comparison, then select another word to see which parts and meanings changed.
01
-able / -ible
capable of, fit for, or worthy of
adjective maker
The gist: washable means capable of being washed. The clue -able / -ible connects it to capable of, fit for, or worthy of.
Why it works · examples & details
The shared clue is the meaning or word job added by the ending: capable of, fit for, or worthy of. Compare washable (capable of being washed) with accessible (capable of being reached or used). The complete word’s definition is more specific than the word-part clue.
ac + cess + ible → accessible Able to be reached, entered, or used. It works as a adjective in this example.
In a sentence: Bank credit was more accessible to Anglo farmers than to Mexican farmers during drought.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore -able / -ible · map, matrix & checks
washablecapable of being washed
accessiblecapable of being reached or used
Suffix connections map: -able / -ible
Compare this ending across different bases. Explain what it adds to each word’s meaning or grammatical job. Select a word to load its path in the matrix below.
Read the family first.
-able / -iblecapable of, fit for, or worthy of
wash + able
Capable of being washed.
ac + cess + ibleadjective
Able to be reached, entered, or used.
Bank credit was more accessible to Anglo farmers than to Mexican farmers during drought.
port + ableadjective
Easy to carry or move from place to place.
Japanese Americans ordered from their homes were limited to portable belongings they could carry.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with -able / -ible 3 word paths
-able / -ible: capable of, fit for, or worthy of. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
wash + able → washable
Capable of being washed.
What changed?
Starting word
Selected word
Compare two paths
washable: Capable of being washed. portable: Easy to carry or move from place to place.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
wash + able
washable
Capable of being washed.
ac + cess + ible
accessible
Able to be reached, entered, or used.
port + able
portable
Easy to carry or move from place to place.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
02
-ful
full of or having
adjective maker
The gist: hopeful means full of or showing hope. The clue -ful connects it to full of or having.
Why it works · examples & details
The shared clue is the meaning or word job added by the ending: full of or having. Compare hopeful (full of or showing hope) with careful (having or showing care). The complete word’s definition is more specific than the word-part clue.
hope + ful → hopeful Feeling that a desired outcome is possible. It works as a adjective in this example.
In a sentence: Hopeful migrants traveled north after hearing about wages and jobs.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore -ful · map, matrix & checks
hopefulfull of or showing hope
carefulhaving or showing care
Suffix connections map: -ful
Compare this ending across different bases. Explain what it adds to each word’s meaning or grammatical job. Select a word to load its path in the matrix below.
Read the family first.
-fulfull of or having
hope + fuladjective
Feeling that a desired outcome is possible.
Hopeful migrants traveled north after hearing about wages and jobs.
care + fuladjective
Giving close attention to avoid mistakes or harm.
A careful reading of the Dawes Act asks who controlled land before and after allotment.
re + spect + fuladjective
Showing consideration for someone’s dignity or rights.
Respectful words did not guarantee respectful treatment of Native land claims.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with -ful 3 word paths
-ful: full of or having. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
hope + ful → hopeful
Feeling that a desired outcome is possible.
adjective
Hopeful migrants traveled north after hearing about wages and jobs.
What changed?
Starting word
Selected word
Compare two paths
hopeful: Feeling that a desired outcome is possible. respectful: Showing consideration for someone’s dignity or rights.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
hope + ful
hopeful
Feeling that a desired outcome is possible.
care + ful
careful
Giving close attention to avoid mistakes or harm.
re + spect + ful
respectful
Showing consideration for someone’s dignity or rights.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
03
-less
without or lacking
adjective maker
The gist: fearless means without fear. The clue -less connects it to without or lacking.
Why it works · examples & details
The shared clue is the meaning or word job added by the ending: without or lacking. Compare fearless (without fear) with endless (having no end). The complete word’s definition is more specific than the word-part clue.
power + less → powerless Lacking the ability to control a situation. It works as a adjective in this example.
In a sentence: Striking workers refused to accept the idea that they were powerless.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore -less · map, matrix & checks
fearlesswithout fear
endlesshaving no end
Suffix connections map: -less
Compare this ending across different bases. Explain what it adds to each word’s meaning or grammatical job. Select a word to load its path in the matrix below.
Read the family first.
-lesswithout or lacking
fear + less
Without fear.
end + less
Having no end.
power + lessadjective
Lacking the ability to control a situation.
Striking workers refused to accept the idea that they were powerless.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with -less 3 word paths
-less: without or lacking. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
fear + less → fearless
Without fear.
What changed?
Starting word
Selected word
Compare two paths
fearless: Without fear. powerless: Lacking the ability to control a situation.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
fear + less
fearless
Without fear.
end + less
endless
Having no end.
power + less
powerless
Lacking the ability to control a situation.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
04
-y
characterized by, having, or full of
adjective maker
The gist: cloudy means characterized by clouds. The clue -y connects it to characterized by, having, or full of.
Why it works · examples & details
The shared clue is the meaning or word job added by the ending: characterized by, having, or full of. Compare cloudy (characterized by clouds) with salty (having the taste or presence of salt). The complete word’s definition is more specific than the word-part clue.
risk + y → risky Involving a possibility of harm or loss. It works as a adjective in this example.
In a sentence: A strike was risky when employers could evict workers’ families.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore -y · map, matrix & checks
cloudycharacterized by clouds
saltyhaving the taste or presence of salt
Suffix connections map: -y
Compare this ending across different bases. Explain what it adds to each word’s meaning or grammatical job. Select a word to load its path in the matrix below.
Read the family first.
-ycharacterized by, having, or full of
cloud + y
Characterized by clouds.
salt + y
Having the taste or presence of salt.
risk + yadjective
Involving a possibility of harm or loss.
A strike was risky when employers could evict workers’ families.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with -y 3 word paths
-y: characterized by, having, or full of. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
cloud + y → cloudy
Characterized by clouds.
What changed?
Starting word
Selected word
Compare two paths
cloudy: Characterized by clouds. risky: Involving a possibility of harm or loss.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
cloud + y
cloudy
Characterized by clouds.
salt + y
salty
Having the taste or presence of salt.
risk + y
risky
Involving a possibility of harm or loss.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
05
-ive
having a nature, function, or tendency
adjective maker
The gist: active means having a readiness to act. The clue -ive connects it to having a nature, function, or tendency.
Why it works · examples & details
The shared clue is the meaning or word job added by the ending: having a nature, function, or tendency. Compare active (having a readiness to act) with protective (serving or tending to protect). The complete word’s definition is more specific than the word-part clue.
act + ive → active Taking part or doing something. It works as a adjective in this example.
In a sentence: Young women were active participants in the garment strike.
Meaning & spelling: Moved from the workbook’s verb group because these uses form adjectives.
The map and matrix show established words. Matching letters alone do not prove a meaningful relationship.
Explore -ive · map, matrix & checks
activehaving a readiness to act
protectiveserving or tending to protect
Suffix connections map: -ive
Compare this ending across different bases. Explain what it adds to each word’s meaning or grammatical job. Select a word to load its path in the matrix below.
Read the family first.
-ivehaving a nature, function, or tendency
act + iveadjective
Taking part or doing something.
Young women were active participants in the garment strike.
protect + ive
Serving or tending to protect.
con + struct + iveadjective
Helping to build, improve, or solve something.
A constructive comparison of Ireland and North America explains both shared colonial methods and important differences.
Explain the connection: “These words share ___. In ___ it helps mean ___; in ___ it helps mean ___.”
Build with -ive 3 word paths
-ive: having a nature, function, or tendency. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
act + ive → active
Taking part or doing something.
adjective
Young women were active participants in the garment strike.
What changed?
Starting word
Selected word
Compare two paths
active: Taking part or doing something. constructive: Helping to build, improve, or solve something.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
act + ive
active
Taking part or doing something.
protect + ive
protective
Serving or tending to protect.
con + struct + ive
constructive
Helping to build, improve, or solve something.
Check your understanding
Use the map and matrix as needed. A wrong answer gives you a clue; try again or open the explanation.
0 of 3 answered correctly
DECODE · FOLLOW THE CLUES
Use the clue without overtrusting it
A word part gives you a strong clue—not always a complete definition.
Spot the part.Underline the exact letters you recognize.
Recall the clue.Say the meaning you learned for that part.
Test the whole word.Combine the clue with the other parts and the sentence.
Decode accessible
Spot accessible. The suffix -able / -ible carries the clue capable of, fit for, or worthy of. Here, it helps you understand: capable of being reached or used.
Decode careful
Spot careful. The suffix -ful carries the clue full of or having. Here, it helps you understand: having or showing care.
Decode endless
Spot endless. The suffix -less carries the clue without or lacking. Here, it helps you understand: having no end.
Compare the meanings, then test which form fits the sentence.
powerful
having substantial power
powerless
lacking power
Explain the difference
Power stays. -ful and -less change the meaning in opposite directions; both words can describe a person or group.
A common mistake—and how to avoid it
The common suffix is -ful, with one l, even though the word full has two. Also, -able and -ible cannot be swapped freely; learn each word’s established spelling.
REVIEW · BRING ROOTS BACK
Keep these roots working
Before opening each matrix, recall the root’s meaning. Build the review words, then explain the whole word. These core roots return in later lessons with new word forms.
Some review words use today’s affixes; others bring back an earlier pattern. Not every affix can attach to every root.
struct: build. Choose parts from left to right, or choose a word below. Dimmed choices do not continue a word in this matrix.
Prefix / leading part
Root or whole base
Suffix / ending
con + struct + ive → constructive
Helping to build, improve, or solve something.
adjective
A constructive comparison of Ireland and North America explains both shared colonial methods and important differences.
What changed?
Starting word
Selected word
Compare two paths
constructive: Helping to build, improve, or solve something. reconstruct: To build again or piece together an account of the past.
Say which parts stay and which change. Explain how the meaning or word job changes.
Read every word sum and meaning
Word sum
Word
Meaning
con + struct + ive
constructive
Helping to build, improve, or solve something.
con + struct
construct
To build or create something.
con + struct + ion
construction
The process of building or creating something.
re + con + struct
reconstruct
To build again or piece together an account of the past.
Use it: Write one sentence about history using a review word. Underline its root, circle its affixes, and explain why that word fits your sentence.
QUICK QUIZ · RECALL & APPLY
Recall the parts. Apply the pattern.
Check every target, then complete three applied questions. If you miss one, revisit its matrix and try again. Finish with the new-word challenge below.
CHECK IN CONTEXT
Make sense of a new word
Use both the word parts and the sentence. Open a hint if you need a starting point.
The sturdy container can be washed and used many times. It is reusable.
Expand your thinking · explain it or use itCheck your sentence
Does the word’s established meaning fit your idea?
Does its form fit the grammar of your sentence?
Can you identify a meaningful part and explain its contribution?
These optional notes are not saved, graded, or submitted.
COME BACK · RETRIEVE IT AGAIN
Remember after a break
Return in two days, then about a week later. Before opening the notes, recall a meaning, rebuild two words, and use one in a new sentence.
Start with -able / -ible. What does it mean? Which two words connect to it?
Check after you recall
-able / -ible: capable of, fit for, or worthy of. For example: washable and accessible. Explain how each connects to the meaning.
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