✏️ WritingGrade 5Lesson 20
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Create cause-and-effect or compare-and-contrast essays

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Learning Objectives

  • 1Distinguish cause-effect from compare-contrast
  • 2Sort sentences into the four categories
  • 3Use signal words to link ideas
  • 4Plan an essay with a clear structure
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Mini Lesson

Skilled fifth-grade writers can pick the RIGHT essay shape for the question they are answering. Two of the most useful shapes are the CAUSE-AND-EFFECT essay and the COMPARE-AND-CONTRAST essay. Each one has its own job, its own structure, and its own set of signal words.

Cause-and-Effect Essays

A cause-and-effect essay explains WHY something happened (the CAUSE) and what RESULTED from it (the EFFECT). The writer connects events in a clear chain so the reader sees the link between them.

  • CAUSE — the reason something happened. Example: It rained heavily for three hours.
  • EFFECT — the result that followed. Example: The street flooded and traffic stopped.
  • Signal words for cause-effect: BECAUSE, SINCE, AS A RESULT, THEREFORE, SO, DUE TO.
  • Structure: name the cause, explain it, then walk the reader through one or more effects.

Compare-and-Contrast Essays

A compare-and-contrast essay explains how two things are ALIKE (similarities) and how they are DIFFERENT (differences). The writer picks two subjects worth comparing and shows the reader what they share and where they part ways.

  • SIMILARITY — a way the two subjects are alike. Example: Both cats and dogs are mammals.
  • DIFFERENCE — a way the two subjects are not the same. Example: Cats meow but dogs bark.
  • Signal words for compare-contrast: LIKE, BOTH, SIMILARLY, HOWEVER, UNLIKE, WHILE, ON THE OTHER HAND.

Two Ways to Organize a Compare-Contrast Essay

  1. SUBJECT-BY-SUBJECT — write everything about subject A first, then everything about subject B. Easier for short essays.
  2. POINT-BY-POINT — pick the points you will compare (size, food, behavior) and discuss both subjects under each point. Stronger for longer essays because the reader sees the comparison directly.
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Watch out: do not mix up correlation with cause. Two things happening at the same time does not always mean one caused the other. A real cause-effect link must be clear and direct.

Two Essay TypesLeft panel shows cause leading to effect with an arrow. Right panel shows two overlapping circles for compare and contrast.Two Essay TypesCAUSE & EFFECTCAUSEIt rained heavilyleads toEFFECTThe street floodedWhy it happenedand what resultedCOMPARE & CONTRASTABDIFFonly ASAMEbothDIFFonly BHow they are alikeand how they differ
Two essay types — cause-effect chain and compare-contrast Venn.
Signal WordsTwo columns listing signal words for cause-effect on the left and compare-contrast on the right.Signal WordsCAUSE-EFFECTwhy something happenedbecausesinceas a resultthereforesoUse to link a causeto its effect.COMPARE-CONTRASThow things are alike or differlikebothsimilarlyhoweverunlikewhileUse to link similaror different ideas.
Signal words at a glance for each essay type.
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Tip: before you write, decide which essay shape your question needs. If the question asks WHY or WHAT HAPPENED NEXT, choose cause-effect. If it asks HOW THEY ARE ALIKE OR DIFFERENT, choose compare-contrast.

Vocabulary
cause
The reason something happens — what comes first in the chain.
effect
The result of a cause — what happens because of it.
compare
To look at how two or more things are ALIKE.
contrast
To look at how two or more things are DIFFERENT.
similarity
A way two subjects are the same.
difference
A way two subjects are not the same.
signal word
A word or phrase that tells the reader what kind of link is coming, like "because" or "however".
structure
The way an essay is organized — the shape that holds the ideas together.
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