English Language Arts
Grade 4
15 min
Use adjectives to compare
Use adjectives to compare
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Introduction & Learning Objectives
Learning Objectives
Identify the base, comparative, and superlative forms of an adjective.
Correctly add -er and -est to one-syllable adjectives to make comparisons.
By the end of of this lesson, students will be able to use 'more' and 'most' with adjectives of two or more syllables.
Identify and correctly use common irregular comparative and superlative adjectives like 'good' and 'bad'.
Differentiate between comparing two things (comparative) and three or more things (superlative).
Write complex sentences that use comparative and superlative adjectives to add descriptive detail.
Which is faster, a cheetah or a snail? 🐆 vs. 🐌 How do we use special words to show that difference clearly?
In this lesson, you will learn how to change ad...
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Key Concepts & Vocabulary
TermDefinitionExample
AdjectiveA word that describes a noun (a person, place, thing, or idea).The **happy** dog wagged its tail. ('happy' describes the dog)
Base AdjectiveThe simple, original form of an adjective before it is changed for comparison.fast, tall, beautiful, good
Comparative AdjectiveAn adjective used to compare **two** nouns. It often ends in -er or uses the word 'more'.The cat is **faster** than the turtle.
Superlative AdjectiveAn adjective used to compare **three or more** nouns. It often ends in -est or uses the word 'most'.The cheetah is the **fastest** animal of all.
SyllableA part of a word that has one vowel sound. We clap out syllables to count them.The word 'big' has one syllable. The word 'fan-tas-tic' has three syl...
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Key Rules & Conventions
The -er / -est Rule (For Short Adjectives)
For most one-syllable adjectives, add -er to compare two things and -est to compare three or more.
Use this for short words like 'tall', 'small', and 'fast'. Remember spelling changes: for words ending in 'y', change 'y' to 'i' (happy -> happier). For words with a short vowel before the last letter, double the last letter (big -> bigger).
The more / most Rule (For Long Adjectives)
For most adjectives with two or more syllables, use 'more' to compare two things and 'most' to compare three or more.
Use this for longer words like 'beautiful', 'important', and 'exciting'. Do not add -er or -est to these words.
The Irre...
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Challenging
Which option best combines the following two ideas into one complex sentence? 'The sun is bright. The moon is not as bright.'
A.The sun is bright, and the moon is not.
B.The sun is bright, but the moon is dimmer.
C.The sun is brighter than the moon.
D.The sun is the brightest and the moon is not.
Challenging
Read the facts: A car travels at 60 mph. A train travels at 80 mph. A plane travels at 500 mph. Which complex sentence best summarizes this information using a superlative adjective?
A.Although the car and train are fast, the plane is the fastest of the three.
B.The plane is faster than the train, and the train is faster than the car.
C.The plane is more fast than the train and the car.
D.The plane is the most fastest vehicle.
Challenging
Read the paragraph: (1) My new shoes are comfortable. (2) They are more comfortable than my old boots. (3) However, my slippers are the most comfortable of my two pairs of footwear. (4) I will wear my new shoes to the park. Which sentence contains an error in using comparative or superlative adjectives?
A.Sentence 1
B.Sentence 2
C.Sentence 3
D.Sentence 4
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