English Language Arts
Grade 2
15 min
Words with sub-
Words with sub-
What you'll learn
- Identify at least ten different words containing the prefix 'sub-' and accurately define their meanings based on the prefix and root word.
- Explain how the prefix 'sub-' changes the meaning of a root word, providing at least three examples demonstrating this transformation.
- Apply knowledge of the prefix 'sub-' to determine the meaning of unfamiliar words containing the prefix in context, achieving at least 80% accuracy on a short quiz.
- Analyze the use of words with the prefix 'sub-' in provided sentences and determine the author's intended meaning, justifying their interpretation with evidence from the text.
Tutorial Preview
1
Introduction & Learning Objectives
Learning Objectives
Identify the prefix 'sub-' in words.
Define 'sub-' as meaning 'under' or 'below'.
Recognize 'sub-' words used as adjectives.
Use the adjective 'subzero' in a sentence.
Use the adjective 'submerged' in a sentence.
Explain how an adjective describes a noun.
Have you ever seen a submarine 🚤 go under the water? The word 'sub' gives us a clue!
Today, we will learn about the prefix 'sub-'. We will see how it helps us make describing words. These words are called adjectives and adverbs.
Real-World Applications
Describing a very cold, subzero day 🥶
Talking about a submerged toy in the bathtub 🛁
Reading a story about a subway train 🚇
Understanding a subpar grad...
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Key Concepts & Vocabulary
TermDefinitionExample
PrefixA prefix is a small word part added to the beginning of a word. It changes the word's meaning.The prefix 'un-' in 'unhappy' means 'not'.
sub-The prefix 'sub-' means 'under' or 'below'. It's like going down a ladder! 👇A submarine goes under the sea.
AdjectiveAn adjective is a word that describes a person, place, or thing (a noun).The 'red' ball. 'Red' describes the ball. 🍎
AdverbAn adverb is a word that describes an action (a verb). It tells 'how' something is done.The turtle walked 'slowly'. 'Slowly' describes how it walked. 🐢
SubzeroThis adjective means the temperature is below zero. It is super cold! ❄️We wore big coats on the subzero day...
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Key Rules & Conventions
The 'Sub-' is Under Rule
sub- = under or below
When you see 'sub-' at the start of a word, think of something going down or being under.
The Adjective Job Rule
Adjective + Noun
A 'sub-' word used as an adjective will come before the noun it describes. It tells you more about that noun.
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Challenging
How does the prefix 'sub-' create an opposite meaning in the pair of adjectives 'standard' and 'substandard'?
A.'Sub-' makes it mean 'extra good'.
B.'Sub-' makes it mean 'below the standard'.
C.'Sub-' makes it mean 'the same as the standard'.
D.'Sub-' makes it mean 'a different kind of standard'.
Challenging
If 'human' describes a normal person, and 'superhuman' describes someone with powers above humans, what does the adjective 'subhuman' likely describe?
A.person who is a superhero.
B.person who is a regular human.
C.Behavior that is below what is expected of a human.
D.person who lives underground.
Challenging
A 'goal' is what you want to achieve. A 'sub-goal' is a smaller step to get there. Which sentence best describes the relationship?
A.To achieve the main goal, you must first complete the sub-goals.
B.The sub-goal is much more important than the main goal.
C.You can ignore the sub-goals and still reach the main goal.
D.sub-goal and a main goal are the exact same thing.
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Frequently asked questions
What grade level is "Words with sub-"?
Words with sub- is a Grade 2 English Language Arts lesson on ExcelOS.
What will I learn in Words with sub-?
You'll be able to: Identify at least ten different words containing the prefix 'sub-' and accurately define their meanings based on the prefix and root word; Explain how the prefix 'sub-' changes the meaning of a root word, providing at least….
Is "Words with sub-" free to practice?
Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.
How many practice questions are included with Words with sub-?
This lesson includes 27 practice questions across multiple difficulty levels, each with instant feedback and explanations.