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Understanding Prefixes: 'Ir-', 'Multi-/Poly-', and 'Omni-' in 8th Grade Vocabulary

This educational resource explores the prefixes and words related to 'ir-', 'multi-/poly-', and 'omni-' for 8th graders. Students will learn the meanings of terms like "irregular," "polyglot," and "omniscient," along with their relevant contexts. The lesson highlights how these prefixes influence the meaning of the words they modify, enhancing vocabulary and comprehension for students. Engaging examples are provided to illustrate the use of each term in daily language and various fields, including mathematics and science.

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Understanding Prefixes: 'Ir-', 'Multi-/Poly-', and 'Omni-' in 8th Grade Vocabulary

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Presentation Transcript

  1. WORDS AT WORK • 8TH GRADE UNIT 2

  2. ir- not • irrelevant- not connected with or relevant to something. • irritate- to provoke impatience, anger, or displeasure • irrational- not logical or reasonable. In Math, not expressible as a ratio of two integers, and having an infinite and nonrecurring expansion when expressed as a decimal. Examples of irrational numbers are the number π and the square root of 2.

  3. ir- not • irregular- not even or balanced in shape or arrangement • irreversible- not able to be undone or altered • irrigate- supply water (to land or crops) to help growth, typically by means of channels

  4. ir- not • irresponsible- (of a person, attitude, or action) not showing a proper sense of responsibility • irrefutable- impossible to deny or disprove

  5. multi/poly -many • multimedia- using more than medium of expression or communication • polyglot- knowing or using several languages • polysyllabic- having more than one syllable

  6. multi/poly- many • multiple- having or involving several parts, members, or elements • polynomial- consisting of several terms. In Math, an expression of more than two algebraic terms. • polygon- a plane figure with at least three straight sides and angles, typically five or more

  7. multi/poly- many • Multicultural- of, relating to, or constituting several cultural or ethnic groups within a society • polytheism-the belief or worship of more than one god • multicellular-(of an organism or part) having or consisting of many cells

  8. multi/poly-many • polymer- a substance that has a molecular structure consisting chiefly or entirely of a large number of similar units bonded together • polyester- a fabric made of polyester fiber or fabric

  9. multi/poly- many • multitude- a large gathering of people • multigenerational- of or relating to several generations • multitasking- The ability of a person to perform more than one task at the same time. • polygraph-a machine designed to detect and record changes in physiological characteristics, such as a person's pulse and breathing rates, used esp. as a lie detector.

  10. omni- all • omniscient- knowing everything • omnipotent- (of a deity) having unlimited power; able to do anything • omnivore-an animal or person that eats food of both plant and animal origin

  11. pan- all, entire • panorama- an unbroken view of a whole region surrounding an observer • pandemonium- wild and noisy disorder or confusion; uproar • pandemic- (of a disease) prevalent over a whole country or the world

  12. pan- all, entire • panacea- a solution or remedy for all difficulties or diseases • Pangaea- a supercontinent comprising all the continental crust on the Earth.

  13. pan- all, entire • pantomine- A dramatic entertainment, originating in Roman mime, in which performers express meaning through gestures accompanied by music.

  14. tact, tang, tag, tig, ting- touch • intangible- unable to be touched or grasped, not having physical presence • contiguous- sharing a common border, touching (ex 48 of the 50 United States) • Contact- the state or condition of physically touching

  15. tact, tang, tag, tig, ting- touch • tactile- of or connected with a sense of touch • contagious- likely to spread or affect others; of a disease- spread from one individual to another by direct or indirect contact

  16. tact, tang, tag, tig, ting- touch • intact- not damaged or impaired in any way; complete

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