Kentucky Reading and Writing L.8.4.b

ELA8th GradeLanguage

The Standard

L.8.4: Determine or clarify the meaning of unknown and multiple-meaning words and phrases based on grade 8 reading and content, choosing flexibly from an array of strategies.

Use Greek and Latin affixes and roots as clues to the meaning of a word.

Kentucky Academic Standards for Reading and Writing (2025) · Vocabulary Acquisition and Use

Teacher's field guide

What Students Need to Do: Students break unfamiliar words into parts and use those parts to make a likely meaning. They check that meaning against the sentence.
What Mastery Looks Like: A student explains that micro means small in microscope and port means carry in portable. They use the sentence to work out the whole word's meaning.
Common Misconceptions: Students may think port always means a harbor, so they miss its meaning in portable. Others think micro means a tool because they know the word microscope. Some stop at one word part without checking the sentence.
How to Assess It: Write these sentences on the board: “We used a microscope to view cells. I packed a portable lamp.” Ask students to explain what micro and port mean and how each part helps explain the whole word.

Lesson moves

Give pairs cards marked micro, scope, trans, port, and able; have them build words and sketch what each word means.
Ask, “Why is a flashlight portable but a streetlight isn't?” Have partners answer using port and able.
Read sentences with microscope, microscopic, portable, and transport; teams earn a point for explaining each word using its parts and context.
Show a portable charger box and a microscope catalog page; ask students to circle word parts and explain how each product name fits.

Free download

A ready-to-print activity worksheet aligned to L.8.4.b, with an answer key for the teacher on its own page. No account needed.

PDF, US Letter, prints cleanly in black and white.

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