Determine the meaning of academic, domain-specific and multiple-meaning words, and use words that signal logical relationships

Learning goal: This lesson teaches Ohio's 2026 standards RI.5.4, L.5.4 and L.5.6, first implemented in 2027-28. You will determine the meaning of both general academic and domain-specific words and phrases in an informational text; determine or clarify the meaning of unknown words and multiple-meaning words and phrases using context within and beyond a sentence, common Latin and Greek affixes and roots, and print and digital resources; and use grade-appropriate conversational, general academic and domain-specific words and phrases acquired through conversations, reading and read-alouds, including words that signal logical relationships such as however, similarly and moreover.

Three kinds of words. Conversational words are the everyday words of talk: stuff, dry up, a bunch, kind of. They are exactly right with friends and often too loose for a report. General academic words appear in many school subjects and in books, but rarely in casual talk: process, factor, observe, evidence, affect, compare, conclude, significant. If you learn factor in science, you will meet it again in social studies and math. Domain-specific words belong to one subject or field: in science, evaporation, water vapor, condensation, surface area. Domain-specific words often have exact definitions that experts agree on.

Phrases count too. Some meanings belong to a group of words. Water cycle and surface area are domain-specific phrases. As a result, in contrast and for example are general academic phrases that signal how ideas connect.

Signal words for logical relationships. Some general academic words tell a reader how the next idea relates to the last one. However and in contrast signal a difference or a surprise. Similarly and likewise signal that the next idea is like the last one. Moreover and in addition add another point in the same direction. Therefore and as a result signal a consequence. For example signals a specific case. Choosing the wrong signal word changes the logic of a paragraph, even if every fact is correct.

How to determine a word's meaning in an informational text. Authors of science and history texts often help you. Look for: a definition in the same sentence ("Evaporation is..."); an appositive, a noun or noun phrase placed right beside another noun to rename or explain it, which sometimes gives a definition ("water vapor, an invisible gas"); an example that shows the meaning; a diagram label; a glossary entry. Use word parts: evaporate contains vapor. And check whether the word has a different everyday meaning. In everyday talk, matter means "to be important"; in science, matter is anything that has mass and takes up space. The subject tells you which meaning the author intends.

Acquiring words through conversations, reading and read-alouds. You learn many words by hearing them. When a teacher reads aloud or a classmate uses a new word, notice it, ask what it means or listen for the explanation, and then use it yourself within a day or two. Keep a word journal with the sentence where you met the word, what kind of word it is, its meaning and your own sentence. A word you have used three times is far more likely to stay than one you have only copied.

Original article — Where Does a Puddle Go?

After a summer rain, the playground is covered in puddles. By afternoon, most of them are gone. The water did not sink away entirely; much of it went into the air. This process is called evaporation: liquid water changing into water vapor, an invisible gas that mixes with the air.

Evaporation does not need boiling. Water in a puddle, a pond or a wet shirt on a clothesline evaporates at ordinary outdoor temperatures. However, it happens faster when the water is warmer. Therefore, when other conditions are the same, a puddle in the sun disappears sooner than a puddle in the shade.

Temperature is not the only factor that affects evaporation. Wind is another. Moving air carries water vapor away from the surface of the water, making room for more to evaporate. Similarly, a fan helps wet hair dry faster. Moreover, surface area, the size of the water's surface that touches the air, matters. Water spread thin across a wide, shallow puddle evaporates faster than the same amount of water in a deep, narrow cup.

Water vapor does not stay in the air forever. When it cools, it can change back into tiny drops of liquid water. This change is called condensation. You can observe it on the outside of a cold glass of water on a hot day. The drops did not leak through the glass; they formed from water vapor in the air that touched the cold surface. As a result of evaporation and condensation, water keeps moving between the ground and the sky in the water cycle.

In an investigation invented for this lesson, a class put 100 milliliters of water into each of two identical dishes. One dish sat in the sun and one sat in the shade. After six hours, the sunny dish held 60 milliliters and the shady dish held 85 milliliters. In this trial, more water disappeared from the sunny dish. The evidence fits the conclusion that warmth speeds up evaporation, because the only planned difference between the dishes was sun or shade. One trial cannot rule out other differences, such as a breeze on one side, so measuring the water temperature, checking the other conditions and repeating the trial would make the conclusion stronger.

Reading the words in the article. Process (general academic) means a series of changes or steps; you will meet it in science, history ("the process of making a law") and writing ("the writing process"). Evaporation (domain-specific) is defined right in the sentence after the colon. Water vapor is defined by an appositive, "an invisible gas." Factor (general academic) means one of the things that causes or influences a result; the article shows it by listing temperature, wind and surface area. Surface area is defined by an appositive too. The signal words do logical work: however introduces a contrast to "does not need boiling"; therefore marks the result; similarly connects wind outdoors to a fan; moreover adds a third factor.

Context within and beyond a sentence. Sometimes the clue to a word is in the same sentence: water vapor, an invisible gas. Sometimes it is in a different sentence. In the article, condensation is named at the end of one sentence, but its meaning, water vapor cooling into drops, is in the sentence before it, and the example of the cold glass comes in the sentences after. When a sentence alone does not explain a word, read the sentences before and after it, and the heading or the whole paragraph.

Multiple-meaning words. Multiple-meaning words need the widest look: matter, table, current and factor all have different meanings in different subjects, and only the passage tells you which one the author means. Use three steps. (1) List the meanings you know, or the ones a dictionary gives. (2) Try each meaning in the sentence; the word's job in the sentence (noun, verb or adjective) often rules one out. (3) Keep the meaning that fits the sentences around the word, and name the words that were your clue.

Latin and Greek roots and affixes. Many science words are built from Latin and Greek parts. Photo (Greek, light) appears in photograph (light + write: a picture recorded with light) and in photosynthesis (light + synthesis, putting together: the process in which plants use light energy to make their own food). Thermo (heat) is in thermometer, which also contains meter (measure), so the parts suggest "heat measure." The precise meaning is a tool that measures temperature, how hot or cold something is; in science, heat and temperature are not the same thing, which is exactly why the parts give only a first idea. The Latin prefix e- or ex- means out, which helps explain evaporate: water going out of a liquid and into the air as vapor. Word parts give a first idea; the passage and a reference confirm the precise meaning.

Print and digital resources. A glossary at the back of a science book gives the meaning the author intends in that book. A dictionary, print or digital, shows how to pronounce a word (the syllables, which one is stressed, often a button to hear it in a digital dictionary), its part of speech and all its meanings, so you choose the one that fits the passage. A thesaurus lists synonyms, useful when you want a more precise word for your own writing, but check that the synonym fits the sentence before you use it.

A misconception to avoid. Some students think a long or rare word is automatically a domain-specific word. Significant is long, but it appears in every subject, so it is general academic. Another misconception is that conversational words are wrong. They are right in conversation; the skill is choosing the kind of word that fits the audience.

Worked example 1 — Sorting words. Sort dry up, evaporation, factor, condensation, stuff, observe. Conversational: dry up, stuff (everyday talk). General academic: factor, observe (used in many subjects). Domain-specific: evaporation, condensation (science terms with exact meanings). Test for general academic: can you imagine the word in a history or math lesson? "One factor in the town's growth was the canal" works, so factor is general academic.

Worked example 2 — Determining a meaning from the text. What does condensation mean? Step 1: Find the definition clue: "When it cools, it can change back into tiny drops of liquid water. This change is called condensation." Step 2: State it: condensation is water vapor cooling and changing into liquid water. Step 3: Check it with the example: drops on a cold glass come from water vapor in the air. The example fits the meaning.

Worked example 3 — Clarifying a word with roots and a reference. In a new passage you read: "Plants need sunlight for photosynthesis." Step 1, word parts: photo means light; synthesis means putting together. First idea: something put together using light. Step 2, context beyond the sentence: the next sentence says, "During this process, leaves make sugar from water and carbon dioxide." Step 3, reference: the glossary defines photosynthesis as the process by which plants use light energy to make food, and a digital dictionary shows the pronunciation, with the stress on syn: pho-to-SYN-the-sis. The parts, the context and the reference agree.

Worked example 4 — Revising with precise words and signal words. Conversational draft: "The sunny dish kind of lost more water. The shady one lost some too. The sun makes stuff dry up." Revised: "The sunny dish lost 40 milliliters of water. In contrast, the shady dish lost only 15 milliliters. As a result, the evidence suggests that warmth speeds up evaporation." Check the numbers: 100 − 60 = 40 and 100 − 85 = 15. In contrast signals a difference; as a result signals a conclusion. Kind of, stuff and dry up were replaced by precise academic and domain-specific words.

Worked example 5 — Clarifying a multiple-meaning word. The article says, "Moreover, surface area, the size of the water's surface that touches the air, matters." Step 1, list the meanings: in science, matter is a noun, anything that has mass and takes up space; in everyday use, to matter is a verb that means to be important or to make a difference. Step 2, try each one: matters is doing a verb's job in this sentence (surface area matters), so the science noun does not fit, and "surface area makes a difference" makes sense. Step 3, check beyond the sentence: the next sentence tells what difference it makes, that water spread thin across a wide, shallow puddle evaporates faster than the same amount of water in a deep, narrow cup. So matters here means makes a difference to how fast water evaporates. A dictionary lists both meanings with the part of speech for each; the passage tells you which one to choose.

Representation task — three-column word chart. Make a chart with the headings Conversational, General academic and Domain-specific. Place at least four words from the article or from today's discussion in each column. For each academic or domain word, write where you met it (article, conversation or read-aloud), its meaning, and the clue you used (definition, appositive, example, word part or glossary). Add a fourth section listing four signal words and the relationship each shows.

Independent performance. Your teacher reads aloud a short science or social studies passage. Listen for two new general academic words and two domain-specific words or phrases, and write them in your word journal. Then write a paragraph of six to eight sentences explaining something you learned from the passage to a younger student's parent.

Success criteria: You correctly label each word as general academic or domain-specific and explain your label. You state each word's meaning in your own words and name the clue you used. Your paragraph uses at least two general academic words, two domain-specific words and three different signal words (for example, however, similarly, moreover, as a result), each showing the correct relationship. You replace any conversational words that would be too loose for the audience. For one unknown or multiple-meaning word from the passage, you show how you clarified it with context from beyond its sentence, a Latin or Greek root or affix, and a glossary or dictionary, and you record its pronunciation.