ATI TEAS Key Ideas and Details Summary
Checked 11/3/26
Key Ideas and Details: key points
- The main idea is the single point the whole passage supports; details only back it up.
- An inference must be supported by the text, not just possible.
- Importance
- ★★★★★ (5 / 5)
- Weight
- About 17 of 45 Reading questions (38%)
Finding the topic, main idea, and supporting details of a passage; making inferences; following written directions and sequences; and reading information from labels, maps, and simple data sources.
📖 See more Key Ideas and Details concepts →Key Ideas and Details: 10 sample questions
Question 1. Read the passage. "Community gardens do more than grow vegetables. Neighbors who work side by side often get to know one another. Children learn where their food comes from. Empty lots that once collected trash become green, useful spaces." Which sentence best states the main idea of the passage?
- ① Community gardens help neighborhoods in several ways.
- ② Children should learn where their food comes from.
- ③ Empty lots in cities often collect trash.
- ④ Vegetables are easy to grow in the city.
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Answer: ① Community gardens help neighborhoods in several ways.
Key point: Main idea = the point every sentence supports
The main idea is the one point that every sentence supports. The first sentence says gardens "do more than grow vegetables," and the next three sentences list benefits: neighbors meet, children learn, and empty lots improve. All of these add up to "gardens help neighborhoods in several ways."
Wrong choices
- Children should learn where their food comes from.: This is one supporting detail, not the point that the whole passage makes.
- Empty lots in cities often collect trash.: This is part of one detail. The passage is about gardens, not about trash.
- Vegetables are easy to grow in the city.: The passage never says that growing vegetables is easy.
Question 2. Read the passage. "Marcus set his alarm for 4:30 a.m., packed two sandwiches, and filled a thermos with coffee. Before going to bed, he laid out his heavy work boots and his reflective safety vest by the door." What can most reasonably be inferred from the passage?
- ① Marcus is packing for a beach vacation.
- ② Marcus works in a quiet office.
- ③ Marcus is getting ready for an early start to a workday.
- ④ Marcus does not like coffee.
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Answer: ③ Marcus is getting ready for an early start to a workday.
Key point: Inference = conclusion supported by several text clues
An inference is a conclusion built from clues in the text. The early alarm, packed lunch, coffee, work boots, and safety vest all point to one thing: Marcus is preparing for an early workday. The other choices are not supported or go against the clues.
Wrong choices
- Marcus is packing for a beach vacation.: Work boots and a safety vest do not fit a beach trip.
- Marcus works in a quiet office.: Heavy work boots and a reflective vest suggest outdoor or site work, not an office.
- Marcus does not like coffee.: He fills a thermos with coffee, so this is not supported.
Question 3. Read the memo. "MEMO — To: All night-shift staff. From: Facilities. The east parking lot will be repaved on Tuesday, May 6. Please park in the west lot from 6 p.m. Monday until 6 a.m. Wednesday. Cars left in the east lot during this time will be towed." According to the memo, where should night-shift staff park on Tuesday night?
- ① In the east lot
- ② In the west lot
- ③ In the visitor garage
- ④ On the street near the building
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Answer: ② In the west lot
Key point: Find the stated detail; check the dates and times
The memo tells staff to "park in the west lot from 6 p.m. Monday until 6 a.m. Wednesday." Tuesday night falls inside that time, so staff should use the west lot.
Wrong choices
- In the east lot: The east lot is being repaved, and cars left there will be towed.
- In the visitor garage: The memo does not mention a visitor garage.
- On the street near the building: The memo does not mention street parking.
Question 4. Read the directions. "To reset the thermostat, first press and hold the MODE button for five seconds. When the screen flashes, use the arrow keys to choose a temperature. Then press SET to save. Finally, wait one minute before checking the room reading." What should the user do right after the screen flashes?
- ① Press SET to save.
- ② Press and hold MODE for five seconds.
- ③ Wait one minute and check the room reading.
- ④ Use the arrow keys to choose a temperature.
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Answer: ④ Use the arrow keys to choose a temperature.
Key point: Follow sequence words: first, then, finally
Follow the order words: first hold MODE, when the screen flashes use the arrow keys, then press SET, finally wait one minute. The step right after the flash is choosing a temperature with the arrow keys.
Wrong choices
- Press SET to save.: This step comes after the temperature is chosen.
- Press and hold MODE for five seconds.: This is the first step, which makes the screen flash.
- Wait one minute and check the room reading.: This is the last step.
Question 5. Read the label. "Take 1 tablet by mouth every 8 hours with food. Do not take more than 3 tablets in 24 hours. May cause drowsiness. Do not drive until you know how this medicine affects you." According to the label, what is the greatest number of tablets a person may take in 24 hours?
- ① 8
- ② 1
- ③ 3
- ④ 24
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Answer: ③ 3
Key point: Read labels carefully for limits and numbers
The label says "Do not take more than 3 tablets in 24 hours." This matches the dosing schedule too: one tablet every 8 hours is 3 tablets in 24 hours.
Wrong choices
- 8: 8 is the number of hours between doses, not the number of tablets.
- 1: 1 tablet is the amount for each dose, not the daily limit.
- 24: 24 is the number of hours in the time period, not a tablet count.
Question 6. Read the passage. "Honeybees share information through movement. When a worker bee finds food, she returns to the hive and performs a 'waggle dance.' The direction of the dance shows other bees which way to fly, and its length hints at how far away the food is." What is the topic of this passage?
- ① How honeybees make honey
- ② Why honeybees sting
- ③ How beehives are built
- ④ How honeybees share information about food
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Answer: ④ How honeybees share information about food
Key point: Topic = what the passage is about in a few words
The topic is what the passage is about, in a few words. Every sentence is about the waggle dance and how it tells other bees where food is, so the topic is how honeybees share information about food.
Wrong choices
- How honeybees make honey: The passage does not explain how honey is made.
- Why honeybees sting: Stinging is not mentioned.
- How beehives are built: The passage does not describe building a hive.
Question 7. Read the notice. "The city pool opens for the summer on June 1. Lap swimming is offered from 6 a.m. to 9 a.m. on weekdays. Open swim for all ages runs from noon to 6 p.m. every day. Children under 10 must be with an adult at all times." According to the notice, when can an adult swim laps on a Tuesday?
- ① From noon to 6 p.m.
- ② Only on weekends
- ③ Any time from 6 a.m. to 6 p.m.
- ④ From 6 a.m. to 9 a.m.
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Answer: ④ From 6 a.m. to 9 a.m.
Key point: Locate the exact detail that answers the question
The notice says lap swimming is "from 6 a.m. to 9 a.m. on weekdays." Tuesday is a weekday, so an adult can swim laps from 6 a.m. to 9 a.m.
Wrong choices
- From noon to 6 p.m.: This is open swim time, not lap swimming.
- Only on weekends: Lap swimming is on weekdays, and Tuesday is a weekday.
- Any time from 6 a.m. to 6 p.m.: The pool is not offering lap swimming for that whole span.
Question 8. Read the passage. "Sea otters often float on their backs while they eat. They use rocks as tools, holding a rock on the chest and striking shellfish against it to crack the shell open. When resting, otters sometimes wrap themselves in strands of kelp, a kind of large seaweed, so that they do not drift away." According to the passage, why do sea otters wrap themselves in kelp?
- ① To crack open shellfish
- ② To hide from other animals
- ③ To keep from drifting away while they rest
- ④ To stay warm in cold water
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Answer: ③ To keep from drifting away while they rest
Key point: "According to the passage" = the answer is stated
The last sentence gives the reason directly: otters wrap themselves in kelp "so that they do not drift away." When a question says "according to the passage," the answer is stated in the text.
Wrong choices
- To crack open shellfish: The passage says otters use rocks, not kelp, to crack shells.
- To hide from other animals: Hiding is not mentioned in the passage.
- To stay warm in cold water: The passage does not give warmth as the reason.
Question 9. Read the passage. "Walking is one of the easiest ways to stay active. It needs no special equipment beyond comfortable shoes. It can be done almost anywhere, from a city sidewalk to a shopping mall. It can also be fitted into short breaks during the day." Which detail best supports the idea that walking is easy to fit into a busy schedule?
- ① It can be fitted into short breaks during the day.
- ② It needs no special equipment beyond comfortable shoes.
- ③ It can be done in a shopping mall.
- ④ Walking is one of the easiest ways to stay active.
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Answer: ① It can be fitted into short breaks during the day.
Key point: Match the detail to the exact idea it must support
The question asks about a busy schedule, which is about time. Only the detail about "short breaks during the day" talks about fitting walking into limited time. The other details support different points (cost, place) or are the main idea itself.
Wrong choices
- It needs no special equipment beyond comfortable shoes.: This shows walking is cheap and simple, but it says nothing about time.
- It can be done in a shopping mall.: This is about where you can walk, not about finding time.
- Walking is one of the easiest ways to stay active.: This is the main idea of the passage, not a detail about a busy schedule.
Question 10. Read the schedule. "Bus Route 12 — Weekday departures from Main Street Station: 6:10 a.m., 6:40 a.m., 7:10 a.m., 7:40 a.m., then every hour on the hour until 6:00 p.m. Travel time to Valley Hospital: 25 minutes." A nurse must arrive at Valley Hospital by 7:15 a.m. on a weekday. What is the latest bus she can take from Main Street Station?
- ① 7:10 a.m.
- ② 6:40 a.m.
- ③ 6:10 a.m.
- ④ 7:40 a.m.
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Answer: ② 6:40 a.m.
Key point: Use every fact in a schedule, including travel time
Add the 25-minute travel time to each departure:
- 6:10 a.m. + 25 min = 6:35 a.m. (on time)
- 6:40 a.m. + 25 min = 7:05 a.m. (on time)
- 7:10 a.m. + 25 min = 7:35 a.m. (late)
The latest bus that arrives by 7:15 a.m. is the 6:40 a.m. bus. Check: 7:05 is before 7:15, and the next bus arrives at 7:35.
Wrong choices
- 7:10 a.m.: This bus arrives at 7:35 a.m. (7:10 + 25 minutes), which is too late.
- 6:10 a.m.: This bus gets her there on time (6:35 a.m.), but it is not the latest one that works.
- 7:40 a.m.: This bus leaves after the time she must already be at the hospital.
Test yourself.
Written by AI · Not yet reviewed by staff