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Add Audio and Visuals is a free printable Grade 4 English worksheet on choosing where a visual develops the main idea, aligned to Common Core standard SL.4.5. It prints 2 questions with an answer key on its own sheet of paper, in 25 versions, 22 of them with different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 3 of 25 · the same problems every time you open this link.

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One paper per pupil

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Set 1 has all 25 in a single PDF. 22 of these 25 sets ask different questions — this skill does not have 25 questions to give. The rest reorder them, so no two pupils have the same paper in front of them.

Add Audio and Visuals

SL.4.5

NameDate

Read the text, then answer the questions.

1.Read the text, then answer the questions.

What a Coral Reef Is

A coral reef looks like rock and is built by animals. A coral polyp is a soft creature the size of a pinhead. It draws calcium from the sea water and builds a hard cup around itself. Millions of polyps, cup upon cup, become a reef. Inside each polyp live tiny algae. The algae make food from sunlight and pass most of it to the polyp. In exchange they get shelter and the polyp's waste. Neither could build a reef alone. When the water gets too warm, the polyps expel the algae. Without them the coral turns white and starves. That is what bleaching means. A reef takes centuries to build and can bleach in a single hot summer.

  1. 1. Determine the main idea of this text and explain how key details support it.
  2. 2. What would a diagram of a polyp need to label?
2.Read the text, then answer the questions.

The Longitude Problem

A ship's latitude — how far north or south it is — can be found from the height of the sun at noon. Sailors could do that for centuries. Longitude, how far east or west, was the problem. It has no natural marker. The solution was known in principle: compare the time on board with the time at a fixed place. The Earth turns fifteen degrees an hour, so every hour of difference is fifteen degrees of longitude. That required a clock that stayed accurate on a rolling, salty, temperature-swinging ship. No such clock existed. John Harrison, a carpenter, spent forty-three years building four. The fourth, finished in 1759, was the size of a large pocket watch and lost five seconds in eighty-one days at sea.

  1. 1. Determine the main idea of this text and explain how key details support it.
  2. 2. What would an illustration of Harrison's fourth clock need to convey?

LessonPrint · SL.4.5 · Set 3 · free to copy for classroom use

Answer key — Add Audio and Visuals

Set 3. Prints on its own sheet.

  1. 1.1. A reef is built by a partnership of two organisms — supported by the exchange between polyp and algae and by what bleaching is. 2. The soft polyp, the hard calcium cup and the algae living inside it.
  2. 2.1. Finding longitude was a clockmaking problem, not an astronomy one — supported by the fifteen-degree rule and Harrison's watch. 2. That it was the size of a large pocket watch, not a cabinet.

More practice for SL.4.5

Add audio and visuals to a talk where they strengthen the idea.

Teaching this next? Audio and Visuals in a Presentation is the 40-minute plan for it, with the misconceptions to expect.

All Grade 4 worksheets

Last reviewed 2026-09-05. Aligned to SL.4.5 of the Common Core State Standards for English language arts.