Compare and ContrastLesson 12

You have learned that authors of nonfiction texts organize their ideas in certain ways called text structures.

One kind of text structure is compare and contrast.

In compare and contrast, the author shows how two or more ideas are alike and different.

When you recognize this structure in nonfiction texts, you can better understand what you read!

Remember: Compare= alike Contrast= different

Read the paragraph below. Look for the similarities and differences the paragraph describes.

Land snails and sea snails look similar. Both types of snails have spiral shells that protect their soft bodies. However, land snails have lungs instead of gills, which let them breathe air. Sea snails and land snails both need moisture to survive. Land snails produce mucus that keeps them from drying out, but sea snails get the moisture they need from the ocean.

What Clue Words helped you find similarities and differences?

Land snails and sea snails look similar. Both types of snails have spiral shells that protect their soft bodies. However, land snails have lungs instead of gills, which let them breathe air. Sea snails and land snails both need moisture to survive. Land snails produce mucus that keeps them from drying out, but sea snails get the moisture they need from the ocean.Compare Words

and

both

similar

Contrast Words

however

but

instead

Fill in the Venn Diagram! Land snails and sea snails look similar. Both types of snails have

spiral shells that protect their soft bodies. However, land snails have lungs instead of gills, which let them breathe air. Sea snails and land snails both need moisture to survive. Land snails produce mucus that keeps them from drying out, but sea snails get the moisture they need from the ocean.

• Have lungs• Produce mucus

• Have gills•Get moisture from

the ocean

• Spiral shells• soft bodies• Need moistur

e to survive

Land Snails Sea SnailsBoth

Use the Diagram to write a 4 Star Extended Response!

Read the question carefully. Make sure you understand what it is asking!

Restate the question in a sentence. Use 3 examples from the text to support

your answer. Add you own thoughts or feelings Restate the question in a sentence again.

How are land snails and sea snails alike and different?

How are land snails and sea snails alike and different?