TThe History of the Earth: Supplemental Guide 6A | The Three Types of Rocks 119- Evaluative How are the three types of rocks similar? How are
they different? (The three types of rocks are similar because
they are all found in the earth and are formed over time. The
three types of rocks are formed differently. Igneous rocks are
formed when heat forms magma and pressure moves the
magma towards the surface of the earth. Sedimentary rocks
are formed when layers of sediments are pressed together
over time. Metamorphic rocks are formed when other types of
rocks undergo intense heat and pressure.)
[Please continue to model the Question? Pair Share process for
students, as necessary, and scaffold students in their use of
the process.] - Evaluative What? Pair Share: Asking questions after a read-
aloud is one way to see how much everyone has learned.
Think of a question you can ask your neighbor about the read-
aloud that starts with the word what. For example, you could
ask, “What did you learn about in today’s read-aloud?” Turn
to your neighbor and ask your what question. Listen to your
neighbor’s response. Then your neighbor will ask a new what
question, and you will get a chance to respond. I will call on
several of you to share your questions with the class. - After hearing today’s read-aloud and questions and answers,
do you have any remaining questions? [If time permits, you
may wish to allow for individual, group, or class research of
the text and/or other resources to answer these questions.]
Word Work: Sediments 5 minutes
- The read-aloud said, “Sediments are always fl oating around in
lakes, oceans, and rivers.” - Say the word sediments with me.
- Sediments are tiny particles of dirt or rock that are moved
by wind or water. [You may want to put some sediment in a
plastic container of water for students to observe.] - When you go swimming in a lake, your feet kick up sediments
that are on the bottom of the lake.