Earth's+Structure+MA09

Opening
-Introduce the concept of the daily teaser on the board and then allow them to work on it for 5 min before collecting it. (I can take attendance during this time as well as get the students to begin thinking about the day’s topic, or recalling previous topics that will tie into today’s lesson) //pg. 5 –The Core of the Problem (unscramble words then match them with their definitions; covers the crust, mantle, inner and outer core)// Daily Teaser Sheet

-Activate their prior knowledge through a question session on geology, geologists, and what the earth is made of. //Sample questions: What does geology mean to you? What do you think a geologist does for a living? What do you know about what is under your feet when you stand outside? Do you think that you are standing on a solid or a liquid? Do you think that there are liquids that could support the earth’s surface? What do you think the earth’s surface is made of? Metal? Rock? Elements? Do you think the Earth is all one piece? Is it all the same throughout?//  -Link into the lesson by asking them what questions they have about the Earth, centering on its layers, study, and possibly events such as earthquakes and volcanoes which I can tie into later. Get them to supply other questions but fill in my own questions to get them curious. //Sample prompts: What do you want to know about the earth? Have you ever wondered how the continents came to be where they are? Do you know how the ocean floor was formed? Do you know why a Mt. or volcano is located where it is?//

Engagement
-Take out notebooks and copy down the questions the class brainstormed on a half sheet of paper leaving the other half to fill in the answers later. - Next page in the notebook; Geology Presentation “You have studied various science topics already, and each section of science has a scientist with a specific name for that topic. (//ex. Physics=physicist//) Does anyone know what type of science a person who studies the earth is doing? (Geology) And what do you think the scientist who studied geology would be called? (Geologist)” -Foldable Concept Presentation “Foldables allow you to get information organized, and can be used as a reference, or study sheet as well. Throughout this unit we will make several, each covering different concepts. You can use them to help with homework and class work but not the tests! To make the type of foldable for this unit you need a plain piece of paper folded the long way //(do this as a visual as you explain it to them)//. You then cut the top flap into three sections so that you can fold them up and down independently of one another. This way you can test yourself about the knowledge under each flap without seeing the information about each item on the foldable. On the outside flaps you write a concept or word while on the inside you write a definition, description, example or anything else that refers to the word on the outside that you need or want to remember about it. //(show a completed example on an unrelated topic) // Have each student make a foldable which they will use in their group activity. -Group Work on Earths Layers
 * //Geology=the study of the earth's composition and structure, and how it functions//
 * //Geologist= the scientists who study geology//
 * The students will get into their lab groups of 3 (already assigned by the cooperating teacher as these are their designated classroom seats; I will be able to make changes once I see how they work together but not until I run into a problem with the arrangement they will have been following for months; I can also make changes based on empty seats so that they students each have at least one other person to work with if not the optimal group of three) to a table. “Each student in your group needs to take a different topic; Crust, Mantle, or Core (//write the three topics on the board//). Each of you will then read up on and collect the pertinent data from the textbook on your topic. Remember the purpose of a foldable is to get the information about your word that defines it, explains it, gives examples, or whatever else helps you to remember it. After you have each gathered data you should share it with each of your group members. Make sure you write down what you need on the others words as well as your own in your foldables!”
 * As they work on this walk around the room answering questions and guiding the students to stay on task.

Closure
-As students finish up getting the data from each other within their own groups I set up the overhead with a sheet for each topic; Crust, Mantle, and Core. Once the students are done I will ask “do you think you got all the important information on each concept? Yes/No answers lead into lets find out if you did or what you missed.

-Have 6 different students, two from each topic, present their findings to the class. As they cover the various points of relevance I will write it up on the appropriate overhead so that everyone has a chance to copy any information they may have missed. If something is missing ask prompting questions to bring it forth. //(Sample questions: which layer has more than one section? What is liquid rock called? What is the order of the layers? What do you know about pressures effect on the core?)//

-Information they should have in their foldable! -Introduce the homework worksheet ( Geology+Earth's Layers Worksheet ) as a reinforcement of the textbook reading.
 * 1) //Crust: rocky outer layer, thin////n//est layer, made up of silicates, two types of crust=continental and oceanic, continental is less dense while oceanic is more dense
 * 2) //Mantle: middle layer, hot solid rock, pressure and temperature increase as it gets deeper, made of silicates iron and magnesium making it denser than the crust, 3 layers of the mantle=lithosphere (cooler and rigid at the top), asthenosphere (softer and weaker and can flow but not liquid in the middle), and mesosphere (stiffer rock at the bottom)//
 * 3) //Core: made of metal mostly iron, two layers= outer core (high temps keep the metal in liquid form) and inner core (higher pressure forces the metal into solid form), movement of the liquid iron in the outer core from earths rotation creates earths magnetic field//