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Material Type: Paper; Class: Academic Writing Seminar; Subject: Academic Writing Seminar; University: Regent University; Term: Unknown 1989;
Typology: Papers
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K.1 b, g, j; K.2 a; K.4 e; l.1 a, f. g; 1.2 a, c; 2.1 a, b, d; 3.1 a, c; 4.1 a, b; 4.2 a, b, c, d; 5.1 f, g, h 6.1 e, f, g; 6.2 a, e; LS.1 b, e, f, g; PS.1 g, k; PS.6 a, b; PS.10 b
Information for teacher:
From the earliest grades, students must experience science in a form that engages them and increases their curiosity so that they are intrigued to raise questions and to generate ideas and explanations for their observations. These inquiry experiences will provide opportunities to develop and enrich students’ understanding of the nature of science. At this early level, students will develop concepts and vocabulary from such experiences while also developing inquiry skills. As students focus on the process of scientific investigation, they increase their abilities to ask questions, explore the world around them, make predictions, test their predictions, make observations, and construct reasonable explanations for their questions.
Students soon discover that their predictions are not always correct and that sometimes the unexpected happens. At times, they think one thing will happen, but the opposite actually occurs. In science, these are called discrepant events. Discrepant events get students thinking as they wrestle with their understanding and start thinking WHY? Such events and responses are a great way to increase students’ curiosity about the world around them and to get them hooked on science. It is also a wonderful way to clear up misconceptions or to introduce a new concept.
Amazing Egg is based on Newton’s Laws of Motion. The first law states, “ Every object in a state of rest or uniform motion in a straight line tends to remain in that state of motion unless an external force is applied to it.” This is also known as the law of inertia. Objects keep doing whatever they’re doing (rest or motion) until something else exerts a force on it. Anytime there’s a change in an object’s motion, a push or hit from something else caused that change. For this demonstration, remember that an object at rest will remain at rest unless acted upon by some force. In the setup, the pie plate remains at rest until a force (your push) acts upon it. The egg remains at rest until a force (gravity) acts upon it. Gravity pulls the egg down in a straight line; hence, the egg falls into the container. The plate and tube eventually stop moving due to a force (gravity and friction).
To prepare, setup the demonstration as pictured below. Fill the cup about three-quarters full with water and center the pie plate on top of the glass. Place the cardboard tube on the plate,
Repeat demonstration if desired.
Have students share their observations beginning each sentence with “I saw…,” “I heard…,” etc. SINGLE ROUND ROBIN
Have students draw a picture of what they observed and to think or write a question about their observations. Ask them: What do you still wonder about what happened? Ask students to share their picture and questions with shoulder partner RALLY ROBIN
While students are drawing/writing, quietly assess student responses and select 5-6 students (SAGES) who seem to grasp the scientific principle.
CIRCLE THE SAGE: Have the SAGES spread out around the room. Tell remaining students to gather around the SAGE with no two members of the same team going to the same sage. Have the sages explain why the egg fell into the cup instead of flying across the room. What makes the plate stop moving? Students return to their seats and discuss what the sages said. If there is disagreement, the team stands. Discuss with whole class to clarify any misconceptions.
Design an experiment to test how the one change in the set-up might affect how the egg falls. Ask students what might be changed in the setup (manipulated variable). If you’re brave, try 2 toilet paper tubes with 2 eggs making sure that the cups are directly beneath the tube/egg. Ask students what would happen if you used more than one egg. Have them formulate a hypothesis based on cause and effect. The effect would be the responding variable.
Show another discrepant event and have students respond. Fill a plastic zip lock bag with water and stick a sharpened pencil through it. Ask: What happened? Why? Have students draw and write to tell what happens. Have them ask a question based on what they observe.
Newton’s First Law: Place a ball on the floor. Tell students to observe it for several minutes. Does it move? (It should not move. If it rolls, ask them to explain what force is acting on it – air flow, gravity if floor isn’t level, etc.) Push the ball. Ask students to explain why it moved.
Students often want to demonstrate what they learn to their parents. This should be encouraged. Allow students to center an index card over the top of a glass and place a coin directly over the glass in the middle of the index card. Using just one finger, flick the card from the side. If the card is flicked correctly, the card will fly to the side and the coin will fall into the glass.