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Technologies and Forces: Ideas for teaching Y2 Technology

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This slide share offers teaching ideas for teaching forces for Year 2 teachers. It is linked directly to the Australian Curriculum. Additional resources can be found at:
http://technologiesjvillis.weebly.com/
By Jo

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Technologies and Forces: Ideas for teaching Y2 Technology

1. 1. http://pixabay.com/en/question-mark-question-response-96288/ Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis
2. 2. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis AUSTRALIAN CURRICIULUM (K-2) Explore how technologies use forces to create movement in products (ACTDEK002) These lesson ideas link to the Primary Connections Science Unit for Year 2, Push -pull. The Australian Curriculum content descriptor for this unit is: A push or a pull affects how an object moves or changes shape (ACSSU033).
3. 3. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 1: Exploration Invite students to bring toys to school which require a push or pull in order to move. Allow students time to explore/experiment with the toys. Students might be asked to record observations using a table. They may also be asked to sort the toys into groups (toys which require a push and toys which require a pull) and rank the toys according to how much force needs to be applied in order for the toys to move.
4. 4. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Which parts allow movement? Ask students to draw and label diagrams of toys. Ask them to focus on what parts of the toys allow movement? What shapes allow for movement? What would happen the shape of the moveable parts were different? Does the surface type affect movement? Ask students if the surface on which a toy is on affects movement? Invite students to investigate? How might they approach the question? What could they do to test their idea? Students may need support with designing a test. Alternatively, teachers may choose to approach this task as a whole class investigation.
5. 5. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 2: Wheels Cut some different shaped card (e circles, triangles, squares) and use a straight rod (ie pin, match, needle, toothpick, doweling) to connect to the cut out shapes. The shapes on either end of the rod need to be the same shapes. Then roll them across a smooth surface. Ask students to record how they roll. You might ask students to rate each (ie P=poor, A= average, G=good, E=excellent).
6. 6. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 3: Levers A lever is a rigid bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other. Ask students: "What do a fork and a pair of scissors have in common? …Well, apart from being common devices found in most modern households, they're levers, and levers are some of the most important machines" (source). Invite students to create their own levers by following instructions using this link. Of cource, we use coins in Australia instead of pennies. Invite students to explore and explain some simple levers (ie a stapler, a peg, see-saw, scissors, tweezers, hammer, wheel burrow and pliers).
7. 7. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 3: Levers Link levers to art. Source: http://themetapicture.com/fun-with- clothespins/
8. 8. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 4: Slinky The slinky has been a popular toy for over half a century. In this investigation students explore how the angle of an inclined plane affects how a slinky can walk down a plane. “The inventor of the Slinky was a retired Navy engineer named Richard James, who worked in the Philadelphia Naval Shipyard. He initially thought the bouncy springs would be useful on ships for supporting sensitive instruments and keeping them stable during storms at sea. But after the Navy showed no interest in his springs, his wife, Betty, had a better idea—she thought up a catchy name and Slinky the toy was born in 1945” (source).
9. 9. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 4: Slinky Show students how to make a ramp using a plank of wood and a stack of books. Invite students to investigate how the slope/steepness of the ramp affects the slinky. How might they test it? What might they use to record the Slinky's movement? (ie stop watch or ruler). Ask students to write a procedure on how they will conduct their investigation. If this is a new process for students, teachers may choose to conduct this part as a whole class. Allow students to conduct the investigation. Source: http://www.scientificamerican.com/article/bring- science-home-slinky/
10. 10. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 5: Rocket propelled toy car This investigation is more structured than the other investigations. These are the materials you will need:
11. 11. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 5: Rocket propelled toy car https://www.youtube.com/watch?v=sT-n3QfCl_c
12. 12. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 5: Rocket propelled toy car Ask students to explain the force being used to make the car move. Can they draw a diagram to help explain their thoughts? What might happen if they use two straws instead of one? Two balloons? Use a bigger car?
13. 13. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 6: The Mammandur The Mammandur is a spinning top that was played with by Aboriginal children of Awngthim, Weipa in Queensland. Traditionally the mammandur was made from beeswax and a stick. It was spun by rubbing the stick between two palms or by using the thumb and middle finger to twist it. Invite students to make their own using wooden sticks and plasticine. Then ask students to investigate different methods of spinning their mammandur. Source: Year 2 Blog
14. 14. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 7: Catapults Allow students to play Angry Birds online: http://chrome.angrybirds.com/%20/
15. 15. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 7: Catapults Ask students to consider how a catapult works. What force is used? Invite students to write an explanation. Then ask them to draw and label a diagram showing how they think a catapult works. Show students a range of materials and ask them how they might use the materials to build a catapult. Invite students to draw their design idea, build it and test it. Teachers may find that several or many of student’s designs don’t work. If this happens try some of the methods on the following slide.
16. 16. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 7: Catapults Build a Lego catapult. Instructions can be found at: http://frugalfun4boys.com/2014/01/27/t wo-ways-build-lego-catapult/ Build a marshmallow catapult. Instructions can be found at: http://random- scraps.blogspot.com.au/2010/06/marsh mallow-catapult.html
17. 17. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 8: Design your own simple machine https://www.youtube.com/watch?v=HEsH1iA20GM
18. 18. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Teaching iDea 8: Design your own simple machine After viewing Bill Nye’s video from the previous slide let students know that they have been asked to design their own simple machine using their knowledge from this unit of work. As a class, brainstorm what we have learned from our investigations. Invite students to think and discuss a simple machine that they would like to make. What might the purpose of their simple machine be? What forces would it use in order to complete its purpose? Ask students to draw a design, list the materials needed, write a procedure, build their simple machine and then evaluate.
19. 19. Forces and the Properties of Materials Y2 Teaching ideas by Joanne Villis Copyright I give permission for the following: Adaptations and sharing of this resources is for educational purpose only. I do not give permission for commercial use of this work. When sharing or adapting this work I ask that you give credit to the original creator, Joanne Villis at http://intertecheducation.edublogs.org/ .These ideas may be used for non-commercial purposes only. Contact details: http://intertecheducation.edublogs.org/ jvillis@inter-tech.com.au http://www.pinterest.com/joannevillis/