Term 3 Topic 3 Elastic & Springs IntroductionWe can make things move in many ways including using stretched or twisted elastic and compressed springs.When we stretch or twist elastic or a compressed spring we store energy in it (INPUT).When we release the elastic or spring we create movement and energy (OUTPUT).Ice BreakerGreet the learners.Give each learner an elastic or rubber band and tell them to stretch it.Allow four learners at a time to shoot their bands up at the roof.Have a competition to see who can hit the roof first.The learners must collect their elastic bands afterwards.The learners are told that they will watch a video about elastic and spring forces.Teacher Input 1Show Video Clip 1 (2.24 minutes). The video explains potential energy in elastics.Show Video Clip 2 (6:53 minutes). Revise the meaning of the terms: INPUT and OUTPUT ENERGY by means of the Presentation 1.Ask the learners what happens when we eat an egg.Possible Answers:The egg has STORED ENERGY (INPUT). When we eat it we have that energy inside our bodies. We can then use that energy to run a race or play, etc. (OUTPUT)Ask learners what they did to make the elastic shoot up (stretched it).Tell them that when we stretch the elastic we store energy in it (STORED ENERGY/POTENTIAL).When we shoot the elastic band we release the MOVEMENT ENERGY.Show Presentation 2. On slide 3, show learners your example of a spring, and how it changes shape when you push it (apply force).Continue the presentation.Learner Activity 1Hand out Worksheet A.Tell learners that two videos about potential energy that is being stored in a spring will be shown after everyone had completed their answers in Worksheet A.Teacher Input 2Show Video Clip 3 (2:52 minutes).Show Video Clip 4 (0:41 minutes).Learner Activity 2Ask learners to describe the slinky that they saw in Slide 5 of Presentation 2. The descriptions should include full detail.Possible detail: colourful, light, moves easily, flexible, shape, material, etc.One learner is identified to write words on the board that describes the slinky.Teacher Input 3Show Video Clip 5 (1:57 minutes). This video slows what happens when a tennis ball is tied to the bottom of a slinky.Learner Activity 3Visit the link below and let learners design and make their own Jack-in-a-box or any other toy that uses an elastic or a spring.Find April Fool Jack in the Box. A list of what is needed to make one, picture and 6 steps to follow will guide the learners.LINK: http://bkids.typepad.com/bookhoucraftprojects/2012/03/project-106-april-fools-jack-in-the-box.htmlRevision Activity 1 Learners complete Quiz 1.Additional Resources: Video LinksPotential and kinetic energy - https://youtu.be/T5WJoup-RD8Static electricity experiment - http://www.sciencekids.co.nz/experiments/staticelectricity.html By Administrator|2015-07-16T15:19:25+02:00June 17th, 2015|0 Comments Share This Story, Choose Your Platform! facebooktwitterlinkedinredditwhatsapptumblrpinterestvkEmail About the Author: Administrator Leave A Comment Cancel replyYou must be logged in to post a comment.