Presentation on theme: "GREAT PENCIL INVENTION"— Presentation transcript:
1GREAT PENCIL INVENTION Inventing a New Kind of Pencil
2So you want to do some inventing? What's wrong with this pencil?Here are some typical replies:smalluglyno eraserneeds sharpeningmade out of woodcan't see inside and how it workscan't write on chalkboardnot made of steelgoes down too fastlead always breakscan't eat iteasy to losenot interestingnot decoratedtoo skinnytoo fat
3"How can we improve this pencil?" What new features can we add to make it more useful?Here are some more ideas:put an eraser onmake the eraser biggerchange the colormake it longerget a new onemake it fattermake it skinnier
4GREAT PENCIL INVENTION How about this pencil?Who or for what would this pencil be used?hammerdoctor's hammerscrew drivercork screwcan opener
5GREAT PENCIL INVENTION How about this pencil? Who or for what would this pencil be used?
6GREAT PENCIL INVENTION One of my first inventions!What ideas do you have for a new pencil?mirrorlipstickeyelinercompactmascaracombchocolatepretzelfruitcard caseTVcameratypewritercomputercalculatorCompass pencil: has compass built into the end.
7GREAT PENCIL INVENTION More designs….prismeyeglassestelephonepagerstaplerscissorfish tankwatchclockanimalinsectcandycandy dispenserflashlightglow in the darklighted tip to write in the darkemergency flasher: lets install one on our ugly pencil above:
8GREAT PENCIL INVENTION More designs….chalkdental mirrortooth brushflosstoothpickssharpenermechanical pencilbugger diggertissue holderairplaneflying pencilmore eraserThis “silly" pencil was invented by one student
9GREAT PENCIL INVENTION More designs….triangularsquareroundhexagonalbuilt in torchmatches on one endmatch holdercigarette lightermusical instrumenttuning forkspringgyroscopetopphysics demosforkspoonchopsticks
10GREAT PENCIL INVENTION Enough ideas for you?Well, now is the time for getting the class to do improvetheir critical thinking skills.For example, ask the class:Which pencils could be invented with simple tools and easily obtained items.Which items could be manufactured most easily?How much can such a pencil be sold?Does the class want to form a small business manufacturing and selling pencils, or any other items?What kinds of activities are involved?