Presentation on theme: "GREAT PENCIL INVENTION INVENTING A NEW KIND OF PENCIL."— Presentation transcript:
GREAT PENCIL INVENTION INVENTING A NEW KIND OF PENCIL
SO YOU WANT TO DO SOME INVENTING? What's wrong with this pencil? Here are some typical replies: small ugly no eraser needs sharpening made out of wood can't see inside and how it works can't write on chalkboard not made of steel goes down too fast lead always breaks can't eat it easy to lose not interesting not decorated too skinny too fat
" 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 on make the eraser bigger change the color make it longer get a new one make it fatter make it skinnier
GREAT PENCIL INVENTION How about this pencil? Who or for what would this pencil be used? hammer doctor's hammer screw driver cork screw can opener
GREAT PENCIL INVENTION How about this pencil? Who or for what would this pencil be used?
GREAT PENCIL INVENTION One of my first inventions! What ideas do you have for a new pencil? mirror lipstick eyeliner compact mascara comb chocolate pretzel fruit card case TV camera typewriter computer calculator Compass pencil: has compass built into the end.
GREAT PENCIL INVENTION More designs…. prism eyeglasses telephone pager stapler scissor fish tank watch clock animal insect candy candy dispenser flashlight glow in the dark lighted tip to write in the dark emergency flasher: lets install one on our ugly pencil above:
GREAT PENCIL INVENTION More designs…. chalk dental mirror tooth brush floss toothpicks sharpener mechanical pencil bugger digger tissue holder airplane flying pencil more eraser This “silly" pencil was invented by one student
GREAT PENCIL INVENTION More designs…. triangular square round hexagonal built in torch matches on one end match holder cigarette lighter musical instrument tuning fork spring gyroscope top physics demos fork spoon chopsticks
GREAT PENCIL INVENTION Enough ideas for you? Well, now is the time for getting the class to do improve their 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?