heads and hands on science john munro: highroad academy catalyst 2011
TRANSCRIPT
Heads and HandsOn Science
John Munro: Highroad AcademyCatalyst 2011
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Learn ThisYou Have 20 Seconds!!!
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Can you remember the matching letter for each symbol?
Is This Easier??
A B C
D E F
G H I
Reasons to Avoid Experiments & Demos
• Preparation – setting up a lab takes too long
• Materials – the equipment is not available
• Failure – it might not go as planned
• Risk – some activities are too dangerous
• Cost – it is too expensive to supply the class with the materials
• Content – I have too much material to cover
• Knowledge – I do not have enough background in science
Why We Should Use Experiments & Activities
Because getting into it is the
whole point of Science!
The application of the scientific method is the means by which the content of science is discovered.
And …It’s a lot more exciting that way.
Characteristics of Scientific Thought• Shows an appreciation of existing information on
the subject• Requires a carefully thought-out plan of attack
(the experiment/s) and a logical assessment of information gathered (the data).
• Requires detailed and careful record-keeping.• Requires a willingness to start over and keep
going when you fail.• Requires an open mind and a willingness to
change one's mind in light of new evidence.• Involves the sharing of information gathered
through experimentation or study• Glorifies God in our attempt to understand and
subdue His creation
Scientific processes engage the learner and require active learning…..
Essential Features of Inquiry
Essential Features of Inquiry
A good demonstration/activity has a number of key characteristics…
-shows correct science
-it uses simple, familiar apparatus wherever possible
-it is quick to set up
-it must be safe…some of your students will go home and try it
-it must be relevant to the material under investigation and appropriate to the level of the students in the class
A good demonstration/activity should do at least one of the following
-stimulate interest and curiosity
-clarify a concept
-convince a student that theory agrees with reality
-reinforce an abstract concept
-Undo a misconception, often due to conventional wisdom
-utilize a discrepant event which contradicts a prediction
-make them THINK!
Science Process: Observation
• Seeing Clearly Yet?
-characteristics of a good observation
Science Process: Predicting/Hypothesizing
• Packing Peanut Push Prediction
-characteristics of a good prediction
-characteristics of a good hypothesis
Science Process: Controlling Variables
• Getting Magnetism Under Control
-characteristics of a fair test
-designing a good experiment
-the illusion of correlation
or:
Just because it looks right doesn’t mean it is.
Science Process: Designing Experiments/ Fair Testing
• Another Litmus Test
-characteristics of a fair test
-designing a good experiment
Science Process: Developing and Testing a Hypothesis
• Funny Fish
-testing your hypothesis
-characteristics of a fair test
-designing a good experiment
Science Process: A Closer Inspection of Common Items
• A Diaper Dissection
-Exploring what makes a diaper work
• A “Magical Object”
-Analyzing rattlebacks
(an ancient Celt stone replica)
Science Process:
Developing ModelsInterpreting Data
Exploring Sound
THE COAT HANGER CHURCH BELL
• Making a prediction ….
Singing Rod • Making inferences … controlling variables
Science Process: Application/ Technology
• Let’s use what we have learned about sound, to DO something
• This is called technology
Palm Pipes
• Exploring sound… Let’s play
ROW, ROW, ROW YOUR BOAT
Row, row, row your boat gen - tly down the stream; C C C D E E D E F G
Mer - ri - ly, mer - ri - ly, mer - ri - ly, mer - ri - ly, C C C G G G E E E C C C
Life is but a dream. G F E D C
LONDON BRIDGELon-don bridge is fall-ing down, fall-ing down, fall-ing down;G A G F E F G D E F E F G
Lon - don bridge is fall - ing down, my fair la - dy. G A G F E F B D G E C
WHERE IS PINKY (or Are You Sleeping?)
“Where is Pin - ky? Where is Pin - key?” C D E C C D E C
“Here I am! Here I am!” E F G E F G
“How are you to - day sir?” G A G F E C
“Ver - y well I thank you.” G A G F E C
Run a - way, run a - way. C G C C G C
Science Process: Sharing Your Knowledge
Cool Physics Tricks to Amaze Mom and Dad
A Disappearing Pyrex Rod
• Investigating the effects of refraction in a liquid.
UV BEADS
• Explore the nature of sunlight or the effects of UV radiation
• Test with different SPF sunscreens while exposed to sunlight or UV
Hanging a Hammer
A Knuckle for Newton
Screen Test
Exploring Forces
• The Amazing Comeback Can– Forming an inference
• Loop the Loop– Exploring inertia
• Newton’s Beads– Exploring inertia
Amazing Polymers
• Growing Crystals
• Magic Sand
• Sodium Polyacrylate (Diaper Polymer)
• Shrinking Polystyrene
• Instant snow polymer
ANY QUESTIONS?