Freshman Physics
Freshman Physics
Jennifer Adams(314) 854-6760Jennifer Adams(314) 854-6760
Me• 8th year at CHS
• Physics BS from UMR and finishing MSEd at Webster this year
• 2 children in the district
Why Physics First?• Concrete Experiences to
Abstract Thought
This Physics Class
• Teaching Science Using Physics as a Context
• Presentation Skills
• Students Direct the Learning
• Modeling Curriculum
Modeling Physics
• Created by David Hestenes in the ’80s
• Recognized by US Dept of Education as:
One of the top 7 best K-12 educational technology programs
One of two Exemplary K-12 science programs
• The Modeling Cycle:
Observe, question, predict, design and carry-out experiment, collect and analyze data, report data with multiple representations, and repeat.
First Unit
• Uniform Motion
• Bag of Cars Activity
• Blinky Car
• BB Lab
Multiple Representations:Graphs
Multiple Representations:Words (First)
The BB on the high incline was faster than the one on the low incline. Both BBs rolled at a constant speed.
The BB on the high incline was faster than the one on the low incline. Both BBs rolled at a constant speed.
Multiple Representations:Words (refined)
Both BBs rolled down a tube starting at position 0. On the low incline, it moved in the positive direction with a constant velocity of 6.3 cm/beat for 18 beats. The BB on the high incline rolled in the positive direction with a constant velocity of 11.4 cm/beat for 10 beats.
Both BBs rolled down a tube starting at position 0. On the low incline, it moved in the positive direction with a constant velocity of 6.3 cm/beat for 18 beats. The BB on the high incline rolled in the positive direction with a constant velocity of 11.4 cm/beat for 10 beats.
Multiple Representations:Diagrams
0+
Multiple Representations:Mathematical Models
€
rx : position
t : clock reading
Δr x : displacement or change in position
Δt : time interval, elapsed time, or change in timer v ≡
Δr x
Δt definition of average velocity
v =d
Δt where v : average speed and d : distance traveled
r x f =
r v Δt +
r x i general mathematical model
Future Units
• Uniform Acceleration
• Forces
• Electric Circuits
• Electrostatics
• Energy
• Mechanical Waves
To Ensure Success• Engage and invest
• Turn in assignments on time (20% penalty)
• Make corrections in and out of class
• Get help immediately
• Find a common time to work with
teacher(s), lab partner(s), friends:
after lab, during lunch, before or after school
Please email me at: [email protected]
class website: claytonphysics.net.