Into to Electricity
edited
... Watt, Kilowatt, Ohm, Resistance, circuit, electron, Protons, Electron flow, Open circuit, Clos…
...
Watt, Kilowatt, Ohm, Resistance, circuit, electron, Protons, Electron flow, Open circuit, Closed circuit, Magnetic field, Compact florescent, Incandescent
Teaching Strategies and Distributed Guided Practice/Summarizing Prompts:** · Current·Current Vs. Voltage
Voltage is like the pressure in a water hose
Current (amps) is the amount of water in the hose (Number of electrons)
A static charge from rubbing your feet on the carpet is about 5,000 volts
...
right conditions.
· Have
·Have you ever
1 Joule / Second (Measures the rate at which energy is used)
Why does this happen? (Trying to draw to much power through the circuit)
...
A hair dryer is over 1,000 watts
Why are circuit breakers a good thing? (They help prevent fires from heat build up) · CFL·CFL Vs. Incandescent
100 Watt incandescent = 30 Watt CFL
We could save 600 million a year if we only used CFL
...
How much could you save per light bulb over a year?
Run the bulb 6 hours a day
...
= 180 Watts/Day IncandescentWatts/DayIncandescent = 600
180 Watts X 365 Days = 65,700 & 219,000 Watts
$5.85 a year or $19.71
...
I have 30 bulbs so I save $415.80 a year
CFL use less energy because they are more efficient and generate less heat · Resistance·Resistance
Opposition to the flow of current through an object
Copper has low resistance so we use it for wire because the electrons can break free easily.
History of Measurement
edited
... Goal for day #1 is to complete the "Fathom" slide.
Summarizing Strategies:
How bi…
...
Goal for day #1 is to complete the "Fathom" slide.
Summarizing Strategies:
How big is nano:
http://learn.genetics.utah.edu/content/begin/cells/scale/
Ask simple recall questions:
What are common measuring tools (body parts), Why did people use body parts (convenience). What are the problems with this method of measuring (No standard). Ask a student to redefine standard.
What is Technology
edited
... Hand out and review the 3 problems on "What is Technology" worksheet. {What is Tech …
...
Hand out and review the 3 problems on "What is Technology" worksheet. {What is Tech Wksht.pub}
Divide class into 3 groups and assign each group with 1 of the problems.
...
assigned problem.
Have each group share their ideas. Monkey's cracking open food
Students (not assigned the problem) should record solutions given by other groups. What does a "device" that is not part of your body do for you when solving a problem
Mechanical advantage
Have students develope their own definition based on information discussed.
Day One 7-8
edited
... Seating Assignments
* alphabetical by name during seat time (25%) * May move around and sit o…
...
Seating Assignments
* alphabetical by name during seat time (25%) * May move around and sit other places during work time (75%)
Student lockersbins assigned -
2 to a locker . Alphabetical
keep binder/pen-pencil in there
...
Classwork - 50%
Homework 10% Notebook - 5% - pages are # 'ed - Check at 5 & 15 weeks (mid-quarter)
WebWeb site demo
...
- Tech Ed.MoodleEd.
Moodle - link
Calendar - class activity
Name Game.
Properties of wood
edited
... Inner bark – Carries the food produced from the leaves.
The cambium layer- This is the part o…
...
Inner bark – Carries the food produced from the leaves.
The cambium layer- This is the part of the tree that is growing, It is a very small layer, on some trees you can see this layer if you cut into them.
...
to the heartwood. Asheartwood.As the cells
Heartwood- The support for the tree, It is what holds the tree up. The wood is dead but it does not decay inside the tree. It is as strong as steel. The cells of the trees are held together with lignin, which is a chemical glue. Heartwood is what most people buy to make furniture, it has the best looks.
The life of a tree
...
Hardwoods Vs. Softwoods
**
Orthographic
orthomeans true. Orthodontist puts your teeth in the correct or true shape. To true something is to return it to its correct angle and size.
Each line and angle is true size and shape
Lines can be measured and dimensions transferred stock.
Can be scaled down. 1/4" = foot.
lines are in proportion
Front view shows the most information
