MR. MILLER'S CLASS
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Wednesday, November 28th, 2018

11/27/2018

 
With the writing, as I had mentioned in yesterday's entry, it found it necessary to do a mini-lesson on run-on sentences.  The reason is due to the fact that as I conferenced with individual students, a LOT of writing consisted of one long continuous sentence.  In many instances, it took up an entire page.  So, that is what I focused on along with reviewing that a paragraph is a group of sentences (usually 4-7) that share a common topic.  
Picture
In science, students were introduced to the concept of series circuits.  A series circuit is simply a circuit has more than one output, such as an LED. However, there is only one path.  See the image at the left for a simple example of one.  

What I did was to demonstrate it by hooking up two LED's .  However, since each LED requires 3 volts (since I can't seem to locate my 1.5 volt LED's) I had to either hook up four AA batteries or one 6 volt lantern battery.  I opted for the large 6 volt battery to make things simpler both for me and for the class.  I once again found it necessary to demonstrate it by hooking it up and showing it via a document camera.  I did add one more resistor to the circuit in the form of a switch so I could better control things.  The switch also serves to help conserve battery power.  Fortunately, the battery is rechargeable so that helps a lot. 

Lastly, I added a third LED, and since each LED requires 3 volts, 6 volts was enough for the two.  With the third, it required 9 volts to work completely.  I tested it anyway.  What happened was that two of the bulbs still lit up, putting out a weaker light while the middle bulb remained unlit.  Because of the added resistance, the output on the two was weaker.

But, I added just a AA battery, which is 1.5 volts.  Adding it to the 6 volt battery in the series circuit made it 7.5 volts.  I turned the switch on and all three worked!  


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  • Home
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