Recent content by UppercaseQ

Of course. I understand. And two more neutrons are not going to increase the diameter that much - not going to make two repelling protons that much further apart. While I am at it though, I think I heard that protons do not have strong force for each other. Personally I think they would. I...

Thank you. I will try to look into these components.

Thank you. I like the idea of teaching it as history - I guess helping students know where things come from.

I do not understand "U-236 is less stable than U-238 because it has a lower mass. " I thought lower mass usually contributes to greater stability. I think density would have a lot of influence on stability.

Thank you. That would be good. My students learn most by hands-on activities, so I'll probably start with labs. Then we will see if we can transfer to simulators.

I am pretty sure my students got bored with these games and actually have rejected them a long time ago. So I suspect they would not feel ownership of their learning if we started at the level of the bistable teeter-totters and a Mousetrap Game-like mechanism. I suppose I could give a project...

Subbing is a good way to see the many various teaching methods, classroom set-ups, etc. But it can be pretty stressful because you never know what you are going to run into - well unless you sub for the same few teachers every day. I recommend it for all future teachers. Last I checked, in...

"logic gates (AND, OR, NOR, etc.). Of course, that assumes that the students know how transistors work at a simple level. ..." I have students who remember how transistors work at the "simple level," but many do not. So when I draw the circuit, I include the the Si and P or N and electrons in...

Yes! Exactly. As a teacher on the rez, my students and I need to see things as close to the concrete level as possible - to limit as much mystery as possible. It is similar to the acceleration labs, where we like the old style clapper that makes the dots every 0.017 seconds or so. We like...

Could some one recommend a good kit to build a simple half adder and full adder with breadboard, wires, transistors and diodes? We understand how diodes and transistors work. We may not get beyond the full adder. We really do not want to use a chip at this point because we can not see inside...

For all I know, the logic gates might all be designed around trigonometry so the jump in logic is in calculating things like 1+1. Q:?)