00:01
When you're designing a multiple choice question, you do want to follow some simple rules, like writing the question clearly, not making it too convoluted.
00:15
But you really, i always try to write them so that you test understanding rather than wrote memorization.
00:23
And you also want to make sure that the wrong answers that you include aren't so silly and ridiculous that they kind of give themselves away.
00:34
Here i'm going to write a question that will look to see people's understanding between, with the difference between a mixture and a compound.
00:48
And i don't know, i'll follow all the rules, but we'll give it a try.
00:53
So the basic thought is to see if people understand that a mixture is a substance in which a chemical reaction has not taken place, that things are just mixed together in separate quantities, but nothing new has been made.
01:17
Okay, so here we go.
01:18
For each of the following, identify whether the...
01:28
The substance is a compound c or a mixture.
01:38
And i would probably follow this up with provide your rationale for each, or i would say pick one and one of your answers and supply rationale.
01:51
But we could and create a list and you want to something fairly, things that people are fairly familiar with.
01:59
So chocolate milk, yeah, i just gave myself away...