<?xml version="1.0" encoding="utf-8"?>
<!-- Time Hour:Minute:Seconds:Milliseconds 00:00:00:000-->
<navigation>
	<conceptcheck starttime="00:01:02:000" stoptime="00:01:07:000">
		<question>What is the difference of 30 minus 10?</question>
		<answer value='40'>40</answer>
		<answer value='20'>20</answer>
		<answer value='2'>2</answer>
		<correct>20</correct>
	</conceptcheck>
	<conceptcheck starttime="00:01:34:000" stoptime="00:01:37:000">
		<question>What is the difference of 60 minus 30?</question>
		<answer value='30'>30</answer>
		<answer value='3'>3</answer>
		<answer value='57'>57</answer>
		<correct>30</correct>
	</conceptcheck>
</navigation>
