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Current time:0:00Total duration:2:30

Video transcript

I'm here the Khan Academy exercise called find one on the number line and they're asking us to do exactly that it says move the dot to one on the number line and it's a little interactive dot that I could move around and so let's think about how I would do it and I always encourage you pause this video and see at least how you would think about doing it or or put your finger on the screen where you think one is and then we'll work through it together alright so they've told us where a zero is and they've told us where seven fourths is so one thing I could do is I could say well how many of these equal spaces does it take me to get from zero to seven fourths so let's see it's one two three four five six seven so if it takes seven equal spaces to get to 7/4 that means that each of these spaces is one-fourth because then it would be 1/4 2/4 3/4 4/4 5/4 6/4 and 7/4 alright we're making some good progress so where would one be well one would be 4/4 so we would go 1/4 2/4 3/4 and then 4/4 so that's where one is so the important thing to realize is the only way we knew that each of these each of these gaps or each of these spaces from one hash to the next the way that we knew that each of those is 1/4 is by saying hey look seven of those equal spaces get us to 7/4 so each of these must be 1/4 so four of those 4/4 would be equal to 1 let's do another example so here we're said we're told to move the dot to one on the number line so put your finger on on where that would be on the screen pause the video and do that alright in some ways this is a little bit easier because they told us that going from zero to the next the next little cross or hash I guess you could say whatever you want to call these things is 1/6 so what is one well one or one whole is sick six so this is 1/6 2/6 3/6 4/6 5/6 and then 6/6 so there we go that is where one is on this number line