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Current time:0:00Total duration:2:54

Measuring lengths with different units

Video transcript

this is a rectangle and yes this is a rectangle let's measure the green line below using both rectangles and a centimeter ruler so we have this green line and we're going to measure it in terms of rectangles and we're going to measure on this ruler and you immediately see the Green Line is equal to one rectangle long but if we measured in centimeters it's equal to six centimeters long so we could say the line is one rectangle long but it's six centimeters long and that makes sense because the rectangle is much more than a centimeter it's actually the length of a rectangle six centimeters so the length of a rectangle is longer than a centimeter you see that this is the length of the rectangle the same as a line while centimeter is this length the rectangle is actually six centimeters long so it takes blank rectangles than centimeters to measure the line well since the rectangle is longer it takes fewer rectangles and centimeters to measure the line so it's fewer rectangles and centimeters and you see that fewer rectangles one is fewer than six it took one it only took one rectangle to measure the line because a rectangle so long and it took six centimeters to measure the line so it took fewer rectangles than centimeters to measure the line let's keep going all right so we have this is a rectangle yes that is a rectangle let's measure the blue line below using both a rectangle and a centimeter ruler so it's a similar idea so when we look at this blue line the line is now two of these green rectangles long so it is two rectangles long now in terms of centimeters it is four four centimeters long four centimeters long the length of each rectangle is blank than a centimeter well each rectangle is more than a centimeter it's longer you see each rectangle is actually two centimeters so it's longer than a centimeter so it takes blank rectangles and centimeters to measure the line well since each rectangle is longer it's going to take fewer rectangles to measure the line so we'll select fewer right over there and you see that over the year it only took two rectangles to measure the but it took four centimeters to is fewer than four let's see let's let's do one more of these these are a lot of fun all right this is a rectangle let's measure the green line below same idea the line is four rectangles long the line is seven centimeters long the length of each rectangle is shorter oh sorry longer than a centimeter you see that right here each rectangle is more than one centimeter so it takes fewer rectangles then centimeters to measure the line so we've seen this we've seen this multiple times