►This site was originally created for my kids and their cousins, because we did science together. We eventually added more friends and I ended up having science classes for five years. I am no longer adding to the site (since 2014), but will leave it up for others' use. I do post to facebook occasionally if I come across something to share. =)

►Please accept my apology for any broken links or videos that do not work. I am always disappointed when people take down their videos from YouTube. It makes it hard to find just the right replacement. And because the videos were posted years ago, I usually have no recollection of what the video was about.
I kept thinking I would have time after my kids graduated, but life has filled up my free time with new responsibilities. =)

►Please do not email, asking me to post your website link, or to review something to put on my site. Any resources posted on this site are things I had found on my own during my regular searching for material I needed at the time, and liked it well enough to post here. There have never been any affiliates on my site, and as it is no longer active, would not be worthwhile at this point. ;)
Thank you!

Dividing Fractions; "Reciprocal"

This first video is not very loud, and parents of younger children may want to simply use it as an example of how to teach the concept.

I show first (by drawing it out) that 6/2 = 3, then show how 6 divided by ½ cannot equal 3, but instead equals 12.  Use several examples of this.  12/4 = 3, but 12 divided by ¼ = 48.

(1) Visual aid of how inverting (flipping upside down) the second term, then multiplying the fractions will actually give the correct result.  =)

(2) A reciprocal is an inverted fraction, that when multiplied by the original fraction, gives an answer of 1.
When dividing fractions, you invert (flip upside down) the second term.  This inverted fraction is the reciprocal of the original fraction, and vice versa.
You cannot invert mixed fractions.  You would need to change a mixed fraction into an improper fraction first.

(3) Dividing fractions, part 1

(4) Dividing mixed numbers

(5) Dividing fractions, part 2

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