The learner was completely confused, and even though she read through and listened to the video, she still had no idea what the difference was between factorials, permutations, and combinations. She also was baffled as to how they might relate to her in the "real world".
Being the teacher I am, I decided to Google these terms and search for any website that might offer a simple explanation.
I did find one... and that was Kahn Academy. All the other websites had examples and explanations, but they were, in my opinion, still too complicated. I was looking for a simple and easy way to try to break down the difference so that my students, who were preparing for their GED math test, might have a better understanding.
Having found, not one, but several videos on factorials, permutations, and combinations gave me a sense of relief. I now have a resource for my students. There are also several samples worked out through videos.
As a teacher, watching those videos, I now have a better understanding of how to teach the difference.
I would highly suggest that if you are teaching your students these GED math concepts, you go to Kahn Academy and view these videos.
They helped me tremendously.... and I am anxious to meet with my student in a few days to share what I have learned.
You might be thinking... just TELL me... what IS factorials, permutations, and combinations! In all honesty, I am still learning myself. What I can tell you is once you view the videos.... perhaps even once or twice..... you will have a great understanding! I also think that you will then be able to, in simple math language, explain to your learners, not only the difference but also give them examples.
Check out videos on factorials, permutations, and combinations!
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