Wee Pip Posted July 23, 2011 Share Posted July 23, 2011 Is the Partial Product Method for teaching division a bad thing to teach? Here is an explanation: http://www.scribd.com/doc/27636818/Partial-Product-Division Scroll down. I could see myself using the x10 method on page 2. Just wondering if this is a bad method to teach, or a good one. It is very similar to MM's way of teaching division by subtraction, and then how she subtracts number xs 100s and 10s to get closer to the answer. I'm wondering if my dd would like this better, but I don't want to ruin her for life:) Quote Link to comment Share on other sites More sharing options...
Sara Umm Sakeena Posted July 23, 2011 Share Posted July 23, 2011 Oooo, im so glad you posted this. i discovered the partial products method a few years ago when i stumbled across this site: http://fivejs.com/a-better-way-to-multiply-the-partial-products-method/ i like having a video to look at :001_smile: Also, i found this recently http://www.khanacademy.org/ but here he goes into a new multiplication method I have never seen, called Lattice multiplication similiar to above: http://www.khanacademy.org/video/lattice-multiplication?playlist=Arithmetic I have to see this a couple more times to get it esp. the larger numbers ;) Which do you prefer? I know multiplication was HARD for dd and i was glad i found the partial products method but more in shock no one ever taught me this in school AND comments on youtube from professor's who had never even seen it! The fact that you do the multiplication first THEN all the adding makes it easier than switching back and forth. I guess also it depends on the person. I had to get used to the PPM but once I did, i prefered it and so did my daughter and it was easy to check if she made mistakes. You cannot do that easily with typical long multiplication. Sara Quote Link to comment Share on other sites More sharing options...
Sara Umm Sakeena Posted July 23, 2011 Share Posted July 23, 2011 (edited) I think when it comes to this it's good to choose one way to multiply, teach that until the child has it down well, then later introduce another way just so he/she is 1) familiar with the other method and 2) won't freak out teachers or other adults who have only seen the one common way, lol Also, when learning new concepts some children just don't "get it" for weeks and a different approach is needed. Division with this method is covered on both the websites i posted. I would use what method is easiest for her to understand. and i misspelled similar in my first reply, sorry i just HAD to say it:tongue_smilie:ocd ~Sara Iman wa Ilm Seminary (Faith and knowledge seminary) Edited July 23, 2011 by Sara Umm Sakeena Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.