Comments for Let's Play Math! http://letsplaymath.net Mon, 28 May 2012 22:50:40 +0000 hourly 1 http://wordpress.com/ Comment on The Game That Is Worth 1,000 Worksheets by 2nd grade math http://letsplaymath.net/2006/12/29/the-game-that-is-worth-1000-worksheets/#comment-45559 Mon, 28 May 2012 22:50:40 +0000 http://letsplaymath.wordpress.com/2006/12/29/the-game-that-is-worth-1000-worksheets/#comment-45559 Very cool game which really worth more than 1000 math worksheets. Kids using this game may need not to struggle in math topics like fractions or basic arithmetic.

]]> Comment on PUFM 1.3 Addition by PUFM 1.2 Place Value « Let's Play Math! http://letsplaymath.net/2012/05/21/pufm-1-3-addition/#comment-44996 Mon, 21 May 2012 17:47:41 +0000 http://letsplaymath.net/?p=13585#comment-44996 [...] the Profound Understanding of Fundamental Mathematics Series. [Go to the previous post. Go to the next post. Or start at the [...]

]]> Comment on Math Facts Are like Learning to Type by PUFM 1.3 Addition « Let's Play Math! http://letsplaymath.net/2008/05/22/math-facts-learning-to-type/#comment-44978 Mon, 21 May 2012 11:14:31 +0000 http://letsplaymath.wordpress.com/?p=623#comment-44978 [...] Math Facts Are like Learning to Type [...]

]]> Comment on PUFM 1.2 Place Value by PUFM 1.3 Addition « Let's Play Math! http://letsplaymath.net/2012/04/30/pufm-1-2-place-value/#comment-44976 Mon, 21 May 2012 11:14:22 +0000 http://letsplaymath.net/?p=13568#comment-44976 [...] post is part of the Profound Understanding of Fundamental Mathematics Series. Go to the previous post. Go to the next post. Or start at the [...]

]]> Comment on Easy-to-Make Counting Rope by PUFM 1.3 Addition « Let's Play Math! http://letsplaymath.net/2011/10/25/easy-to-make-counting-rope/#comment-44973 Mon, 21 May 2012 11:14:07 +0000 http://letsplaymath.net/?p=15307#comment-44973 [...] A wonderful tool/toy for this stage is a counting rope. It’s flexible, portable, and fun to use, and it reduces a child’s reliance on finger-counting. The pattern of alternating colors in groups of five beads makes visible the fingers-and-hands pattern of our number system. Check it out: Easy-to-Make Counting Rope. [...]

]]> Comment on Tell Me a (Math) Story by PUFM 1.3 Addition « Let's Play Math! http://letsplaymath.net/2012/05/14/tell-me-a-math-story/#comment-44972 Mon, 21 May 2012 11:14:05 +0000 http://letsplaymath.net/?p=16912#comment-44972 [...] Tell Me a (Math) Story [...]

]]> Comment on How to Read a Fraction by Denise http://letsplaymath.net/2007/11/07/how-to-read-a-fraction/#comment-44955 Sun, 20 May 2012 21:14:25 +0000 http://letsplaymath.wordpress.com/2007/11/07/how-to-read-a-fraction/#comment-44955 You’re right, Jackie, that sounds like a contradiction. Perhaps I should have said it this way: “A fraction can be written as a division problem.”

]]> Comment on How to Read a Fraction by Jacki http://letsplaymath.net/2007/11/07/how-to-read-a-fraction/#comment-44909 Sat, 19 May 2012 17:27:10 +0000 http://letsplaymath.wordpress.com/2007/11/07/how-to-read-a-fraction/#comment-44909 In the beginning of this post you say, “A fraction is not something to do”, but at the end of the post you say, “A fraction is a division problem”. Isn’t that contradictory?

]]> Comment on How to Count Infinity via Minute Physics by Aaron Carpenter http://letsplaymath.net/2012/05/17/how-to-count-infinity-via-minute-physics/#comment-44821 Fri, 18 May 2012 01:34:20 +0000 http://letsplaymath.net/?p=16978#comment-44821 thanks, this makes a good follow-up video to when I usually try to at least begin to explain this concept at the high school level (setting up one-to-one correspondences from natural numbers to integers and fractions between 0 and 1) … I’ve even turned Cantor’s diagonalization argument into a game with some honors classes … they usually figure out it’s ‘rigged’ after a few turns

]]> Comment on Diagnosis: Math Workbook Syndrome by Mama Squirrel http://letsplaymath.net/2008/05/16/diagnosis-math-workbook-syndrome/#comment-44810 Thu, 17 May 2012 17:24:04 +0000 http://letsplaymath.wordpress.com/?p=163#comment-44810 It seems so backward to me as a parent/teacher, not to have the idea of “what makes ten” central to a child’s basic number understanding. With my three homeschooled children, I used Miquon Math, with Cuisenaire rods and a hundred chart (and other manipulatives like pennies and dimes) in the primary years. We spent a LOT of time working on concepts around ten, and also nine and eleven (what makes almost ten, what makes one more than ten, etc.). It was one of the things I liked best about the Miquon program, putting all that emphasis on tens. From what you’re saying, I don’t think it was overkill.

]]> Comment on Thinking (and Teaching) like a Mathematician by » Math Teachers at Play blog carnival #50 » Mathematics for Teaching http://letsplaymath.net/2012/05/08/thinking-and-teaching-like-a-mathematician/#comment-44765 Wed, 16 May 2012 14:13:09 +0000 http://letsplaymath.net/?p=16853#comment-44765 [...] - Thinking (and teaching) like a mathematician. Says Denise, “Being ‘good at math’ means much more than being able to work with [...]

]]> Comment on PUFM 1.0 Introduction by Shannon http://letsplaymath.net/2012/04/09/pufm-1-0-introduction/#comment-44707 Tue, 15 May 2012 05:07:01 +0000 http://letsplaymath.net/?p=13565#comment-44707 s/How you have fun./Hope you have fun./

]]> Comment on PUFM 1.0 Introduction by Shannon http://letsplaymath.net/2012/04/09/pufm-1-0-introduction/#comment-44706 Tue, 15 May 2012 05:06:28 +0000 http://letsplaymath.net/?p=13565#comment-44706 Parker & Baldridge is on my wish list. Currently reading Hung-Hsi Wu’s “Understanding Numbers in Elementary School Mathematics”, and Lore Rasmussen’s “First Grade Diary.” No room to fit in another elementary math book. How you have fun.

]]> Comment on Tell Me a (Math) Story by Guillermo Bautista http://letsplaymath.net/2012/05/14/tell-me-a-math-story/#comment-44704 Tue, 15 May 2012 04:07:56 +0000 http://letsplaymath.net/?p=16912#comment-44704 I agree. I do this with my nephews ages 4-7 during weekends. I would usually ask them math questions from the movies that we watch.

]]> Comment on Kitten Poses a Puzzle by John http://letsplaymath.net/2009/04/27/kitten-poses-a-puzzle/#comment-44698 Tue, 15 May 2012 00:30:25 +0000 http://letsplaymath.wordpress.com/?p=4004#comment-44698 35 are NOT green.

Greg likes red and green balls.
Greg likes 40+ 10 -20 balls ( = 30)
There are the same number of red and green balls.
There must be 15 red and 15 green balls.
There are 50 balls (red, blue or green) altogether.

15 red, 15 green, 20 blue.

Non-green = 15 red + 20 blue = 35 total

]]>