Some of you old farts on the Hog
Mar 9, 2019 09:49:05 #
rmorrison1116 wrote:
how about progressive addition.
I don't know just what progressive addition is.
If you think about it, it's not just multiplication: addition also requires memorization.
Unless by progressive addition you mean just adding 1 as many times as you have to in order to add the total number you want added.
Long addition.
Mar 9, 2019 10:18:10 #
I myself am too old to change, but I think the Idea is to have students look at problems in a way that will make it easier and more logical when working with algebraic and higher functions. Math tables still need memorization and any mental math you can muster is a big help. Too many folks look at math as just an exercise with dry numbers following prescribed operations rather than viewing math as our attempt to define distinct relationships which we are looking for in the first pace as opposed to a mumble jumble of numbers.
Mar 9, 2019 10:35:14 #
DirtFarmer wrote:
I don't know just what progressive addition is.
If you think about it, it's not just multiplication: addition also requires memorization.
Unless by progressive addition you mean just adding 1 as many times as you have to in order to add the total number you want added.
Long addition.
If you think about it, it's not just multiplication: addition also requires memorization.
Unless by progressive addition you mean just adding 1 as many times as you have to in order to add the total number you want added.
Long addition.
Remarkable what the students will be able to do by the end of grades 2 and 3. But there IS memory involved!!! By the end of grade 4 they might be able to remember their name and/or tie their shoelaces!
PROGRESSIVE MATH GAME - University of Wyoming
Last Updated: 7/26/18
Teaching Standard:
Mar 9, 2019 10:50:53 #
Mar 9, 2019 10:53:07 #
Mar 9, 2019 10:53:11 #
Anhanga Brasil
Loc: Cabo Frio - Brazil
Why to go back ? I got the result before the lady of the coffee using nothing but my brain.
It is a crime to teach children that way, IMHO.
It is a crime to teach children that way, IMHO.
Mar 9, 2019 10:53:25 #
That’s a do-it-in-your-head question--no pencil or whiteboard needed.
As for the video, I’m with the coffee guy.
As for the video, I’m with the coffee guy.
Mar 9, 2019 10:55:04 #
Anhanga Brasil
Loc: Cabo Frio - Brazil
fotkaman wrote:
How'bout the merchant's math: 35x12 is the same as 12x35
10x35=350
2x35= 70
Total - 420. Done! It can easily be done in head...
10x35=350
2x35= 70
Total - 420. Done! It can easily be done in head...
That is what I did. Experience comes with life.
Mar 9, 2019 11:32:25 #
No wonder as a country our education in math is ranked so low! Talk about taking simple and making it hard! Not to mention wasting time
Certainly hope she is not really teaching our youth!
Certainly hope she is not really teaching our youth!
Mar 9, 2019 11:47:07 #
trainspotter
Loc: Oregon
rmorrison1116 wrote:
How about transitive progressive addition? (my granddaughter just "asks" her cellphone for all answers).how about progressive addition.
Mar 9, 2019 11:53:49 #
robertjerl wrote:
And I used to show my students how to multiply or divide by 10, 100 etc by just moving the decimal point. Some of them didn't believe it would work and asked their math teachers. One young math teacher stopped me in the cafeteria and said she had never heard of doing it that way. ??????
You're scaring me!
Mar 9, 2019 12:02:23 #
trainspotter wrote:
How about transitive progressive addition? (my granddaughter just "asks" her cellphone for all answers).
I'm sure that her cellphone will give her an answer. But how does she know that the answer she gets will be correct?
(Same comment applies to a calculator, but the cellphone has a lot more leeway to be influenced by others).
Mar 9, 2019 12:07:34 #
Mar 9, 2019 12:14:45 #
RobertW
Loc: Breezy Point, New York
I calculated that answer "In-my-head" in exactly 3 seconds
e.g. 35X10=350
35X2 = 70
350 + 70 = 420!!
e.g. 35X10=350
35X2 = 70
350 + 70 = 420!!
Mar 9, 2019 12:15:13 #
RobertW
Loc: Breezy Point, New York
I calculated that answer "In-my-head" in exactly 3 seconds
e.g. 35X10=350
35X2 = 70
350 + 70 = 420!!
e.g. 35X10=350
35X2 = 70
350 + 70 = 420!!
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