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Math Teachers Chatboard

No-homework policy

by coyoteboy

Jan 9, 2015

Our school is pushing towards a general no-homework policy. Is there anybody out there successfully doing this, or tried it and can offer some feedback? I teach 8th grade pre-algebra.

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MCN Math concepts can be used to determine homework?

First, some basic vocabulary:

Standardized learner: Student who's assessment of math learned falls within one standard deviation of class average for a particular class taught by same teacher.

Average homework: Homework that produces a reasonably normal distribution of corr...See More

Jan 24, 2015

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coyoteboy Ok, my point exactly. If it's so hard to get homework right, why not look for a more effective strategy?

Jan 27, 2015

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Modulus/Cross-Product ?

by ChristineBunny

Dec 29, 2014

High-school education, Procedural-programing education, Fair bitwise-operation education,

tag words involved with this question: [ &37; Operator, Matrices, remainder of division, Modulus/Cross-Product ]

tutoring request: Please help me understand the pattern of these results. What aspects of math or bit manipulation is occurri...See More

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ChristineBunny Mr/Ms Modulo Dec 30, 2014 That was a fantastically educational answer! and yes it took this long for me to get back into it considering the Christmas insanity! Thank you so much for a very helpful response! This is going to be very useful to me in my work! thank you! *happy hugs!* Good tutorial!

so 16 mod 2 = 0 16 mod 8 = 0 17 mod 8 = 1 7...See More Mr/Ms Modulo Dec 30, 2014 That was a fantastically educational answer! and yes it took this long for me to get back into it considering the Christmas insanity! Thank you so much for a very helpful response! This is going to be very useful to me in my work! thank you! *happy hugs!* Good tutorial!

so 16 mod 2 = 0 16 mod 8 = 0 17 mod 8 = 1 75 mod 50 = 25 75 mod 25 = 0 2 mod 490834752349 = 2

thank you for helping me understand! *^-^*

On 12/30/14, Modulo wrote: > The operator you are designating &37; is usually (in the US > anyway) called mod. So where you write 10 &37; 2 I would > normally write 10 mod 2. > > Basically what the value of "a mod b" is the remainder when > a is divided by b. > > Looking at some of your examples, the last 9 of them had a > value of 4 because if you divide 4 by a number that is > bigger than 4 you will always get a remainder of 4 > > You also had 2 mod 100 as 2, which makes sense since if you > divide 2 by 100 you have a remainder of 2. > > 18 mod 4 would be 2 (4 goes into 18 4 times (which we do > not care about) with a remainder of 2, which is the value > of the expression. > > The tricky ones are the negatives, but it still holds > together (as math should). Let's look at 4 mod -3. How > many times does 03 divide into 4? -1. And what is the > remainder? 1. > > 4 mod -2 : -2 goes into 4 -2 times with a remainder of 0 so > 4 mod -2 = 0 > > I hope this helps. This is one of those concepts that is > really simple once it clicks. Hopefully now it will click. > Feel free to ask follow-ups. > > On 12/29/14, ChristineBunny wrote: >> High-school education, >> Procedural-programing education, >> Fair bitwise-operation education, >> >> tag words involved with this question: >> [ &37; Operator, Matrices, remainder of division, >> Modulus/Cross-Product ] >> >> tutoring request: >> Please help me understand the pattern of these results. >> What aspects of math or bit manipulation is occurring to >> result in these answers? Please help me visualize the >> process occurring to achieve these results. >> These answers are calculated by the Secondlife physics >> engine consistently. >> >> 2 &37; 100=2 >> 3 &37; 100=3 >> 100 &37; 2=0 >> 100 &37; 3=1 >> 4 &37; -4=0 >> 4 &37; -3=1 >> 4 &37; -2=0 >> 4 &37; -1=0 >> 4 &37; 1=0 >> 4 &37; 2=0 >> 4 &37; 3=1 >> 4 &37; 4=0 >> 4 &37; 5=4 >> 4 &37; 6=4 >> 4 &37; 7=4 >> 4 &37; 8=4 >> 4 &37; 9=4 >> 4 &37; 10=4 >> 4 &37; 11=4 >> 4 &37; 12=4 >> 4 &37; 16=4

Jan 12, 2015

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You're welcome and thanks for coming back and saying something Often people post questions, get answers, and are never heard from again. When that happens you never know if you just were not helpful or are they just rude. It is nice to know that this was helpful.

On 1/12/15, ChristineBunny wrote: > > > Mr/Ms Modulo Dec 30, 2014 > That was a f...See Moreand thanks for coming back and saying something Often people post questions, get answers, and are never heard from again. When that happens you never know if you just were not helpful or are they just rude. It is nice to know that this was helpful.

On 1/12/15, ChristineBunny wrote: > > > Mr/Ms Modulo Dec 30, 2014 > That was a fantastically educational answer! and yes it took > this long for me to get back into it considering the Christmas > insanity! Thank you so much for a very helpful response! This is > going to be very useful to me in my work! thank you! *happy > hugs!* Good tutorial! > > so > 16 mod 2 = 0 > 16 mod 8 = 0 > 17 mod 8 = 1 > 75 mod 50 = 25 > 75 mod 25 = 0 > 2 mod 490834752349 = 2 > > thank you for helping me understand! *^-^* > > > > On 12/30/14, Modulo wrote: >> The operator you are designating &37; is usually (in the US >> anyway) called mod. So where you write 10 &37; 2 I would >> normally write 10 mod 2. >> >> Basically what the value of "a mod b" is the remainder when >> a is divided by b. >> >> Looking at some of your examples, the last 9 of them had a >> value of 4 because if you divide 4 by a number that is >> bigger than 4 you will always get a remainder of 4 >> >> You also had 2 mod 100 as 2, which makes sense since if you >> divide 2 by 100 you have a remainder of 2. >> >> 18 mod 4 would be 2 (4 goes into 18 4 times (which we do >> not care about) with a remainder of 2, which is the value >> of the expression. >> >> The tricky ones are the negatives, but it still holds >> together (as math should). Let's look at 4 mod -3. How >> many times does 03 divide into 4? -1. And what is the >> remainder? 1. >> >> 4 mod -2 : -2 goes into 4 -2 times with a remainder of 0 so >> 4 mod -2 = 0 >> >> I hope this helps. This is one of those concepts that is >> really simple once it clicks. Hopefully now it will click. >> Feel free to ask follow-ups. >> >> On 12/29/14, ChristineBunny wrote: >>> High-school education, >>> Procedural-programing education, >>> Fair bitwise-operation education, >>> >>> tag words involved with this question: >>> [ &37; Operator, Matrices, remainder of division, >>> Modulus/Cross-Product ] >>> >>> tutoring request: >>> Please help me understand the pattern of these results. >>> What aspects of math or bit manipulation is occurring to >>> result in these answers? Please help me visualize the >>> process occurring to achieve these results. >>> These answers are calculated by the Secondlife physics >>> engine consistently. >>> >>> 2 &37; 100=2 >>> 3 &37; 100=3 >>> 100 &37; 2=0 >>> 100 &37; 3=1 >>> 4 &37; -4=0 >>> 4 &37; -3=1 >>> 4 &37; -2=0 >>> 4 &37; -1=0 >>> 4 &37; 1=0 >>> 4 &37; 2=0 >>> 4 &37; 3=1 >>> 4 &37; 4=0 >>> 4 &37; 5=4 >>> 4 &37; 6=4 >>> 4 &37; 7=4 >>> 4 &37; 8=4 >>> 4 &37; 9=4 >>> 4 &37; 10=4 >>> 4 &37; 11=4 >>> 4 &37; 12=4 >>> 4 &37; 16=4

Jan 13, 2015

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fractions

by hannah

Jan 12, 2015

you are no help

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DOK Questions

by Cinda

Jan 11, 2015

Does anyone have any good resources to find Depth of Knowledge leveled questions for 5th grade math?

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math

by seawad

Jan 11, 2015

hello

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mentoring

by Rich

Dec 27, 2014

Greetings I am a retired teacher of 33 yrs with an additional 3 yrs of consulting work to various school districts across the US. I am looking to mentor teachers. I have experience teaching grades 4-12. I am open to share a wealth of ideas, strategies ,and techniques that would enhance daily learning in the classroom. Thank you.

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pls help

by rishi

Dec 22, 2014

bring 100 using 1,1,2,2.... any operations allowed..

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math

by calean

Dec 10, 2014

hi I need help with my work

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Greetings Everyone!

by MultiplicationHipHop

Dec 9, 2014

Greetings Everyone! My name is Greg Mason and I am new to the post! I'm honored to be here and I look forward to networking with you all and exchanging ideas on math problems and solutions.

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this math game rocks!

by mathteacher

Nov 30, 2014

use all 4 numbers and + - x / to make 24

4 numbers math game

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Steve On 11/30/14, mathteacher wrote: > use all 4 numbers and + - x / to make 24 > > 4 numbers math game

For high school kids, use exactly 8 eights )(and math sighs) to make 1000. one example: (8888-888) / 8

There are at least two other ways, and I think 3 - using exponents, addition, multiplication, etc.

Dec 2, 2014

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mathtricks.ca mathtricks.ca offers many fun games too

Dec 7, 2014

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