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Math Teachers Chatboard

happy pi day to all the mathies!!

by ron/nj, nfm

Mar 14, 2015

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Sequence question

by Casey

Mar 13, 2015

Teacher in training here! I am developing a unit that focuses on adding and subtracting within ten. I am having a hard time sequencing the unit. I have decided I want to focus on them separately, but how do I introduce it and develop the concept throughout the unit? Should I start with adding 1 and 2, and progress? Any suggestions would be wonderfu...See More

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Divider

by Susan

Mar 12, 2015

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7+7-3·0+1

by kylan

Nov 13, 2014

7+7-3·0+1=

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ok We do, that's why the top 50&37; remember it without a mnemomic.

Mar 6, 2015

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so On 3/06/15, ok wrote: > We do, that's why the top 50&37; remember it without a > mnemomic.

only the top 50&37; need to actually understand it? Personally I always shot for a little higher success rate.

Mar 7, 2015

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Document Cameras in the classroom

by Charles Ruben

Feb 27, 2015

I teach an engineering class entitles Engineering, Design and Development. My students are really excited about this project and need justification for their current problem. if you could take a minute out of your day to fill out their survey I would be very greatful. The link is here -> [link removed]

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area under the curve

by Tom

Feb 26, 2015

I used the integration method to calculate the following equation to find out the area between 1 and 4 was 51. The equation is 0.6666x^3 - x^2 + 8x + c.

However, when I use Trapezoidal rule and simpsons rule, the results are 82.

Why there are such difference in result?

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Interval too long On 2/26/15, Tom wrote: > I used the integration method to calculate the following > equation to find out the area between 1 and 4 was 51. > The equation is 0.6666x^3 - x^2 + 8x + c. > > However, when I use Trapezoidal rule and simpsons rule, > the results are 82. > > Why there are such difference in result? >

Th...See More

Feb 26, 2015

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Simple combined events

by Probability

Jan 29, 2015

from two throws of a die, find the probability of getting two sixes

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ok Make a sample space

1,1 1,2 1,3 1,4 1,5 1,6 2,1 2,2 2,3 2,4 2,5 2,6 3,1 3,2
3,3 3,4 3,5 3,6 4,1 4,2 4,3 4,4 4,5 4,6 5,1 5,2 5,3 5,4
5,5 5,6 6,1 6,2 6,3 6,4 6,5 6,6

P(two 6s) = 1/36

as shown by: 1/6(first roll) x 1/6(second roll) = 1/36

Look what else you can see:

P(doubles) = 6/36 = 1/6 P (one...See More

Feb 24, 2015

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ok On 2/24/15, ok wrote:

> Look what else you can see: > > P(doubles) = 6/36 = 1/6 > P (one 4) = 11/26 > > etc.

Whoops, I counted the two fours as a favorable event. And I turned a 36 into a 26. So 10/36

Feb 24, 2015

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"Focus on Five" Model in Mathematics

by Erin

Feb 17, 2015

I am wondering how people are implementing this model in their Mathematics program and what you are doing to help those students on whom you are focusing?

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What is it? On 2/17/15, Erin wrote: > I am wondering how people are implementing this model in > their Mathematics program and what you are doing to help > those students on whom you are focusing?

A google search comes up empty on "Focus on Five". Do you have a link to something that explains what that model is?

Feb 18, 2015

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Common Core Math Texts

by Dlorah Wismar

Feb 13, 2015

Hello .. We are looking to adopt new math textbooks for our K-8 school. I haven't seen a lot of rave reviews on any of the common core aligned texts out there. Anyone already using a new "common core" aligned series. Do you love it? Hate it? Just in between? I'd love to hear some real world experiences.

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Richard Schiller Education Time Courseware Inc. has a "daily homework book" for Algebra, Geometry and soon for Algebra 2 common core aligned that provides sequential homework assignments to be done in the workbook for the entire school year matching the time line set by common core standards. The series enables TEACHERS TO CONCENTRATE ON JUST PROVIDING IN...See More

Feb 14, 2015

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Teresa Ryan On 2/13/15, Dlorah Wismar wrote: > Hello .. We are looking to adopt new math textbooks for > our K-8 school. I haven't seen a lot of rave reviews on > any of the common core aligned texts out there. Anyone > already using a new "common core" aligned series. Do you > love it? Hate it? Just in between? I'd love to hear > s...See More

Feb 14, 2015

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Project Based Learning Cures Hospital ER Problems

by Teachers.Net Gazette

Jan 29, 2015

Sarah Powley's latest article about a high school project:

Project Based Learning Cures Hospital ER Problems – High School Students, PBL, STEM & Literacy

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