Mathematics 24x7

There is no escape...believe it or not. Mathematics is everywhere.

# All Blog Posts (59)

### Geonext Tutorial 1 - Constructing an Equilateral Trianlge

Added by Guillermo Bautista on January 22, 2010 at 2:10pm — No Comments

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Added by Rashmi Kathuria on January 22, 2010 at 1:30pm — 1 Comment

### HOW MANY LOCKS ARE REQUIRED AND HOW MANY KEYS EACH GENERAL HAVE TO OPEN THE SAFE?

Hello,

Friends.I am a newly joined member of this site. And feeling interesting to read and learn different

things in mathematics.I am a lecturer in mathematics and taking the course of Combinatorics.I came a

across the following problem problem '' Six Generals propose locking a safe containing top secret with a

number of different locks.Each General will be given keys to certain of these locks.How many locks are

required and how many keys must each General have so that… Continue

### Helical Number Lines

I am new to this web site and have a subject I would like to discuss.

I am a retired engineer, an MA of Trinity College, Cambridge, having graduated in 1948, and have become interested in the way children are taught numbers rather late in life.

This came about as a result of trying to a help an eight year old in the village who had lost his way mathematically, and had very little understanding of the number system.

I have always held the view that the understanding of an abstract… Continue

Added by John Taylor Harrison on December 31, 2009 at 4:10pm — No Comments

### Formative assessment in Mathematics

This is what we have planned for formative assessment in Mathematics.

Macro Plan- Formative assessment in Mathematics - Following guidelines are given to teachers.…

Continue

Added by Rashmi Kathuria on December 17, 2009 at 9:00pm — 1 Comment

### Are High School Mathematics Grades Inflated?

Have you succumbed to pressure from students, parents, and administrators to inflate the grades of your mathematics students? How have you been able to effectively avoid such pressures in an attempt to give "honest" grades?

Added by Teaching in Harmony on December 13, 2009 at 4:30am — No Comments

### Essay Writing Structure!

An essay can have a lot of intentions, but the basic structure of all type of essays will be same. You may be writing an argumentative essay to argue for a particular point of view or to may be doing a persuasive essay to explain the steps necessary to complete a task. Either way, your essay will have the same basic format and structure.

An essay consists of three major parts,

1.Introduction

2.Supporting Paragraphs

3.Summary Paragraph

Added by Janet Wilkins on November 6, 2009 at 10:10am — No Comments

### Math Contest for Elementary Students

Noetic Learning’s math contest for elementary students will be held on October 15. The contest is open to all accredited schools. A team leader from the school will administer the contest of 20 problem solving questions. The test results will be evaluated nationally and the top 10 students in each grade level will be recognized. Registration is free and the deadline is September 30. All interested team leaders should register at… Continue

Added by Li K. on September 8, 2009 at 11:49am — No Comments

### High Tech Cheating - Or Is It?

Hi Everyone,

I was just expressing some of my thoughts about "High Tech Cheating" over on my blog page.
http://eclecticgallimaufry.blogspot.com/2009/09/high-tech-cheating-or-is-it.html
If you are interested, take a look.

Thanks
Carolyn

Added by Carolyn on September 3, 2009 at 8:00pm — No Comments

### Connecting with teachers & engaging our students

Earlier today I presented at the ELH09 conference in Victoria, Australia.

I am a Secondary Mathematics teacher at Northern Beaches Christian School in Sydney, Australia. I was presenting about ways to connect with teachers through technology and ways to engage our students through technology.

Here is the link to the… Continue

Added by Mark Liddell on August 18, 2009 at 9:15am — No Comments

### Math Problem Solving Discussion Group

You are welcome to join the new "Math Problem Solving" group at Mathematics24x7. The link is on the lower left of the main page. Follow the link and press "Start Discussion" to post your math problem, or help others solve problems. Embed diagrams or equations in your text as images, if they improve the… Continue

Added by Colin McAllister on July 18, 2009 at 6:00pm — 4 Comments

### Should Programming Be Mandatory?

A conversation about programming and children recently unfolded on Twitter. One comment that stood out for me was the idea that programming should not be mandatory, that children should have the option to learn this skill. I disagree. I think programming has earned a place alongside reading, writing, math, science, and social studies.

In fact, introduction to programming concepts should begin as early as kindergarten. My colleagues and I have been teaching mathematics through… Continue

Added by Colleen King on July 18, 2009 at 12:00am — 7 Comments

### How do you perceive maths ?

The two following problem permit to know how you work your way in maths.

Explanation came after the two problems

## Triangle

Can you find wich configuration of the 3 points gives the greater area for the triangle A,B,C ?

Can you prove your it ?

## Trapezoid

Given the following picture of a trapezoid:

What's the area of the greyed…
Continue

Added by Christian Baune on July 14, 2009 at 9:30pm — 2 Comments

### APPLICATION OF GEOMETRY

Q1 Why only tripod stand is used in geographical survey?

A1 Three non collinear points always determine a unique plane. On rough surfaces tripod stands on a plane,so chances of error in measurments are minimal.

Added by Anita Sharma on July 4, 2009 at 9:48pm — 1 Comment

### Heartening Success of Nesin Mathematics Village

The Nesin Mathematics Village, or Nesin Matematik Koyu, in Turkey arose from controversial beginnings. I first read the story "Mathematics under arrest" of its controversial beginnings in 2007, when Professor Ali Nesin was unfairly charged as a criminal for… Continue

Added by Colin McAllister on June 30, 2009 at 7:00am — 2 Comments

### Boosting Motivation For Learning Mathematics

In the discussion, On teaching math successfully, on the LinkedIn.com forum, Math, Math Education, Math Culture; Dan, a math teacher at a community college, asks "... how to motivate students to learn math?" I replied: Dan, there are two branches of your question on this forum, but I think that we can handle that. David's reply on the other branch made me laugh, as he joked about… Continue

Added by Colin McAllister on June 25, 2009 at 5:51pm — 2 Comments

### Friendster.com as a Forum for Mathematics and Science

The social network Friendster.com is not renowned as an academic forum, but that didn't stop me from hosting discussions there on mathematical topics. You are welcome to join my Mirimatics discussion group, or even post a link to your own math blog there. (Friendster discussions support hypertext links). It is not a group where algebra problems are solved, as there are many of those… Continue

Added by Colin McAllister on June 21, 2009 at 8:30am — No Comments

### Images of Mathematicians and Mathematics on Postage Stamps

Follow this link to Jeff Miller Web Pages for more Images of Mathematicians on Postage Stamps. The newest stamp on this list is a 2007/2008 Arithmetic stamp from Portugal. The attached photo is from Jeff Miller Web… Continue

Added by Colin McAllister on June 12, 2009 at 3:45pm — 2 Comments

### Pecha Kucha

My Algebra I and Geometry classes are creating a Pecha Kucha with photos taken around the school (in some cases they used photos from the internet). They are using a variety of methods for presentation.. some have chosen to present as a power point with personal narration, some are recording over the slides for an automated presentation, and some are creating movies with narration. They are working in groups of 1, 2, or 3. I will try to post the best next week (our last week in school - yea!)

Added by Jim Carlton on June 9, 2009 at 7:04pm — 2 Comments

### Misconception in Math

1.A three digit number is always greater than a two digit number....more stress is on number of digits than the value of a number

2.When we multiply two numbers product is always greater...What about when multipling fractions or decimal numbers.

AND MUCH MORE

Watch this presentation.

Continue

Added by Ramneek kaur on June 8, 2009 at 9:00am — No Comments

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