One-to-one correspondence in learning maths, Mathematics

Assignment Help:

How does your answer to this question compare with mine, which follows?

i) To begin with, 1 laid the beads out in a row for counting, so that I wouldn't leave any out or count any of them twice. In other words, I placed them ii an order.

ii) Next, to count them I began reciting number names in the conventional counting sequence. I could do this because I know enough of them in that order, at least as many as the number of beads I was asked to count. While counting them, I touched each bead once (actually or mentally) as I said each number name, and left no bead untouched. This means that 1 paired one bead with one number name. In other words, 1 set up a one-to-one correspondence.

iii) At each stage of counting, I classified the beads into two groups'- those that had been counted, and those that were still to be counted.

iv) As I touched the tenth bead ( I had 10 beads altogether), I said 'ten'.

Seconds later 1 said that I have ten beads. This means that the label 'ten'. Which associated with the touching of the last bead, has changed its role and is now used to describe all the beads.

So, carried out four different processes to be able to count the number of beads - ordering, classifying, setting up a one-to-one correspondence and using a number name in two different ways.

But where do most of us begin when we introduce counting to children? We don't even bother to find out whether the child has the ability to sort and to order objects. And, regarding one-to-one correspondence, we just indicate once or twice to the child that each object should be touched only once in coding.

We don't give her enough time to understand or practise what this actually means. So we should not be surprised if a child, on being reprimanded for counting incorrectly, responds as Rani did:

"But what's wrong? You asked me to say 'one, two, three .... ' and touch these things the same time. So what if I can say till 20 as I touch them, and you can say only !ill I5 !"

The fourth step listed above is the most confusing of them all to a child. The following situation often arises in this context.


Related Discussions:- One-to-one correspondence in learning maths

Triangles, ABC is a triangle right angled at c. let BC=a, CA=b, AB=c and lr...

ABC is a triangle right angled at c. let BC=a, CA=b, AB=c and lrt p be the length of the perpendicular from C on AB. prove that cp=ab and 1/p2=1/a2+1/b2

Fractions, what Is the common denominator for 1/2 and 1/4

what Is the common denominator for 1/2 and 1/4

Least common denominator using primes, Least Common Denominator Using Prime...

Least Common Denominator Using Primes: A prime number is a whole number (integer) whose only factors are itself and one. So the first prime numbers are given as follows: 1,

Sets, creative assignment about sets

creative assignment about sets

Quadratic equation modeling profitability, Sam''s sport''s equipment sells ...

Sam''s sport''s equipment sells footballs. They maximized their profitability last year at (6,4) where x represents employees and P(x) represents profitability. Sam noticed that wh

Fraction, Maria has a slice of pizza that is1/6 the pizza. Ben has a slice ...

Maria has a slice of pizza that is1/6 the pizza. Ben has a slice of pizza that is 1/3 of the pizza . Maria''s slice is bigger .draw pizzas to show how this possible .

Complex numbers, express the complex number z=5+i divide 2+3i in the form ...

express the complex number z=5+i divide 2+3i in the form a+ib

Properties of exponential form, Properties 1.   The domain of the logar...

Properties 1.   The domain of the logarithm function is (0, ∞ ) .  In other terms, we can just plug positive numbers into a logarithm! We can't plug in zero or a negative numbe

Drug administration, A drug is administrated once every four hours. Let D(n...

A drug is administrated once every four hours. Let D(n) be the amount of the drug in the blood system at the nth interval. The body eliminates a certain fraction p of the drug duri

Monotonic, Monotonic, Upper bound and lower bound Given any sequence {a...

Monotonic, Upper bound and lower bound Given any sequence {a n } we have the following terminology: 1.   We call or denote the sequence increasing if a n n+1 for every n.

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd