numbers

Shailesh Shirali

Pre-history

Hriday Kant Dewan

Before we begin certain issues entwined with the word “Pedagogy” need to be pointed out and B elaborated. This word is commonly used as a convenient hold all but because of this and in some contexts inspite of this it still cannot be completely discussed by itself.  To explore its implications some other key elements need to be specified.

Can Pedagogy stand by itself?

Ten-frames are relatively new to India. They are very useful at the beginning for learning the single-digit numbers. They also facilitate automatization of addition facts with single digit numbers. In addition, they can provide a lot of conceptual clarity wrt odd-even.

Three versions are included:

This worksheet makes the kids play with numbers and appreciate how these numbers (1-9) can be represented in different ways. Please add your feedback, especially after using it in your classroom.

The idea of the basic counting module is to look beyond just numbers to figure out why we need numbers at all, why do we count and how does it help us.  This is the building block towards understanding systematic listing, thinking and reasoning skills in higher classes.
 

This worksheet accompanies the lesson plan Basic counting and why do we need to count. This class covers basic counting, using real-life examples.

The understanding of integers and negative numbers in particular poses certain challenges for many people. One difficulty lies with the fact that the negative sign appears along with a number to indicate an object, a number, but the same negative sign is also used for the operation of subtraction.I have shared here an approach which I have learnt from Shri P. K. Srinivasan. I have used it for many years successfully with many batches of students and shared it with many teachers in workshop settings.

Read on some interesting problems concerning rational numbers

Swati Sircar and Sneha Titus, writing on the Sums of Consecutive Natural Numbers, show how mental mathematics becomes visual all of a sudden, and this Low Floor High Ceiling activity is sure to appeal to a variety of learning styles.

They say the pen is mightier than the sword, and authorities have often agreed. From outlawed religious tracts and revolutionary manifestos to censored and burned books, we know the potential power of words to overturn the social order. But as strange as it may seem, some numbers have also been considered dangerous enough to ban. Alessandra King details the history behind illegal numbers.

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