Skip to main content

Decimal System

 What do you know about decimal system? How would you enable children to count any quantity and identify numerals till 9999?

The decimal system is a numeral system which organizes and classifies numerical quantities into different hierarchies of units. In the Casa it is offered when the child can count to ten with complete understanding; with the knowledge of the symbols 1-9 and can recognize zero.  The child is given the total decimal system– clearly, simply, harmoniously and with its unlimited, universal applicability. (Rachel Herndon)

Golden bead material and large number cards can be used to teach decimal system to Montessori students. They enable children to count any quantity and identify numerals till 9999.

THE GOLDEN BEAD MATERIAL:

It is made up of golden beads with same size. This material contains units, tens, hundreds, and thousands.  

  • A unit is a single bead—a point.
  • Ten is ten beads strung together on the wire—a line.
  • A hundred is 10 ten bars fastened together side by side—a square.
  • A unit of thousands is 10 hundred fastened together to form a cube 10 10 10 – a point.


EXERCISE 1:

PRESENTATION OF DECIMAL SYSTEM:

MATERIAL:


  • A single golden bead
  • A ten bar
  • A hundred square
  • A thousand cube.
  • Dark green mat

PRESENTATION:

  1. Bring the material to the table.
  2. Place the tray on the table and start three period lessons.
  3. Bring the unit bead in front of the child and tell him “this is one unit.”
  4. Then show him next the ten bars and say” this is one ten.”
  5. Now, move the square of hundred in front of the child and say “this is one hundred.”
  6. Now in the last, show him the cube of one thousand and tell him “this is one thousand.”
  7. In second period, show you one unit, ten bars or hundred units.
  8. In third period, ask him to tell the quantity” what is this.”

 

LARGE NUMBER CARDS:

They are the white wooden or plastic cards of varying in sizes with numeral written on them.

  • The units (1 to 9) are printed in green.
  • The tens (10 to 90) are printed in blue.
  • The hundreds (100 to 900) are printed in red.
  • The units of thousands (1000 to 9000) are printed in green.

 

 

EXERCISE 1)

INTRODUCTION TO DECIMAL SYMBOL:

MATERIAL:

The large number cards.

PERQUISITE:

The child must be able to count any quantity up to nine.

PRESENTATION:

Place the number cards i.e. 1, 10, 100, and 1000 on the table.
Arrange the number shown in the picture below. 


Now, point the unit card 1 and tell the child that “this is how we write one unit.
Then show 10 and tell him “this is how we write one ten.”

Similarly, do the same with rest of the cards.

In second period, place these cards randomly on the table and ask him to show you one hundred, one ten, or one unit etc.

In third period lesson, place a card and ask the child “what is this?”

Continue in the same way for the rest of the numerals.

To sum up, the exercises like complete layout of large number cards, group game identifying numerals and many more are helpful in teaching decimal system.


Comments

Post a Comment

Popular posts from this blog

Maria Montessori's discoveries

What are the discoveries made by Dr. Maria Montessori by observing the child? Maria Montessori made a lot of discoveries by observing the children. She is a founder of Montessori education. She conducted a lot of experiments and observed children by spending a lot of time with them. She discovered several aspects of children. She has specified some of the discoveries she had made during her work. According to Maria Montessori children work until they reach to their goal. They are very enthusiastic about the work which makes them select and concentrate on different activities which lead them to make them perfect in their inner development. The teacher or an adult should follow the child rather them to motivate him to do work.   When a child works in different areas of human activity at specific time that lead them to develop the awareness and usage of doing. The teacher should not ignore their inner urge of doing activities. When a child does activities again and again or
11 comments
Read more

MONTESSORI PROGRAM HELPS IN DEVEOLPING TACTILE SENSE

How does Montessori program help develop tactile sense?  Tactile sense is defined as the sense in which the child explore the world through his sense of touch and always eager to touch. In Montessori school, the directress values tactile urges and understand their roll in holistic development of the child. As Montessori states; “Although the sense of touch is spread throughout the surface of the body, the exercises given to the children are limited to the tips of the fingers, and particularly, to those of the right hand.” Tactile exercises are classified into four sets. Exploring texture Exploring weight Exploring temperatures Exercises of stereognostic sense Development of tactile sense in children: In Montessori classroom, Rough and Smooth Boards, Touch Tablets, and Fabric Box materials are introduced to do tactile exercises. Children use these materials in order to develop the sense of tactile. Fabric, wood, different grades of sandpaper, different types of paper, and ot
Post a Comment
Read more

Formal Table setting and chicken spread sandwich

Try to explain “formal setting of a table” and making a chicken spread sandwich”. Formal setting of a table:          Material: ·          Butter spreader ·          A fork, spoon, and knife ·          A drinking glass ·          Napkin ·          Butter plate ·          Salad plate Presentation: 1.       To present formal table setting, gather students around the table. 2.       Place things on their right places. 3.       Dinner plate should be place in the middle 4.       Put the knife on the right side of the dinner plate and fork and spoon on the left side. 5.       Salad plate should place next to fork. 6.       Place a glass for water at the top right side of dinner plate. 7.       Put the napkin on the dinner plate. 8.       Repeat all procedure one time more. 9.       Now ask students one by one to do as you did. Age Group: 3 ½ and onwards  Chicken spread sandwich:   Exercise: 1 1/2 to 2
2 comments
Read more