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4th Standard Maths Term 2 Unit 1 Geometry : Iterative Patterns

4 ஆம் வகுப்பு கணக்கு : பருவம் 2 அலகு 1 : வடிவியல்
முப்பரிமாண மற்றும் இருபரிமாண துருவங்களுக்கு இடையே உள்ள வேறுபாடு

இயல் 1: வடிவியல்

4th Maths Term 2 Unit 1 Intro

முப்பரிமாண மற்றும் இருபரிமாண துருவங்களுக்கு இடையே உள்ள வேறுபாடு

Shapes difference
வடிவங்களில் மீள் அமைப்புகள் Patterns in nature

நாம் மரங்கள், ஆறுகள், மலைகள், ஓடுகள், மேகங்கள், இலைகள் மற்றும் பலவற்றில் அமைப்பைக் காண்கிறோம். மறுசெய்கை என்பது ஒரு செயல் முறையின் தொடர்ச்சியான பயன்பாடு ஆகும். மீள் அமைப்புகளை உருவாக்க வடிவங்களை எவ்வாறு பயன்படுத்துகிறோம் என்பதை இங்கே பார்க்கப் போகிறோம்.

1. வட்டங்கள், சுருள்கள், நீள்வட்டங்கள் ஆகியவற்றை வரைதல்

நீங்கள் முன் வகுப்பிலேயே வட்டம் வரைய கற்றுக் கொண்டீர்கள்.

Drawing circles செயல்பாடு

மேலே உள்ள வடிவங்களை வரைந்து வண்ணம் தீட்டுக.

மேலே உள்ள வடிவங்களைப் பயன்படுத்தி மீள் அமைப்புகளை உருவாக்கப் போகிறோம்.

எடுத்துக்காட்டுகள் Examples of patterns
செயல்பாடு

தேவையான பொருட்கள்: காகிதம், கரிக்கோல் (Pencil), பயன்படுத்தப்படாத பாட்டில் மூடி, செலோடேப்.

ஒரு காகிதத்தை எடுத்துக் கொண்டு, அதில் செலோடேப்பை வைக்கவும். பாட்டில் மூடியில் 2 (அ) மூன்று துளைகள் போடவும். பாட்டில் மூடியை செலோடேப்பினுள் வைக்கவும். அதில் கரிக்கோலை சொருகவும். செலோடேப்பை அழுத்தமாக பிடிக்கவும். செலோடேப்பினுள் கரிக்கோலை இங்குமங்குமாக இழுத்துஸ்பைரோகிராப் வரையவும். நமக்கு ஸ்பைரோகிராப் கிடைக்கப் பெற்றது.

Spirograph activity

ஆசிரியர் குறிப்பு: ஆசிரியர் மாணவர்களை செலோடேப்பிற்கு பதிலாக வளையலை பயன்படுத்துமாறு ஊக்குவித்தல்.

இவற்றை முயல்க.

கொடுக்கப்பட்ட வடிவங்களைக் கொண்டு அமைப்புகளை நிறைவு செய்க மற்றும் அதற்கு உன் விருப்பத்திற்கேற்ற வண்ணம் தீட்டுக.

Try this pattern
2. வரைந்த வடிவங்களை ஒப்பிடுதல் மற்றும் வேறுபடுத்துதல்.

மாணவர்களே வட்டங்கள், சுருள்கள் மற்றும் நீள் வட்டங்கள் போன்ற வடிவங்களைப் பயன்படுத்தி தங்களுக்கு பிடித்த அமைப்புகளை தயார் செய்து. அதனை உங்கள் நண்பர்களுடன் கலந்துரையாடவும்.

Shapes comparison
3. சூழ்நிலையில் பார்க்கும் மீள் அமைப்புகளில் எடுத்துக்காட்டுகளை ஆராய்ந்து வெளிப்படுத்துதல்

கீழே கொடுக்கப்பட்டுள்ள எடுத்துக்காட்டுகளை உற்றுநோக்கவும்.

Cactus Pattern

சப்பாத்திக் கள்ளி நீள்வட்ட வடிவ அமைப்பிற்கு எடுத்துக்காட்டு ஆகும்.

Snail Shell Pattern

ஒரு நத்தையின் ஓடு சுருள் வடிவ அமைப்பிற்கு எடுத்துக்காட்டு ஆகும்.

Bangle Pattern

வளையல் வட்ட வடிவ அமைப்பைக் குறிக்கிறது.

உங்கள் சுற்றுப்புறத்தில் உள்ள மீள் அமைப்புகளுக்கான எடுத்துக்காட்டுகள் சில கீழே கொடுக்கப்பட்டன.

Pattern creation

சுற்றுப்புற சூழலில் உள்ள அமைப்புகளை உற்று நோக்கவும். கோலங்களை பூக்களின் இதழ்கள் மற்றும் மரங்களில் இருந்து விழுந்த இலைகளைப் பயன்படுத்தி உங்களுடைய படைப்புத்திறனைப் பயன்படுத்தி வண்ணங்களால் நிரப்புக. வட்டங்கள், சுருள்கள் மற்றும் நீள்வட்டங்களை சார்ட் அல்லது வண்ணக்காகிதம் அல்லது நூல்களைப் பயன்படுத்தி ஸ்பைரோகிராப் அமைப்புகள் உருவாக்கபடுகின்றன. இவ்வமைப்புகளை வண்ணங்கள் கொண்டும் அமைக்கலாம்

Understanding Time: A Guide to the Times of a Day | 3rd Maths Term 3 Unit 6

Chapter: 3rd Maths : Term 3 Unit 6 : Time

Times of a Day

UNIT − 6: TIME

Header for Unit 6: Time

Times of a Day

Look at the sky. Is it same all the time?

Sometimes the sun shines and sometimes the moon and the stars twinkle.

When the sun shines we call it day and when the moon and the stars twinkle we call it night.

12 hours of day time (sunlight) and 12 hours of night time (Darkness) comprises one day (24 hours).

Illustration showing Day (Sun) and Night (Moon)

1. Sort the events according to the time of happening

1. Sun rise

2. Sun set

3. Coming to school

4. Returning home from school

5. Breakfast

6. Dinner

7. Darkness outside

8. Say Good Morning

9. Say Good Evening

Table to sort activities into Morning/Afternoon and Evening/Night

Mastering Measurement: Standard Tools and Units for 3rd Grade Maths

Measurements: Term 3 Unit 4

A lesson on measurement by standard tools for 3rd Grade Maths.

Measurement by standard tools

Meena & her mother

Mother : Meena! Pour one tumbler of water into the flour.

Meena : Ok, ma!

Mother : The batter is so thick. Did you pour one full tumbler of water?

Meena : Yes, ma!

Mother : Which tumbler did you use?

Meena : Ma, I used the small tumbler.

Mother : You have to use a bigger one.

Meena : Okay ma.

Mother : Meena! Now bring me 2 tumblers of water to pour in this milk.

Meena : Ma, I have brought water in big tumbler

Mother : Meena, now you should have brought water in the small tumbler.

Meena : Ma, Sometimes you ask me to bring water in big tumbler and sometimes small tumbler. I don't know when to bring in big tumbler and when to bring in small tumbler.

The Problem

Two different sized tumblers

What shall we do to find a solution for this issue?

We need a standard tool to measure capacities of containers. We also need a standard unit to express capacities of containers.

Standard Tools for Measurement

These are some Standard tools to measure capacity. You can find them in milk shops, grocery shops, etc., We measure liquids such as water, oil, milk, petrol., using these tools.

Standard measuring tools for liquids

Standard units for measuring capacity of a container is litre.

* We measure liquids smaller containers using millilitres.

* We measure the liquids of more quantity /capacity of bigger containers using litres.

Activity

1. Teacher can conduct the game, fill in the bottle.

2. Teacher can conduct a mock milk shop in the class.

Exercise 1: Classifying Vessels

1. Complete the table classifying these under the given table.

Various containers: pot, tumbler, water can, medicine bottle, oil can, water pot.
Table to classify vessels into less than 1 litre and more than 1 litre.

Answers

Less than 1 litre vessel

1. Medicine bottle

2. Tumbler

3. Water pot

More than 1 litre vessel

1. Pot

2. Oil can

3. Water can

Exercise 2: Tick the Unit

2. Tick the appropriate unit to measure the given liquid.

Exercise asking to tick ml or l for oil can, water tank, and eye drops.

Exercise 3 & 4: Biggest and Smallest Units

3. Tick / underline the biggest unit

i. a) 500 ml b) 100 ml c) 50 ml d) 75 ml

ii. a) 200 ml b) 300 ml c) 150 ml d) 175 ml

iii. a) 5 l b) 2 l c) 8 l d) 7 l

iv. a) 3 l b) 300 ml c) 30 ml d) 30 l

v. a) 250 ml b) 1500 ml c) 760 ml d) 75 l


4. Circle/ underline the smallest unit

i. a) 250 ml b) 350 ml c) 50 ml d) 750 ml

ii. a) 300 ml b) 350 ml c) 800 ml d) 275 ml

iii. a) 10 l b) 3 l c) 9 l d) 6 l

iv. a) 3 l b)350ml c) 5 ml d) 40 l

v.a) 2500 ml b) 100 ml c) 810 ml d) 175 l

Exercise 5: Daily Water Usage

5. How many litres of water do you use for the following purpose in your house? Complete the table.

Table for estimating water usage for bathing, drinking, cooking, washing vessels, and washing clothes.

Exercise 6: Measuring Containers

6. How many litres are needed for filing the given containers. Complete the table by measuring the containers by one litre bottle.

Table to fill capacity of bottle, bucket, and pot using 1 litre bottles.

Answers

Bottle 1 1 litre bottles

Bucket 20 1 litre bottles

Pot 40 1 litre bottles

Activity

Take a 1 litre bottle and a tumbler fill the bottle using it.

How many times did you use the tumbler for filling the bottle ?

4 times


Repeat the same activity using different containers (Cups, tumblers, bottles ) and record you findings.

1. Which container was used twice?

Cups

2. Which container was used four times?

Tumblers

Exploring Iterative Patterns and Processes in Mathematics | Class 3 Term 3 Unit 3

3rd Maths : Term 3 Unit 3 : Patterns

Iterative patterns and processes

UNIT − 3 PATTERNS

Unit 3: Patterns Title Image

Iterative patterns and processes

Introduction

Rangoli is created by the growing patterns of colours and shapes. These are few rangolis exhibiting such patterns.

Examples of Rangoli patterns

1. Continue the pattern to complete the rangoli.

Incomplete Rangoli pattern for completion exercise - Part 1
Incomplete Rangoli pattern for completion exercise - Part 2

2. Make a pattern of your own on the given category and draw a rangoli.

a. Triangle and circles

b. Square and triangle

Grid for drawing custom Rangoli patterns with triangles, circles, and squares.

Pulli kolams

Pulli kolams are created by drawing straight lines and curved lines along the pulli (dots)

Examples of Pulli Kolams created with dots

These pulli kolams can be extended to any area by repeating and continuing the patterns of straight lines and curves

3. Draw a pullikolams by looking at the reference image without lifting your hand.

Exercise: Draw a pulli kolam based on a reference image.

4. Draw 2 pullikolams of your choice along the given dots.

Dot grid for drawing two custom pulli kolams.

Understanding the Need for Standard Measurement | 3rd Grade Maths

3rd Maths: Term 1 Unit 4: Measurements

Chapter 4: Measurements

Need for standard Measurement

Teacher’s note: Teacher can facilitate the children to understand the need for standard measurements.

Activity 1

Ragu measured the length of his class table using the non−standard measurements and tabulated them as follows. complete the following table by measuring the length of your class table along with your friends by measuring the length of your class table.

Table for measuring class table length with hand span, cubit, and foot span.

Activity 2

Measure the length of a ribbon by your hand span.

Illustration of measuring with a hand span.

Friend 1 −______________ hands pan

Friend 2 −______________ hands pan

Friend 3 −______________ hands pan

Friend 4 −______________ hands pan

Measurements made using non standard units differ from person to person.

Can you guess the reason for their different answers?

Activity 3

Form a group of 5 members and measure the length of the blackboard in you classroom using the following tools and tabulate it.

Notebook and a ruler

Table for measuring blackboard length with a notebook and ruler.

Observe the measurements and discuss

Did you note that all the measurements made by Kala and her friends are same?

MEASUREMENT OF LENGTH

Measuring the length of objects around us using simple tools.

Comparison of Non-Standard and Standard Units of Measurement.

NON − STANDARD UNITS

(i) Finger width

(ii) Hand span

(iii) Cubit

(iv) Pace

(v) Foot span.

( Measurement varies from person to person )

STANDARD UNITS

(i) Millimeter

(ii) Centimeter

(iii) Meter

(iv) Kilometer

( Measurement remains the same. )

Teacher’s note: Teacher can facilitate the children to understand the need for standard measurements.

Creating Patterns from Straight Lines | 3rd Maths Term 1 Chapter 3

3rd Maths : Term 1 Unit 3 : Patterns

Patterns | Term 1 Chapter 3 | 3rd Maths

Creating pattern from straight lines

Example :

The following images shows some examples of patterns in straight lines.

Examples of patterns in straight lines

Example :

Observe and extend the line patterns in the given boxes.

Extending line patterns exercise

Practice

Continue the Straight−line patterns.

Practice sheet for straight-line patterns

Numbers: Recall Exercises for Grade 1 Maths | Term 2 Chapter 2

1st Maths: Term 2 Unit 2: Numbers

Recall

Keywords: Numbers, Before, After, Between

Observe the Picture

Observe the picture.

A vibrant park scene showing a sun, butterflies, birds, trees, flowers, and children playing.

Let's Practice!

1. Count the following objects from the above picture and write their count.

Exercise showing objects to count: sun (1), butterflies (3), birds (5), trees (2), flowers (9), children (6).

2. Circle the numbers given below, that are found to be left in the above count.

A list of numbers from 1 to 9 and 0 for an identification exercise.

1 2 3 4 5 6 7 8 9 0

3. Colour the same numbers with the same colour. One is done for you.

An exercise for matching and coloring identical numbers, with the number 3 already colored as an example.

1st Grade Maths: Geometry Comparisons (Term 1, Unit 1)

1st Maths : Term 1 Unit 1 : Geometry - Comparisons

Keywords

Top – Bottom, Inside – Outside, On – Under, Above – Below, Far – Near, Big – Small

Travel through

Illustration of a classroom

Sit sit sit

sit inside the class;

Illustration of children jumping

Jump jump jump

jump on the floor;

Illustration of a child crawling

Crawl crawl crawl

crawl under the table;

Illustration of children moving away from a table

Go go go

go far from the table;

Illustration of a child near a blackboard

Come come come

come near the board;

Illustration of children playing outside

Play play play

play outside the class.

Teacher's note: Teacher can create a rhyme using other spatial vocabulary such as Top-Bottom, Above-Below and Big-Small.

Top - Bottom

Learn

A stack of books showing a blue book on top and a red book on the bottom.

The blue colour book is at the top.

The red colour book is at the bottom.

Practice

Tick (✓) the boy at the bottom of the slide.

A boy at the top of a slide and another at the bottom.

Tick (✓) the pot at the top.

A stack of three pots.

Try this

How will you arrange these items inside the bag? Why?

A shopping bag with eggs, onions, and a coconut to be placed inside.

Egg in Top. Onion in Middle. Coconut in bottom.

Inside - Outside

Learn

A papaya with seeds inside and a cashew with its nut outside.

Papaya has its seeds inside.

Cashew has its nut outside.

Practice

Tick (✓) the dog inside the kennel. Circle the sparrow outside the nest.

A dog inside a kennel and a sparrow outside a nest.

Try this

Where will you play these games? Why?

A football game and a carrom board game.

I play foot ball game Out side at ground.

This game needs space to kick the ball and this is a physical game.

I play carrom game inside hall/room.

Carrom is Mental Ability Game and its board is too small. So we are plays the carom inside.

On - Under

Learn

Illustration from the story of the Monkey and the Cap Seller.

Teacher's note: Teacher narrates the story of 'Monkey and the Cap seller' for enhancing the spatial vocabulary, on - under.

Practice

Circle the toy seen under the table.

A teddy bear on a table and a toy car under the table.

Circle the ball lying on the bed.

A ball on a bed and a doll under the bed.

Pleasure time

Colour the train moving on the bridge with brown and the boat moving under the bridge with red.

A coloring page showing a train on a bridge and a boat under it.

Above - Below

Learn

A diagram of a face showing eyes above the nose and mouth below the nose.

Eyes are above the nose.

The mouth is below the nose.

Practice

Circle the bird flying below the tree.

A monkey on a tree and a bird flying below it.

Circle the clock seen above the calendar.

A wall with a clock hanging above a calendar.

Pleasure time

Colour the flying aeroplane above the clouds with red and the kite below the clouds with orange.

A coloring page showing an airplane above clouds and a kite below clouds.

Far – Near

Learn

A bus near a bus stop and a car far from it.

The bus is near the bus stop. The car is far from the bus stop.

Practice

Colour the T-shirt of the boy who is near the ball.

Two boys, one near a football and one far.

Circle the cat which is far from the bowl.

Two cats, one near a bowl of milk and one far.

Try this

Who will win the race? Why?

A tortoise near a finish line and a rabbit far from it.

Tortoise will win the race Because of that is near the winning line

Big - Small

Learn

A big shark and a small zebra fish.

The shark is big. The zebra fish is small.

Practice

Tick (✓) the bigger one.

A large hippopotamus and a small dog.

Tick (✓) the smaller fruit.

A large watermelon and a small mango.

Pleasure time

Colour the big cake with brown and the small cake with blue.

A coloring page with a big cake and a small cake.