Patterns in Mathematics Class 6 (Ganita Prakash)
Master Patterns in Mathematics Class 6 (Ganita Prakash) with comprehensive NCERT Solutions, Practice Questions, MCQs, Sample Papers, Case Based Questions, and Video lessons.
NCERT Solutions
Patterns in Mathematics Class 6 (Ganita Prakash) – NCERT Solutions
Each question below opens its complete step-by-step Teachoo solution.
What is Mathematics?
2 questionsQuestion 1
Can you think of other examples where mathematics helps us in our everyday lives? We use math every single day - in our routine activities. For example –
View solutionQuestion 2
How has mathematics helped propel humanity forward? (You might think of examples involvling: carrying out scientific experiments; running our economy and democracy; building bridges, houses or other complex structures; making TVs, mobile phones, computers, bicycles, trains, cars, planes, calendars, clocks, etc.)
View solutionPatterns in Numbers
2 questionsQuestion 1
Can you recognise the pattern in each of the sequences in Table 1?1, 1, 1, 1, 1, 1, 1, ...
1, 2, 3, 4, 5, 6, 7, ...
1, 3, 5, 7, 9, 11, 13, ...
2, 4, 6, 8, 10, 12, 14, ...
1, 3, 6, 10, 15, 21, 28, ...
1, 4, 9, 16, 25, 36, 49, ...
1, 8, 27, 64, 125, 216, ...
1, 2, 3, 5, 8, 13, 21, ...
1, 2, 4, 8, 16, 32, 64, ...
1, 3, 9, 27, 81, 243, 729, ...
Sequence: 1, 1, 1, 1, 1, 1, ...
Pattern: Every number is just 1.
Therefore, pattern is All 1’s
2. Sequence: 1, 2, 3, 4, 5, 6, ...
Pattern: We add by 1 each time.
Therefore, pattern is Counting numbers
Question 2
Rewrite each sequence of Table 1 in your notebook, along with the next three numbers in each sequence! After each sequence, write in your own words what is the rule for forming the numbers in the sequence.1, 1, 1, 1, 1, 1, 1, ...
1, 2, 3, 4, 5, 6, 7, ...
1, 3, 5, 7, 9, 11, 13, ...
2, 4, 6, 8, 10, 12, 14, ...
1, 3, 6, 10, 15, 21, 28, ...
1, 4, 9, 16, 25, 36, 49, ...
1, 8, 27, 64, 125, 216, ...
1, 2, 3, 5, 8, 13, 21, ...
1, 2, 4, 8, 16, 32, 64, ...
1, 3, 9, 27, 81, 243, 729, ...
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...
1, 2, 3, 4, 5, 6, 7, 8, 9, 10,...
1, 3, 5, 7, 9, 11, 13, 15, 17, 19, ...
2, 4, 6, 8, 10, 12, 14, 16, 18, 20,...
1, 3, 6, 10, 15, 21, 28, 36, 45, 55,...
1, 4, 9, 16, 25, 36, 49, 64, 81, 100,...
1, 8, 27, 64, 125, 216, 343, 512, 729...
1, 2, 3, 5, 8, 13, 21, 34, 55, 89 ...
1, 2, 4, 8, 16, 32, 64, 128, 256, 512...
1, 3, 9, 27, 81, 243, 729, 2187,6561, 19683...
Sequence: 1, 1, 1, 1, 1, 1, ...
Pattern: Every number is just 1.
Next 3 numbers are
1,
1,
1
Visualising Number Sequences
5 questionsQuestion 1
Copy the pictorial representations of the number sequences in Table 2 in your notebook, and draw the next picture for each sequence! Let’s do one by one
View solutionQuestion 2
Why are 1, 3, 6, 10, 15, … called triangular numbers? Why are 1, 4, 9, 16, 25, … called square numbers or squares? Why are 1, 8, 27, 64, 125, … called cubes?1, 3, 6, 10, 15, … are called Triangular Numbers
Because: if we arrange dots in a triangle, these are numbers we get.
For example:
1 dot makes a triangle.
3 dots can make a triangle with two on the base.
6 dots make a triangle with 3 on the base.
These numbers form triangle shapes.
Question 3
You will have noticed that 36 is both a triangular number and a square number! That is, 36 dots can be arranged perfectly both in a triangle and in a square. Make pictures in your notebook illustrating this! This shows that the same number can be represented differently, and play different roles, depending on the context. Try representing some other numbers pictorially in different ways!36 as square and triangle number
As square
36.
Hexagonal Numbers
What would you call the following sequence of numbers? That’s right, they are called hexagonal numbers! Draw these in your notebook. What is the next number in the sequence? The sequence:
1, 7, 19, 37, …
They are called hexagonal numbers because you can arrange dots in a hexagon shape
Question 5
Can you think of pictorial ways to visualise the sequence of Powers of 2? Powers of 3?Visualizing powers of 2:
View solutionRelations among Number Sequences
9 questionsQuestion 1
Can you find a similar pictorial explanation for why adding counting numbers up and down, i.e., 1, 1 + 2 + 1, 1 + 2 + 3 + 2 + 1, …, gives square numbers?So, our sequence is like
View solutionQuestion 2
By imagining a large version of your picture, or drawing it partially, as needed, can you see what will be the value of 1 + 2 + 3 + ... + 99 + 100 + 99 + ... + 3 + 2 + 1?From our sequence, we notice that
1 = 1
1 + 2 + 1 = 4 = 22
1 + 2 + 3 + 2 + 1 = 9 = 32
1 + 2 + 3 + 4 + 3 + 2 + 1 = 16 = 42
1 + 2 + 3 + 4 + 5 + 4 + 3 + 2 + 1 = 25 = 52
1 + 2 + 3 + 4 + 5 + 6 + 5 + 4 + 3 + 2 + 1 = 36 = 62
Question 3
Which sequence do you get when you start to add the All 1’s sequence up? What sequence do you get when you add the All 1’s sequence up and down?The All 1’s sequence is: 1, 1, 1, 1, 1, ...
When we add up the All 1’s sequence, we get:
1
1 + 1 = 2
1 + 1 + 1 = 3
1 + 1 + 1 + 1 = 4
1 + 1 + 1 + 1 + 1 = 5
...and so on.
Question 4
Which sequence do you get when you start to add the counting numbers up? Can you give a smaller pictorial explanation?The counting numbers are: 1, 2, 3, 4, 5, ...
View solutionQuestion 5
What happens when you add up pairs of consecutive triangular numbers? That is, take 1 + 3, 3 + 6, 6 + 10, 10 + 15, … Which sequence do you get? Why? Can you explain it with a picture?The Triangular Numbers sequence: 1, 3, 6, 10, 15, 21, …
We are adding pairs of consecutive triangular numbers:
1 + 3 = 4
3 + 6 = 9
6 + 10 = 16
10 + 15 = 25
15 + 21 = 36
This gives the Square Numbers sequence: 4, 9, 16, 25, 36, ...
→ which are 2², 3², 4², 5², 6², ...
Question 6
What happens when you start to add up powers of 2 starting with 1, i.e., take 1, 1 + 2, 1 + 2 + 4, 1 + 2 + 4 + 8, … ? Now add 1 to each of these numbers-what numbers do you get? Why does this happen?Let’s add powers of 2
Why does this happen?
This is a famous pattern in mathematics
1 + 2 + 23 + 24 + …. 2n = 2n+1 – 1
Question 7
What happens when you multiply the triangular numbers by 6 and add 1? Which sequence do you get? Can you explain it with a picture?The Triangular Numbers sequence: 1, 3, 6, 10, 15, 21, …
We have to multiply these numbers by 6, and then add 1
Thus, we get the sequence:
7, 19, 37, 61, 91, 127, …
This sequence is called the Centered Hexagonal Number
Centered Hexagonal Number
In this sequence,
Center number is denoted by dots
And it is surrounded by hexagonal numbers
Question 8
What happens when you start to add up hexagonal numbers, i.e., take 1, 1 + 7, 1 + 7 + 19, 1 + 7 + 19 + 37, … ? Which sequence do you get? Can you explain it using a picture of a cube?Hexagonal numbers are 1, 7, 19, 37, 61, ...
View solutionQuestion 9
Find your own patterns or relations in and among the sequences in Table 1. Can you explain why they happen with a picture or otherwise? 1, 1, 1, 1, 1, 1, 1, ...
1, 2, 3, 4, 5, 6, 7, ...
1, 3, 5, 7, 9, 11, 13, ...
2, 4, 6, 8, 10, 12, 14, ...
1, 3, 6, 10, 15, 21, 28, ...
1, 4, 9, 16, 25, 36, 49, ...
1, 8, 27, 64, 125, 216, ...
1, 2, 3, 5, 8, 13, 21, ...
1, 2, 4, 8, 16, 32, 64, ...
1, 3, 9, 27, 81, 243, 729, ...
(All 1’s)
(Counting numbers)
(Odd numbers)
(Even numbers)
(Triangular numbers)
(Squares)
(Cubes)
(Virahānka numbers)
(Powers of 2)
(Powers of 3)
Patterns in Shapes
2 questionsQuestion 1
Can you recognise the pattern in each of the sequences in Table 3?Let’s try one by one
1. Regular Polygons
Question 2
Try and redraw each sequence in Table 3 in your notebook. Can you draw the next shape in each sequence? Why or why not? After each sequence, describe in your own words what is the rule or pattern for forming the shapes in the sequence.Let’s do one by one
1. Regular Polygons
Relation of Shape Sequences to Number Sequences
5 questionsQuestion 1
Count the number of sides in each shape in the sequence of Regular Polygons. Which number sequence do you get? What about the number of corners in each shape in the sequence of Regular Polygons? Do you get the same number sequence? Can you explain why this happens?Number of sides in Regular Polygons follows pattern
3, 4, 5, 6, 7, 8, 9, 10,…
Question 2
Count the number of lines in each shape in the sequence of Complete Graphs. Which number sequence do you get? Can you explain why?Number of Lines in Complete Graphs:
Number of lines are
1,
3,
6,
10,
15
Question 3
How many little squares are there in each shape of the sequence of Stacked Squares? Which number sequence does this give? Can you explain why?
View solutionQuestion 4
How many little triangles are there in each shape of the sequence of Stacked Triangles? Which number sequence does this give? Can you explain why? (Hint: In each shape in the sequence, how many triangles are there in each row?)Number of Little Triangles in Each Shape:
1st shape: 1 triangle
2nd shape: 1 (top row) + 3 (bottom row) = 4 triangles
3rd shape: 1 + 3 + 5 = 9 triangles
4th shape: 1 + 3 + 5 + 7 = 16 triangles
5th shape: 1 + 3 + 5 + 7 + 9 = 25 triangles
This forms the sequence: 1, 4, 9, 16, 25, 36, ...
Which is square number sequence
Question 5
To get from one shape to the next shape in the Koch Snowflake sequence, one replaces each line segment ‘-’ by a ‘speed bump’ . As one does this more and more times, the changes become tinier and tinier with very very small line segments. How many total line segments are there in each shape of the Koch Snowflake? What is the corresponding number sequence? (The answer is 3, 12, 48, ..., i.e., 3 times Powers of 4; this sequence is not shown in Table 1.)
View solutionWhy Learn This With Teachoo?
Learn Patterns in Mathematics Class 6 with clear explanations, visual examples, NCERT solutions and practice resources on Teachoo. This is Chapter 1 of the current NCERT Ganita Prakash Class 6 Mathematics book.
The central idea of the chapter is simple: mathematics is not only about performing calculations. It is also about finding, describing and explaining patterns. A pattern is a rule or arrangement that repeats or develops in a predictable way. Once students identify the rule behind a pattern, they can work out what comes next and explain why it comes next.
Patterns occur in number sequences, shapes, games, calendars, nature, art and architecture. The arrangement of petals in flowers, the growth of a tiled design and the sequence of odd numbers are all examples of mathematical patterns. Chapter 1 helps students move from merely noticing these arrangements to describing them mathematically.
What Is Covered in Patterns in Mathematics?
The chapter is divided into six connected areas:
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What Is Mathematics? — Understand mathematics as the study of patterns, relationships, quantities, shapes and logical ideas. Students learn that mathematical thinking includes observation, experimentation and explanation.
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Patterns in Numbers — Explore sequences such as counting numbers, odd numbers, even numbers, triangular numbers, square numbers and cube numbers. Students examine how a sequence grows and identify the operation or rule connecting its terms.
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Visualising Number Sequences — Represent number patterns using dots and geometrical arrangements. A triangular number can be displayed as dots forming a triangle, while a square number can be displayed as an equal number of rows and columns. These visual models show why the sequences have their names.
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Relations Among Number Sequences — Discover connections between different sequences. For example, adding consecutive odd numbers creates square numbers. These relationships help students understand that number patterns are not isolated lists; they are connected structures.
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Patterns in Shapes — Investigate growing arrangements made from triangles, squares, polygons and stacked figures. The chapter also introduces more unusual visual patterns, including the Koch snowflake.
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Relation of Shape Sequences to Number Sequences — Translate a growing shape into a list of numbers by counting dots, sides, blocks or other elements. Students learn how a picture can represent a numerical rule.
What Students Learn from This Chapter
After studying Patterns in Mathematics, students should be able to:
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Recognise a pattern in a sequence of numbers or shapes.
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State the rule used to generate a pattern.
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Continue a sequence by applying its rule.
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Represent number sequences through dot diagrams.
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Identify triangular, square and cube numbers.
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Compare two sequences and describe their relationship.
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Convert a visual pattern into a number sequence.
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Explain a conclusion instead of giving only the next term.
The final point matters. If a sequence begins 1, 4, 9, 16, it is not enough to say that the next term is 25. A strong answer explains that the terms are consecutive square numbers: (1^2, 2^2, 3^2, 4^2), so the next term is (5^2=25).
How Teachoo Helps with Chapter 1
Teachoo divides Patterns in Mathematics into small, connected topics. Students can learn what a pattern means, examine number sequences, visualise them through diagrams and then study the relationship between numerical and geometrical patterns.
The chapter page is useful for:
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Learning the chapter for the first time.
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Revising the main number and shape sequences.
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Understanding a pattern that appears confusing in the textbook.
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Finding Class 6 Ganita Prakash Chapter 1 solutions.
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Practising pattern-recognition and reasoning questions.
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Preparing for school tests and competency-based assessments.
How to Study Patterns in Mathematics
Use this process for every pattern:
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Write the terms or draw the shapes clearly.
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Compare one term with the next.
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Look for changes in number, position, size or direction.
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Test the possible rule on every given term.
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Use the rule to produce the next term.
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Explain the rule in words.
Do not guess a rule from only one change. Several different rules can sometimes produce the same first few terms. A good mathematical rule must fit all the information given in the question.
Why Is This Chapter Important?
Pattern recognition supports almost every later area of mathematics. Multiplication tables, algebra, arithmetic progressions, geometry and graphs all depend on observing relationships. Chapter 1 develops the habit of asking: “What is changing, what remains the same and what rule connects the two?”
That habit is more valuable than memorising a list of sequences. It teaches students to investigate, generalise and justify—the core skills behind mathematical problem-solving.
Deeper reasoning and concept connections
A student has understood Patterns in Mathematics only when the idea can be moved between words, diagrams, examples and mathematical notation. Start with a concrete example, identify what changes and what remains fixed, represent the relationship clearly and then state the rule. This movement between representations is important because school and competency questions often present a familiar idea in an unfamiliar form.
The chapter should also be connected to earlier and later mathematics. Definitions supply the language, worked examples reveal the method, and mixed questions test whether the method can be selected without a hint. Instead of memorising the appearance of a solved question, ask what information triggered the method, which condition made it valid and how the answer could be checked. That makes learning transferable to later chapters rather than limited to one exercise.
How to solve unfamiliar and competency-based questions
Read the complete problem before calculating. Underline the quantities, conditions and command word—find, compare, construct, justify, estimate or prove. Rephrase the task in one sentence and choose a representation such as a table, labelled figure, number line, expression or graph. Solve in small steps, keeping units and labels visible.
For an application question, the final line must answer the situation, not only display a number. For an assertion–reason question, test the assertion and reason separately before deciding whether one explains the other. For an MCQ, eliminate options using definitions, signs, size estimates or boundary cases before performing long calculations. If the answer is visual, check it against the stated scale or construction conditions rather than the appearance of the drawing.
What complete mastery looks like
For Patterns in Mathematics, a student should be able to define the central ideas in simple language, recognise them in different representations, solve routine questions accurately and explain the method used. They should also be able to correct a flawed solution, create an example satisfying given conditions and combine two ideas from the chapter in one problem. A reliable mastery test is to solve one direct question, one application question and one reasoning question without looking at notes, then explain all three aloud or in writing.
Keep a compact error log with four labels: concept, interpretation, calculation and presentation. Reattempt each error after a gap instead of rereading the answer immediately. Improvement comes from correcting the decision that caused the mistake, not from repeating questions whose method is already known.
Additional frequently asked questions
What should a student know before starting Patterns in Mathematics?
Revise the definitions, number operations, diagrams or notation used at the beginning of the chapter. The prerequisite list should be short: if an earlier skill blocks progress, repair that skill with two or three focused questions and return to the chapter.
How can a student check an answer in Patterns in Mathematics?
Use an independent check whenever possible: substitute the result, reverse the operation, estimate its size, compare it with the figure, test a simpler case or solve using another representation. A check should examine the mathematical condition, not merely repeat the same arithmetic.
How many questions are enough for strong preparation?
There is no fixed number. Stop counting questions and track coverage: every concept, every standard method, at least one mixed problem, one competency-based problem and every previously incorrect type should be solved independently. Ten varied, analysed questions are more valuable than fifty copied solutions.
How should Teachoo solutions be used without becoming dependent on them?
Attempt the question first and mark the exact step where progress stops. Read only enough of the solution to repair that step, close it and restart the question. Finally, solve a similar problem without help. This turns a solution into feedback rather than a substitute for thinking.
Frequently Asked Questions
What is Patterns in Mathematics in Class 6?
It is Chapter 1 of Ganita Prakash Class 6. It introduces patterns in numbers and shapes, visual representations of sequences and relationships between different patterns.
What are triangular and square numbers?
Triangular numbers can be represented by dots arranged as triangles, such as 1, 3, 6 and 10. Square numbers can be arranged in equal rows and columns, such as 1, 4, 9 and 16.
Does Teachoo provide Class 6 Chapter 1 NCERT solutions?
Teachoo provides topic-wise explanations and chapter resources for the Ganita Prakash questions covered on the page.
How can students become better at pattern questions?
They should write or draw each term, compare consecutive terms, test the rule against every example and explain why the rule works.
Open a Chapter 1 topic and begin with the pattern itself. Observe first, test the rule and only then check the explanation.