📊 Patterns and Data
Class 3 Maths · Unit 12 of 12 · about 120 minutes
Finds the rule in repeating and growing patterns of shapes and numbers and continues them; explores patterns in tables (odd/even, tens digit) and in letters and words; collects simple data with tally marks, shows it in a pictograph or simple bar chart, and answers questions from it. Ends with a mini project: a class survey.
What your child will learn
- Students will be able to identify the repeating unit in a shape or colour pattern and continue it, and create a repeating pattern of their own.
- Students will be able to find the rule of a growing number pattern (add or subtract a constant, skip counts) and give the next three terms.
- Students will be able to describe patterns in multiplication tables and in odd and even numbers.
- Students will be able to record counts with tally marks and read tally charts.
- Students will be able to make and read a pictograph or simple bar chart and answer most/least/how many more questions.
Lessons in this unit
- Repeating patterns: Find the part that repeats in shape, colour, sound and movement patterns, continue the pattern, and make one.
- Growing number patterns: Find the rule of a number pattern that grows or shrinks by the same amount, give the next three terms, find a missing term in the middle, and describe the rule in words.
- Patterns in tables, odd and even: Notice patterns in the ones digit of the 2s, 5s and 10s tables, sort numbers up to 999 into odd and even by the ones digit, and colour patterns on a hundred grid.
- Counting with tally marks: Record counts with tally marks in bundles of five, read tally charts, and collect simple class data (favourite fruit, ways of coming to school).
- Picture charts and bar charts: Turn a tally chart into a pictograph (one picture per child, then a key where one picture means 2) and a simple bar chart; read the chart to answer most, least, how many, and how many more questions; finish with a class survey project.
Key words
- pattern
- Something that repeats or grows in a way you can predict.
- rule
- What tells you how the pattern continues, like 'add 3' or 'red, blue, blue'.
- repeating pattern / growing pattern
- A pattern that comes back to the start, or one that gets bigger each time.
- tally marks
- Little lines to count things: four lines and a fifth across make 5.
- pictograph
- A chart that uses pictures to show how many.
- bar chart
- A chart with bars; taller bar means more.
Help your child at home
What to watch for
- Continue by copying the last item, not the unit.
- Help: Find the whole unit first (flower, leaf, leaf), then start it again.
- Continue by adding the last number, not the difference: 4, 7, 10, 13, 23.
- Help: Find the step: 7 − 4 = 3. Add 3 each time: 16, 19, 22.
- A number is even if it has an even hundreds or tens digit: 231 is even because of the 2.
- Help: Only the ones digit matters. 231 ends in 1, so it is odd; 346 ends in 6, so it is even.
- The crossing line is decoration, so a bundle is 4.
- Help: The line across is the 5th mark. One bundle = 5. Count 5, 10, 15, then the extras.
Try this at home
- 🌼🍃🍃 garland: name the unit flower, leaf, leaf, then start it again after the last leaf
- 4, 7, 10, 13 → rule add 3
- Pair up 7 shoes vs 8 shoes: 8 make 4 pairs, 7 leave one alone
- Write 12 in tally marks
Quick questions to ask aloud
- A garland goes flower, leaf, leaf, flower, leaf, leaf, flower, ?. What comes next? (leaf / flower / star)
Show answer
The repeating unit is flower, leaf, leaf. The last item is a flower, so a leaf comes next. - Continue the pattern: 4, 7, 10, 13, ____
Show answer
The step is 3 (7 − 4 = 3). 13 + 3 = 16. - Which number is even? (346 / 231 / 455)
Show answer
Look at the ones digit only. 346 ends in 6, so it is even.
Frequently asked questions
What will my child learn in "Patterns and Data" (Class 3 Maths)?
Your child will be able to: identify the repeating unit in a shape or colour pattern and continue it, and create a repeating pattern of their own.; find the rule of a growing number pattern (add or subtract a constant, skip counts) and give the next three terms.; describe patterns in multiplication tables and in odd and even numbers.; record counts with tally marks and read tally charts.; make and read a pictograph or simple bar chart and answer most/least/how many more questions..
How does MangoMindz teach "Patterns and Data"?
In 5 short parts (Repeating patterns, Growing number patterns, Patterns in tables, odd and even, Counting with tally marks, Picture charts and bar charts). Each part has a picture-based lesson read aloud by Mango Teacher, a quick check, and a quiz built from common mistakes children make, with Mango, a study buddy, for questions.
How long does "Patterns and Data" take?
About 120 minutes in total, spread over 5 parts of 15–25 minutes each.
How can I help my child with "Patterns and Data" at home?
Work through a small example together, such as: 🌼🍃🍃 garland: name the unit flower, leaf, leaf, then start it again after the last leaf; 4, 7, 10, 13 → rule add 3. Then ask a quick question aloud: A garland goes flower, leaf, leaf, flower, leaf, leaf, flower, ?. What comes next? (leaf / flower / star)
What mistakes do children often make in "Patterns and Data"?
Continue by copying the last item, not the unit. Fix: Find the whole unit first (flower, leaf, leaf), then start it again. Continue by adding the last number, not the difference: 4, 7, 10, 13, 23. Fix: Find the step: 7 − 4 = 3. Add 3 each time: 16, 19, 22. A number is even if it has an even hundreds or tens digit: 231 is even because of the 2. Fix: Only the ones digit matters. 231 ends in 1, so it is odd; 346 ends in 6, so it is even.
Is "Patterns and Data" free on MangoMindz?
Yes. Every lesson part and quiz in "Patterns and Data" is free on MangoMindz, with no ads.