TNSB - 7 - Maths :: Data Handling Term 1

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Go To: TNSB-Mathematics-Grade 7

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[Author - Kripa S]


Objective: To learn organization of data

Subtopics to be covered:

- Raw data, grouped data

- Collect and organize data

- Frequency chart, tally marks, range

Learning Outcome:

- Students can read data from a frequency chart and asnwer questions

- Students can tell range of a data with tally marks table


[Author - Kripa S]


https://www.youtube.com/watch?v=R6m8OQAQzPk (Tally marks, frequency - English)

https://www.youtube.com/watch?v=iwZJvh_7oqA (Data organization - English)


[Author - Kripa S]


1. Make a measuring scale on a wall till 180 cm. Measure the height of every student in your class on that scale.

Group students with same height. Make a table of length and number of students with same height (eg: 100 cm, 110 cm 120 cm…)

Find the range, mean and median of your class height.

2. Collect last week's attendance attendance from your class. Make a table of how many students were present on the 6 days. (Monday, Tuesday, .... ). Check what is the average attendance of the class for the week

Draw a bar chart if you can on the attendance


[Author - Gayathri Arun]

Term Transliterated Term Translated Term
Raw Data                                            ரா டாட்டா                                                சீர்படா தரவு
Grouped Data                                குரூப்பேட் டாட்டா                                        தொகுக்கப்பட்ட விவரம்
Variable                                            வெறியபிள்                                                மாறி
Frequency                                         பிரெக்வென்சி                                            நிகழ்வெண்
Range                                                     ரேஞ்                                                    நெடுக்கம், வீச்சு
Class Interval                              கிளாஸ் இன்டெர்வல்                                        வகுப்பு இடைவெளி
Frequency Table                            பிரீக்வென்சி டேபிள்                                      நிகழ்வுப் பட்டியல்
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