NCERT - 7 - Maths :: Data Handling
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[Author - Kripa S]
Objective: Explain how to organize data and draw graphs based on data inferred
Subtopics to be covered:
- Organize data in order, frequency, range of data
- Arithmetic mean and Median of data
- Bar graphs, Tally marks, Frequency table
Learning Outcome:
- Students can create a frequency table with tally marks for a given set of data
- Students can read a bar graph and decipher data portrayed
[Author - Kripa S]
http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0757-Ganit/Chap-3/index.html (NCERT Hindi Medium)
http://epathshala.nic.in/wp-content/doc/book/flipbook/Class%20VII/0756-Mathematics/Chapter%203/index.html (NCERT English Medium)
https://drive.google.com/open?id=0BzNF2YyqQxJ-V2ZGbGRHSGx3bzQ (JEPC Board) (Hindi Medium)
[Author - Rishi Mazumdar]
https://hi.khanacademy.org/math/in-math-by-grade/in-seventh-grade-math/seventh-data-handling
[Author - Kripa S]
http://uphins.com/wp-content/uploads/2015/08/DATA-copy.png (data organization and graphs)
http://www.math-only-math.com/images/tally-mark-table.jpg (tally marks)
http://www.learnersdictionary.com/media/ld/images/legacy_print_images/bar_graph.gif (bar graph)
[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 - Amitesh Kulshreshtha, Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-T2NMYnhScHZDakE
https://drive.google.com/open?id=0BzNF2YyqQxJ-VHIweG1USzh5RzQ (Answer key 1)
| Term' | Transliterated Term | Translated Term | |
| Data | डेटा | जानकारी | |
| Value | वैल्यू | मूल्य | |
| Average | एवरेज | औसत | |
| Mode | मोड | मोड | |
| Median | मीडियन | मंझला | |
| Graph | ग्राफ | लेखाचित्र | |
| Scale | स्केल | स्केल | |
| Purpose | पर्पस | उद्देश्य | |
| Chance | चांस | अवसर | |
| Probability | प्रोबबिलिटी | संभावना | |
| arithmetic mean | अरिथमेटिक मीन | अंकगणित औसत | |
| representative | रिप्रेजेन्टेटिव | प्रतिनिधि | |
| range | रेंज | सीमा | |
| median | मीडियन | मंझला | |
| analysis | एनालिसिस | विश्लेषण | |
| interpretation | इंटरप्रिटेशन | व्याख्या |
[Author - Amitesh Kulshreshtha, Reshav Dey]
https://drive.google.com/open?id=0BzNF2YyqQxJ-ck1XbXlFNGI3WDA
https://drive.google.com/open?id=0BzNF2YyqQxJ-Y0ZHcHh0T21IS3c (Worksheet 1)
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