Question 15 of 15intermediate✨ CreateShort Answer5 marks

Small group project: Make a group of 3–4 members. Do at least one of the following: (i) Track daily sleep time of all your family members for a week. Daily sleep time includes night sleep, naps, and any sleep during the day. (a) Represent this on strips. (b) Put together the data of all your group members. Calculate the average and median sleep time of children, adults, elderly. (c) Share your findings and observations. (ii) When do schools start and end? On a weekday, Manoj's school starts at 9:30 am and ends at 4:30 pm, i.e., 7 hours which include class time and breaks. Collect information on the daily timings of different schools for Grade 8, including class time and break time (the schools can be anywhere in the country. You can ask your neighbours, relatives, parents and friends to find out). Analyse and present the data collected.

Correct Answer

(i) Sleep Time Project:

(a) Visual Representation: Students track family sleep times for a week and create visual strips.

(b) Data Analysis: Students combine data from all group members and calculate average and median sleep time for:

  • Children
  • Adults
  • Elderly

(c) Expected Findings:

  • Children: typically sleep 8–10 hours
  • Adults: typically sleep 6–8 hours
  • Elderly: may sleep less at night but take naps

(ii) School Timings Project:

Data Collection: Students collect information on daily timings of different schools for Grade 8, including class time and break time.

Analysis: Students analyze patterns in school schedules from various sources.

Expected Findings:

  • School hours typically range from 6–8 hours
  • Start times vary from 7:30 AM to 9:30 AM
  • Break structures vary across schools
Exercise: Figure it Out (Section 3) | Q: 13 | (Page Page 29)
For More Understanding

Explanation

The chapter encourages hands-on data collection and analysis. Students apply concepts of mean, median, and data visualization to real-world scenarios involving sleep patterns and school schedules.

Solution Steps

  1. Track daily sleep time of all family members for a week (night sleep, naps, and any sleep during the day)

  2. Create visual strips to represent the sleep data

  3. Combine data from all group members

  4. Calculate average and median sleep time for children, adults, and elderly

  5. Share findings and observations

  6. Collect school timing data from neighbours, relatives, parents, and friends

  7. Analyze patterns in school schedules

  8. Present the collected data

Previous