Math Week2 L2 Story

 

The Mathematics of Water Safety

L2 Math Story - Week 2: Ratios, Proportions & Percentages Word Count: 500

Chapter 1: Something is Still Wrong

After solving the water mystery, Manthan was doing more calculations in the library. He looked confused.

Gaurav T found him with papers everywhere. "What's wrong?"

"The numbers don't match," Manthan said. "I calculated how much water athletes need. But some got sick even when they drank enough water."

Rushabh came to help. "Show us your calculations."

Manthan showed his data from five villages:



Athlete Water Data:

  • Rohit (Khapa): Needed 2050ml, drank 2100ml - Got sick

  • Arjun (Khubala): Needed 1870ml, drank 1900ml - Got sick

  • Priya (Badegaon): Needed 2230ml, drank 2300ml - Stayed healthy

  • Vikram (Chargaon): Needed 1725ml, drank 1800ml - Stayed healthy

  • Meera (Nandapur): Needed 2410ml, drank 2500ml - Got sick

"Look," Manthan pointed. "Rohit and Arjun drank enough water but still got sick. Priya and Vikram drank the right amount and stayed healthy."

Chitra joined them with her own notebook. "I think I know why. I was studying the water test results from all villages."

She showed her findings:

Village Water Test Results:

  • Khapa: 150mg/L nitrates (very dirty)

  • Khubala: 120mg/L nitrates (dirty)

  • Badegaon: 45mg/L nitrates (clean)

  • Chargaon: 30mg/L nitrates (clean)

  • Nandapur: 180mg/L nitrates (very dirty)

"See the pattern?" Chitra asked. "Athletes who got sick lived in villages with dirty water. Athletes who stayed healthy lived in villages with clean water."

Chapter 2: The Extra Water Formula

"So dirty water means you need MORE water than our basic calculation," Gaurav T realized.

"Exactly!" Manthan said. "When your body fights germs, it uses extra water."

They worked together to create a new formula. Chitra suggested using percentages.


New Water Formula:

  • Clean water (0-50mg/L): Use normal calculation

  • Dirty water (51-150mg/L): Add 20% extra water

  • Very dirty water (151mg/L+): Add 40% extra water

They tested their new formula:

Recalculating with Extra Water:

  • Rohit (very dirty water): 2050ml + 40% = 2870ml needed, only drank 2100ml ✗

  • Arjun (dirty water): 1870ml + 20% = 2244ml needed, only drank 1900ml ✗

  • Priya (clean water): 2230ml + 0% = 2230ml needed, drank 2300ml ✓

  • Vikram (clean water): 1725ml + 0% = 1725ml needed, drank 1800ml ✓

  • Meera (very dirty water): 2410ml + 40% = 3374ml needed, only drank 2500ml ✗

"Perfect!" Rushabh exclaimed. "Now all the math makes sense."

Chapter 3: Helping Villages with Math

The friends took their new formula to Principal Manoj Acharya.

"We found why some athletes got sick even when they drank enough water," Manthan explained. "Dirty water means you need more water."

Manoj Acharya studied their calculations. 


"This is excellent math work. Can you make it simple for villages to use?"

Chitra had an idea. "We can make a chart. Villages test their water, then look up how much extra water they need.’’



Simple Village Chart:

  • Water test shows 0-50: Drink normal amount

  • Water test shows 51-150: Drink 20% more

  • Water test shows 151+: Drink 40% more

They also calculated costs:

Cost Comparison (per month):

  • Testing water: ₹15

  • Extra water when needed: ₹30

  • Getting sick and medicine: ₹500-1000

"Testing costs much less than getting sick," Gaurav T pointed out.

Two weeks later, health workers in ten villages were using their chart. Athletes stayed healthy, and fewer people got sick from bad water.

"Math helped us solve a real problem," Manthan said proudly.

"The best part," Chitra added, "is that now we can prevent sickness instead of just treating it."

Their mathematical thinking had created a tool that could help many villages stay healthy.

Comments

Post a Comment

Popular posts from this blog

Anubhav Science Worksheet1 L3 Week1

  Simple Weather Science Science & Geography Worksheet - L3 Name: _________________ Module: ______________ Date: __________ Section A: Water Cycle Made Easy Fill in the blanks with these words: evaporation, condensation, precipitation, collection Sun heats water → _____________ (water goes up) Water vapor gets cold → _____________ (clouds form) Clouds get heavy → _____________ (rain falls) Rain goes to rivers → _____________ (water gathers) Easy Questions: Where do monsoon clouds get their water from? Why doesn't our Earth run out of water? What happens to rain that falls on sports grounds? Draw: Make a simple picture showing sun → cloud → rain → river Section B: Air Pressure Basics Understanding Air Pressure: Look at this simple chart: Air Pressure Weather High Sunny, clear Medium Cloudy Low Rainy, stormy Answer: When air pressure is high, what weather comes? When air pressure is low, what weather comes? If you feel "heavy air" before rain, is that high or low p...
Read more

Anubhav Week1 L2 Science Worksheet2

  Weather Science Quick Practice - Sheet 2 Independent Science/Geography Practice - L2 Name: _________________ Module: _________________ Date: _________________ Section A: Water Cycle Steps Fill in the missing words: evaporation, condensation, precipitation, collection When sun heats water, _____________ happens and water goes up as vapor. When water vapor gets cool, _____________ makes clouds. When clouds get heavy, _____________ brings rain down. Rainwater flows into rivers through _____________. Quick Questions: Which step makes monsoon clouds over the sea? Why does the same water keep moving in this cycle? Section B: Air Pressure Made Simple Weather Prediction Practice: Look at these air pressure readings: Day Air Pressure What Happened Monday High (1015) Sunny day Tuesday Medium (1008) Cloudy Wednesday Low (995) Heavy rain Answer: What pattern do you see between air pressure and weather? If Thursday shows high pressure, what weather would you expect? Why does low air pressu...
Read more

Science Week 1 L1 GK Sheet

Image
  Weather Wonders: Amazing Facts for League Builders! 🌧️⚡ Fun Facts & General Knowledge - L1 🇮🇳 Maharashtra's Monsoon Magic Did you know? Nagpur receives about 1200mm of rainfall every year – that's enough water to fill a swimming pool 1.2 meters deep across an entire football field! Your village near Nagpur gets this natural gift every monsoon. Weather Hero Alert! The Pune-based Indian Institute of Tropical Meteorology was established in 1962 and has been predicting monsoons for over 60 years. Their scientists help protect farmers across Maharashtra from unexpected weather changes. Local Legend: The Western Ghats, just 200km from your village, are responsible for Maharashtra's monsoon pattern. When moisture-heavy clouds from the Arabian Sea hit these mountains, they're forced upward, cool down, and release their water as rain! Kids Learn About Monsoons | Science for Kids ⚡ Lightning: Nature's Electric Sho...
Read more