Class 2 · Class project
Banana diary: how does it change?
A green banana and a spotty banana are the same fruit. How does one change into the other?
हिंदी में समझें
हरा केला और धब्बेदार केला एक ही फल है। एक, दूसरे में कैसे बदलता है?
What you will do: Watch one banana for five days and record dated drawings and words.
हिंदी में समझें
एक केले को पाँच दिन तक देखना, और हर दिन तारीख के साथ चित्र और शब्द लिखना।
Long project. Look once a day for five days. Each look takes about five minutes.
हिंदी में समझें
पाँच दिन तक रोज़ एक बार देखो। हर बार लगभग पाँच मिनट।
Jump to: How it is reviewed · For grown-ups · For teachers
Safety first
Look and draw. Do not eat the test banana. Wash your hands after touching it.
- The test banana is not for eating during the project. At the end, a grown-up decides what to do with it.
- Keep it on a plate, away from ants and pets.
- Wash hands after touching it.
- If mould grows, a grown-up throws it away.
हिंदी में समझें
देखो और चित्र बनाओ। जाँच वाला केला मत खाओ। छूने के बाद हाथ धोओ। फफूंद लगे तो बड़ा फेंक दे।
You will need
- One bananaA green or yellow one with few spots is best.
- A plate
- Paper folded into six boxesFive days and one box for your sentence.
- A pencil and crayons
हिंदी में समझें
एक केला (हरा या कम धब्बे वाला पीला), एक प्लेट, छह खानों में मोड़ा काग़ज़, पेंसिल और रंग।
The project, step by step
Day 1: start your diary.
Put the banana on a plate.
Write the date in box 1.
Draw it. Colour it.
हिंदी में समझें
पहला दिन: केला प्लेट पर रखो। पहले खाने में तारीख लिखो। चित्र बनाओ और रंग भरो।
Look closely each day.
What colour is it?
Count the brown spots.
Touch it gently: hard or soft?
हिंदी में समझें
रोज़ ध्यान से देखो: कौन-सा रंग है? भूरे धब्बे गिनो। धीरे से छूकर देखो: सख़्त या नरम?
Draw and date it.
A new box each day.
Write the date first.
Add one word: yellow, spotty, soft.
हिंदी में समझें
हर दिन नया खाना। पहले तारीख लिखो। एक शब्द जोड़ो: पीला, धब्बेदार, नरम।
Compare first and last.
Put box 1 next to box 5.
What changed?
हिंदी में समझें
पहला और पाँचवाँ खाना साथ रखो। क्या बदला?
Finish safely.
Tell a grown-up you are done.
They decide about the banana.
Wash your hands.
हिंदी में समझें
बड़े को बताओ कि काम पूरा हुआ। केले के बारे में वे तय करेंगे। हाथ धोओ।
What you hand in or show
Your banana diary
Five dated boxes, one for each day.
A drawing, a spot count and one describing word in each box.
A last sentence: "From day 1 to day 5, the banana ___."
Make it on paper. Keep it with you. Nothing to upload.
हिंदी में समझें
पाँच तारीख वाले खाने। हर खाने में चित्र, धब्बों की गिनती और एक शब्द। आख़िरी वाक्य: "पहले से पाँचवें दिन तक केला ___।"
How it is reviewed
A grown-up or teacher talks it through with you using this guide. There are no marks for neatness, spelling or drawing skill.
| What we look at | Starting | Growing | Strong |
|---|---|---|---|
| Method | Looks at the banana on some days. | Looks every day and records in date order. | Looks at the same time each day and explains why that is fair. |
| Evidence | Draws the banana. | Writes the date, a drawing and a spot count every day. | Notes colour, spots and feel every day, including days with little change. |
| Explanation | Says the banana changed. | Says how it changed from day 1 to day 5. | Suggests why, such as "it is ripening", and what might speed it up. |
| Revision | Makes no changes. | Adds something they forgot after day 1, such as counting spots. | Plans a new test, such as one banana in a cool place and one in a warm place. |
हिंदी में समझें
बड़ा या शिक्षक देखते हैं: तरीका (रोज़ तारीख के क्रम में), सबूत (तारीख, चित्र, धब्बों की गिनती), समझाना (क्या और क्यों बदला), और सुधार (नई जाँच की योजना)।
Think back
On which day did the banana change most?
What do you think made it change?
हिंदी में समझें
किस दिन केला सबसे ज़्यादा बदला? तुम्हें क्या लगता है, उसे किस चीज़ ने बदला?
Investigate further
- Watch a tomato or a guava for five days. Does it change the same way?
- Keep one banana in a cool place and one in a warm place. Which changes faster?
हिंदी में समझें
पाँच दिन तक टमाटर या अमरूद देखो। क्या वह भी ऐसे ही बदलता है? एक केला ठंडी जगह और एक गरम जगह रखो। कौन जल्दी बदलता है?
For grown-upsTap a heading to open it. The safety notes are at the top of the page.
Before you start
- Buy or set aside one banana that is not needed for eating.
- Choose a place out of reach of ants and pets.
Questions that help
- "What is the date today? Which box is it?"
- "How many spots today? How many yesterday?"
What's really going on
Bananas ripen: starch turns to sugar and the skin turns yellow, then brown. Warmth speeds this up.
At the end you decide whether the banana can be eaten. Any mould means it goes in the bin.
Other ways to do it
- No banana? Watch a slice of apple (browning in hours) or a piece of bread on a plate (a grown-up disposes of it).
For teachersLearning aims, classroom ideas and what to look for.
Learning aims
- Keep a dated observation diary over five days.
- Describe change over time with words and counts.
Subject links
- Environmental studies: food and how it changes.
- Mathematics: dates, counting.
- Language: describing words.
These links are general. They have not been checked against a specific board syllabus.
In the classroom
- Keep two class bananas: one by a sunny window, one in a cool cupboard. Compare at the end of the week.
What to look for
- Dates every entry in order.
- Uses counts or words to describe change, including days with little change.