1. Let's look at the sea glass pieces you found at each time:
**Box 1:**
Time 10 min:
🌊 🌊 🌊 🌊
(4 pieces)
Add âž•
**Box 2:**
🌊 🌊 🌊 🌊
(4 pieces)
Time 20 min:
🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊
(10 pieces)
= Total pieces are growing!
2. Now, to find when you found the most pieces between two times, let's look at the differences:
- From 10 to 20 minutes: $10 - 4 = 6$
- From 20 to 30 minutes: $20 - 10 = 10$
- From 30 to 40 minutes: $26 - 20 = 6$
- From 40 to 50 minutes: $29 - 26 = 3$
- From 50 to 60 minutes: $35 - 29 = 6$
The biggest jump is $10$ pieces between 20 and 30 minutes! 🎉
3. To estimate pieces at 25 minutes, look between 20 and 30 minutes where the pieces go from 10 to 20.
Since 25 is halfway, estimate halfway between 10 and 20:
$$\frac{10 + 20}{2} = 15$$
So, about 15 pieces at 25 minutes.
Great job! Keep finding sea glass! 🌟🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊 🌊
(10 pieces)