Week 09 · Time, mass and liquid volume
Thursday
The thirsty bean rows
// Minutes, grams, kilograms and liters
⏱ about 15 min
Thursday: The thirsty bean rows
Chris the Coyote tips his feather hat and begins a story.
"One hot afternoon, the bean rows drooped," he says.
"Rosie filled a big jug with 9 liters of water."
"Then she poured in 6 liters more."
"She watered from 5:10 until 5:45, hopping from row to row."
"By sunset, every bean leaf stood up tall and green."
Learn it: liters
Liquid volume is how much liquid a container holds.
We measure liquid volume in liters. We write L.
A jug has marks like a number line.
The water reaches the 6 mark, so the jug holds 6 liters.
HOW MANY LITERS?
- Read the question.
- Tap your answer.
How many liters of water are in the jug?
How many liters of water are in the jug?
How many liters of water are in the jug?
How many liters of water are in the jug?Story: Rosie waters the beans
Rosie had 9 liters of water. She added 6 liters more.
9 + 6 = 15, so the jug held 15 liters.
She watered from 5:10 to 5:45. That is 35 minutes.
QUESTIONS ABOUT THE STORY
- Read the question.
- Tap your answer.
Rosie has 9 liters of water. She adds 6 liters more. How many liters now?Rosie waters from 5:10 to 5:45. How long does she water?
Which unit tells how much water the jug holds?
LITER STORY PROBLEMS
- Read the question.
- Tap your answer.
A tub holds 20 liters. Bennie pours out 7 liters. How many liters are left?
Rosie fills 5 cans. Each can holds 4 liters. How many liters in all?
Chris shares 18 liters of water equally among 3 rows. How many liters for each row?
Bennie uses 8 liters, then 7, then 5. How many liters does he use?
Check each sentence one at a time.
| Sentence | True or false? |
|---|---|
| We measure liquid volume in liters. | ? |
| 9 + 6 = 15 | ? |
| From 5:10 to 5:45 is 25 minutes. | ? |
| 5 × 4 = 20 | ? |
WHY THIS EXERCISEFrom 5:10 to 5:45 is 35 minutes, not 25.
Try it
Fill a cup with water at the sink.
Pour it into a big empty bottle.
Count how many cups fill the bottle.
Is the bottle more or less than a liter? Check its label with a grown-up.
Pour it into a big empty bottle.
Count how many cups fill the bottle.
Is the bottle more or less than a liter? Check its label with a grown-up.
Draw Rosie watering the bean rows with her jug.
What a story! Tomorrow Freddy has a review game.