Week 03 · Times as many
Thursday
The tall pine and the little sapling
// Multiplication as comparing
⏱ about 15 min
Thursday: The tall pine and the little sapling
Chris the Coyote leans back against a mossy rock.
"Lucy once rested on a little sapling that was only 6 feet tall," he says.
"Next to it stood an old pine. It was 48 feet tall."
"Lucy looked up and up. How many saplings tall is that pine?"
"Bennie said, think of it this way: 6 times what number is 48?"
"Lucy counted by sixes on her seven spots and one petal."
"Eight! The pine is 8 times as tall as the sapling."
Chris smiles. "Dividing helps us compare, too."
Story: How many times as tall?
The pine is 48 feet. The sapling is 6 feet.
We write 6 × ? = 48.
48 ÷ 6 = 8, so the pine is 8 times as tall.
QUESTIONS ABOUT THE STORY
- Read the question.
- Tap your answer.
How tall was the sapling?The pine is 48 feet. The sapling is 6 feet. How many times as tall is the pine?
6 × ? = 48
Find the smaller amount
Rosie has 32 clover leaves. That is 4 times as many as Freddy has.
We write 4 × ? = 32.
32 ÷ 4 = 8, so Freddy has 8 clover leaves.
DIVIDE TO COMPARE
- Read the question.
- Tap your answer.
Rosie has 32 leaves, 4 times as many as Freddy. How many does Freddy have?
Hazel walks 54 meters. Lucy walks 9. How many times as far does Hazel walk?
Oliver has 63 feathers. That is 7 times as many as Riley. How many does Riley have?
A pond has 80 lily pads. A puddle has 10. How many times as many?
MULTIPLY OR DIVIDE?
- Read the question.
- Tap your answer.
Bennie has 5 apples. Chris has 6 times as many. How many does Chris have?Chris has 30 apples, 6 times as many as Bennie. How many does Bennie have?
Bennie has 5 apples. Chris has 6 times as many. How many does Chris have?
Chris has 30 apples, 6 times as many as Bennie. How many does Bennie have?
Think of the times fact.
| Sentence | True or false? |
|---|---|
| 48 ÷ 6 = 8 | ? |
| 32 ÷ 4 = 8 | ? |
| 63 ÷ 7 = 8 | ? |
WHY THIS EXERCISE63 ÷ 7 is 9, because 7 × 9 = 63.
Try it
Measure a spoon with paper clips laid end to end.
Now measure a table the same way.
About how many times as long as the spoon is the table?
Now measure a table the same way.
About how many times as long as the spoon is the table?
Draw the little sapling and the tall pine, and label their heights.
What a story! Tomorrow Freddy has a comparing game.