Problem Description:
The task is to measure the length of each pencil using a ruler and write the length in the box provided next to each pencil. The image shows four pencils placed on rulers, and we need to determine their lengths.
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Solution:
#### Step 1: Understand the Ruler
- The ruler is marked in units (likely centimeters or inches, though the exact unit isn't specified). Each major tick represents a whole unit, and the minor ticks represent fractions of a unit.
- The zero mark on the ruler is the starting point for measuring the length.
#### Step 2: Measure Each Pencil
We will measure the length of each pencil by noting where the tip of the pencil aligns with the ruler.
1.
First Pencil:
- The pencil starts at the 0 mark and ends just before the 5 mark.
- The length is approximately
4.8 units (assuming the minor ticks are tenths).
2.
Second Pencil:
- The pencil starts at the 0 mark and ends just before the 3 mark.
- The length is approximately
2.8 units.
3.
Third Pencil:
- The pencil starts at the 0 mark and ends just before the 2 mark.
- The length is approximately
1.8 units.
4.
Fourth Pencil:
- The pencil starts at the 0 mark and extends slightly beyond the 6 mark.
- The length is approximately
6.2 units.
#### Step 3: Write the Lengths in the Boxes
- For the first pencil:
4.8
- For the second pencil:
2.8
- For the third pencil:
1.8
- For the fourth pencil:
6.2
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Final Answer:
\[
\boxed{4.8, 2.8, 1.8, 6.2}
\]
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Explanation:
- Each measurement was taken by observing where the tip of the pencil aligns with the ruler.
- Precision was considered by estimating the position relative to the minor ticks.
- The results were rounded to one decimal place for clarity.
This method ensures accurate measurement and clear recording of the pencil lengths.
Parent Tip: Review the logic above to help your child master the concept of measuring worksheet 1.
