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Grade 1 math worksheet for measuring lengths using non-standard units with anchor icons.

A Grade 1 worksheet titled "Measuring Lengths with Non-Standard Units of Measure" showing five boats of varying sizes, each measured with colorful anchor units. Students are to measure each boat using the anchor units and write the number of anchors in the boxes on the right. The worksheet includes a space for the student's name and a logo for ARGO Prep.

A Grade 1 worksheet titled "Measuring Lengths with Non-Standard Units of Measure" showing five boats of varying sizes, each measured with colorful anchor units. Students are to measure each boat using the anchor units and write the number of anchors in the boxes on the right. The worksheet includes a space for the student's name and a logo for ARGO Prep.

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Show Answer Key & Explanations Step-by-step solution for: Length Non Standard Units - ArgoPrep
Let's solve this step-by-step!

This worksheet is about measuring lengths using non-standard units — in this case, anchors. The task is to measure the length of each boat by counting how many anchor icons fit along its length.

We'll go through each boat one by one and count the number of anchors shown beneath it.

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🔹 Boat 1:


- There are 10 anchors lined up below the first boat.
- So, the length is: 10 anchors

Answer: 10 anchors

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🔹 Boat 2:


- Count the anchors beneath the second (larger) cruise ship.
- There are 14 anchors.

Answer: 14 anchors

---

🔹 Boat 3:


- Count the anchors under the third boat.
- There are 12 anchors.

Answer: 12 anchors

---

🔹 Boat 4:


- Count the anchors under the fourth boat.
- There are 11 anchors.

Answer: 11 anchors

---

🔹 Boat 5:


- Count the anchors under the fifth boat.
- There are 13 anchors.

Answer: 13 anchors

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Final Answers:



| Number | Length in Anchors |
|--------|-------------------|
| 1 | 10 anchors |
| 2 | 14 anchors |
| 3 | 12 anchors |
| 4 | 11 anchors |
| 5 | 13 anchors |

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📝 Explanation:


This activity teaches non-standard measurement, where instead of using rulers or inches, we use a consistent object (here, an anchor) to compare lengths. Each anchor represents one unit, so you simply count how many anchors fit end-to-end along the object being measured.

The key skill is one-to-one correspondence and counting accuracy.

---

Fill in the blanks on the worksheet:


1. 10 anchors
2. 14 anchors
3. 12 anchors
4. 11 anchors
5. 13 anchors

You're all set! 🚢⚓
Parent Tip: Review the logic above to help your child master the concept of measurement with nonstandard units worksheet.
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