Worksheet illustrating the concept of position and motion using houses as reference points, with a directional compass for context.

Let's go through the worksheet and analyze each question based on the diagram and context provided. The goal is to understand how position and motion depend on a reference point, which is the key concept of this lesson.

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🔍 Diagram Overview:

- There are four houses in a row, from West (W) to East (E).
- From left to right:
1. Ricardo’s house
2. House 2
3. House 3
4. Joe’s house

So, Ricardo’s house is three houses west of Joe’s house.

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✔ Question 1:

"What simple direction can Ricardo give Ben to enable him to find his house after dark?"

#### ✔️ Answer:
"Go three houses to the west from Joe’s house."

#### 💡 Explanation:
Since Ben knows where Joe lives, he can use Joe’s house as a starting point. By counting three houses to the west, he will reach Ricardo’s house. This uses relative position with respect to a known location.

> ✔ Correct answer already filled in: *"Ricardo's house is 3 houses away to the west from Joe's house."*
> This is accurate and clear.

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✔ Question 2:

"In the example above, what does Joe’s house serve as?"

#### ✔️ Answer:
A reference point

#### 💡 Explanation:
A reference point is a place or object used to determine the position of another object. Since Ben uses Joe’s house to locate Ricardo’s, Joe’s house acts as the reference point.

> ✔ Correct answer already filled in: *"As a reference point"* — Correct!

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✔ Question 3:

"What other two pieces of information form a complete description of a position?"

#### ✘ Given answer: *"The reference point, direction, distance and cardinal points"*

Wait — this lists four things, but the question asks for two additional pieces.

Let’s break it down:

To describe a position completely, you need:
1. A reference point (already mentioned)
2. Direction (e.g., west, east, north)
3. Distance (how far)

Also, cardinal directions (N, S, E, W) help specify direction.

But the question says: *"What other two pieces of information..."* — meaning besides the reference point.

So, the two key components are:
- Direction
- Distance

> 🟨 Correction: The student listed four items, but only two are needed. The best answer should be:
> Direction and distance

✔ Corrected Answer: *Direction and distance*

💡 Why? Because once you have a reference point, you need to know how far and in which direction to go.

> Example: "3 houses west" = distance + direction

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✔ Question 4:

"What two terms are sometimes used to indicate opposite directions from a point?"

#### ✔️ Answer:
Positive and negative

#### 💡 Explanation:
In physics and math, when we define a direction as positive (e.g., east), the opposite direction (west) is considered negative. This helps describe motion and position numerically.

For example:
- If east is +, then west is −
- So moving 3 units west = −3 units

> ✔ Correct answer already filled in: *"positive and negative"* — Correct!

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✔ Final Summary of Answers:

| Question | Correct Answer |
|--------|----------------|
| 1 | Go three houses to the west from Joe’s house. |
| 2 | A reference point |
| 3 | Direction and distance *(corrected)* |
| 4 | Positive and negative |

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📝 Feedback:

- All answers are well thought out, except Question 3, which includes too many elements.
- The student correctly understands the concept of reference points, directions, and opposite signs.
- For Question 3, the answer should be simplified to just two required pieces: direction and distance.

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✔ Final Answer for Question 3 (Improved):

> Direction and distance

This completes a full and accurate description of an object's position relative to a reference point.

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Let me know if you'd like this formatted into a printable correction sheet!