Mr. Stiles is introducing measurement to his third-grade class. He has rulers, stopwatches, scales, and graduated
cylinders available for them to use. Based on previous lessons, he knows that most students do not know how to
use these tools correctly. What is the best introductory lesson for this unit?
A a demonstration on how to use each tool
a pre-quiz that requires the use of each of the tools
providing students time to explore the items and then creating a K-W-L chart

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UpStudy AI · Accepted Answer

1. **Understanding the Problem:**  
   Mr. Stiles is introducing measurement tools to his third-grade class. Since most students are unfamiliar with the proper use of these tools, the lesson should help students explore and begin to understand them.

2. **Analysis of Options:**  
   - **A demonstration on how to use each tool:**  
     While a demonstration provides clear, direct instruction, it does not actively involve students in the learning process as much as an exploratory activity might.  
     
   - **A pre-quiz that requires the use of each of the tools:**  
     A pre-quiz may be intimidating or discouraging for students who do not have prior experience, and it does not facilitate hands-on learning.
     
   - **Providing students time to explore the items and then creating a K-W-L chart:**  
     Allowing students to explore the tools engages them in inquiry-based learning. Afterwards, creating a K-W-L chart (What they Know, What they Want to know, and what they Learned) encourages reflection and builds connections with their prior knowledge.  
     
3. **Justification:**  
   Given the context that most students do not know how to use these tools, the exploratory approach followed by a K-W-L chart helps students form their own understanding before receiving formal instruction. This method fosters curiosity, builds engagement, and provides the teacher with insights into the students' preconceptions.

4. **Final Answer:**  
   The best introductory lesson is to provide students time to explore the items and then create a K-W-L chart.
The best introductory lesson is to let students explore the tools and then use a K-W-L chart to reflect on what they know, what they want to learn, and what they've learned.

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