## Reflection: Adjustments to Practice Lewis and Clark and Kilometers - Section 5: Sharing our "Aha!" moments.

I really like this lesson! It applies map scale reading skills, which are really weak and need practice. I did wonder as we read the scale if this skill will completely go away with the use of Mapquest and other online map programs. But, mathematically, the reasoning is so valuable in this lesson because they had to think about doubling a scale, manipulating a tool to measure the map and working together to solve the conversions.I saw confusion with two sets of partners involving understanding the scale. I was surprised that they didn't understand, especially with the 500 being right there. I wondered if I had said something that made them think it was one kilometer. I really reflected on my instruction and asked them to find out that it was just them not really understanding what the 500 meant.  I need to be careful next time to not assume they understand the meaning of that number.

The worksheet was a really good tool. They enjoyed it because the map was simple enough. However, I decided that  I needed to clean it up a little and recopied a new one. I added another task at the bottom because a student asked why we weren't figuring out the total distance from St. Louis to Fort Clatsop. So, I added that in on the new sheet. I also printed Meters at the top of the column because students thought I meant for them to read the miles scale and enter that there. They didn't connect the continued lessons of conversions from the days before, to this lesson. They kept wanting to read miles too. I needed to be cleared that we do not cross systems and we are only studying metric units even though in the real world, we may see the two together.

This fullfilled the using of tools strategically as required by Math Practice 5. It also fulfilled the math standard because of using models and converting from a larger unit to a smaller unit.

Changing a few things.
Adjustments to Practice: Changing a few things.

# Lewis and Clark and Kilometers

Unit 2: Metric Measurement
Lesson 7 of 18

## Big Idea: After watching a short video about Lewis and Clark, students examine a map of their journey and use the scale to measure kilometers. They convert the measurements to meters using an equation and a two column chart.

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65 minutes

### Mary Ellen Kanthack

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