Measurement
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Annemiel. (October 7, 2008). Measuring Tape. (Online Photo).
Retrieved from: https://www.flickr.com/photos/annemiel |
This week we discussed measurement and had creative presentations to demonstrate how students utilize estimation and then apply it. This was completed through cutting magazine pictures out and comparing or tracing your hand on 1 cm graph paper, and 2 cm graph paper to conceptualize the differences.
Measurement has three different stages in which students define and compare two things to determine which has a greater measure. This is the estimation and investigation stage. Then
nonstandard units define measurement based on things like length, cubes, etc. where finally a
standard unit is assigned such as: metre (m), centimetre (cm), or millimetre (mm) for example. Through this, students are able to challenged their critical thinking skills and have the skills to apply the knowledge of appropriate units, and conversations.
During my placement, I had the opportunity to see a grade 7 class learning about measurement and in particular these concepts:
- Linking real-life applications of measurement
- Comparing 3D shapes of same volume
- Length, perimeter, area, volume, and capacity
- Looking at even more complex shapes 2D shapes
- Starting to use formulas of perimeter and area of more
complex shapes (trapezoid)
- Volume and surface area and relationship
- Selecting most appropriate units, conversions, getting
into conversions of area units
The lesson started with students estimating various measurement values including what would be compared to a mm, cm, m, km and then looking at those values in the squared concept (area), and finally the cubed (volume). Following that we had a very hands on interactive activity where students were to estimate how many grade 7's would fit in the metre squared that the teacher had created. Guesses included 7, 8, 15, 18 students. Then they were able to participate by seeing just how many of them they were able to fit. The end result- 12! It was taken one step further by adding volume (metre-cube). They now had to work as a team to see how they would fit students in while incorporating height.. There were many creative ideas. This lead into discussing density, and how to pack things in tightly without wasting space. It lead to a discussion on chips and questioning why there is air in them. The teacher had a bag and demonstrated to the class how big the bag is and how the chips can move "freely". He then squished the chips to show the true capacity.
This activity was extremely inclusive and engaging! It incorporated real-life application to measurement, and forming relationships. Students then worked on conversion problems with no class room management issues. I think this was because they were truly excited and invested in their learning! It was a really awesome experience to see, and a great example of how to make the math topic of measurement fun and engaging!
I really liked the scavenger hunt provided in class and I think it would be a great way to encourage students to be hands on, and looking for those real-life applications in their world. As an outdoors enthusiast I loved that it was outside, and allowed students to be healthy and active while learning. This is a great tool that I will likely use in the future and adapt to other concepts.
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| Swayze, R. (November 10, 2016). Math Scavenger Hunt. (Personal Photo) Retrieved from personal library. |
Measurement is an excellent strand to demonstrate real-world application, and the importance manipulative like a ruler, protractor or a measuring tape to guide us in finding correct measurements and calculations. Through the estimation phase, students can appreciate this when they compare their estimates to real values.