Saturday, May 11, 2013

Comparing and Measuring Mass

In recent weeks we have been focusing on mass during class maths lessons. Given the success of our comparing and ordering capacity lessons, I decided to create a similar sequence of lessons for comparing and measuring mass using balance scales.

The first lesson was a cooperative task whereby students worked in groups of four to select items, compare them, measure their mass in a uniform unit and record their results in both written and video form. Students enjoyed this hands on approach and worked effectively in their teams. We then had a sharing time for students to select a video to show the class.

The second lesson was a rich task for assessment purposes. Students were required to select items for Little Red Riding Hood to take in her basket to her grandmother's house. They needed to choose five or more items weighing a total of less than one kilogram. While the task went well, it got pretty hectic when I tried to have everyone doing the assessment task at the same time and recording their measurements as well. I got students to finish off one at a time at stations and that was much more sane, so that's what I would recommend for anyone trying to do this. I would also recommend students only video recording an explanation of their results when they have completed the measurement rather than the whole process.

I have uploaded the lessons to my Teachers Pay Teachers store.
The packet includes:
Instructions and recommendations for use
Cooperative task and worksheets (including version without video cameras)
Rich task for assessment with worksheets and rubric

I'm really enjoying creating these measurement tasks with rich tasks relating to fairy tales. I wonder what I'll do when I get to length and area!

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