Reflection: Developing a Conceptual Understanding Finding a Gram - Section 3: Counting Grains of Rice and Discovering a Gram


When I planned this lesson, I got out my gram weights. I could have just shown them the gram and kilogram and weighed that in front of them. But, I wanted them to have a solid connection to real world things that are a gram, and so I chose not to show them, but to have them discover what a gram was. I really felt this was necessary when one of my students thought a gram was the size of a kilometer!

As the lesson progressed and I filmed them, I could clearly see my planning and implementation of this lesson was solid. My plan for them to discover a gram through rice, I was afraid was off the wall! But, as I saw students put too much rice on the scale in some cases and quickly figure out which way they had to go to get a gram, I could see that it was practical and fun, and that the standard was being met.

I had purposely demonstrated more than a gram, yet some students didn't quite catch on to that during the lesson. It didn't matter! The freedom of discovering that 38 grains or so of rice is a gram allows them to figure out the relativity part that is needed to be mastered in the standard. This standard makes them acutely aware of size in comparison to something. It was so much better than just showing them what a gram is!

Then, when I insisted everyone weigh a paperclip, they weren't surprised that it weighed a gram, giving them a clear concept of an everyday thing they could refer to in their minds as a gram.

  Discovery Based Learning
  Developing a Conceptual Understanding: Discovery Based Learning
Loading resource...

Finding a Gram

Unit 2: Metric Measurement
Lesson 10 of 18

Objective: SWBAT recognize gram units as a method of measuring mass, and understand relative sizes and uses for the units.

Big Idea: Students create a gram and develop understanding of how to use a gram scale. They compare and understand the purpose behind the relative units and create a gram flipbook to help them recognize relative sizes.

  Print Lesson
3 teachers like this lesson
paper clip gram
Similar Lessons
Stairway to Learning! Moving Your Way to Understanding Metric Unit Conversions
6th Grade Science » Scientific Measuring and Variable Testing
Big Idea: Many 6th graders find it difficult to understand the metric system. By going outside and drawing life-size staircases with chalk, this lesson provides students with a kinesthetic way to become comfortable with metric unit conversions.
East Walpole, MA
Environment: Suburban
David Kujawski
Buckling and Bending the Earth's Surface - Weathering Day 1
4th Grade Science » Weathering Wreaks Havoc
Big Idea: Students will explore and understand that the crust of the earth is constantly moving and changing over time due to weathering processes.
Anchorage, AK
Environment: Urban
Jillian Gates
Squares in a Row Day 2 of 6
7th Grade Math » Writing expressions
Big Idea: Students will calculate the number of squares on a checkerboard without counting and will begin to notice patterns emerging in a data table.
Dixon, CA
Environment: Suburban
Erica Burnison
Something went wrong. See details for more info
Nothing to upload