Lesson 17 Learning Objectives: (optional)
Estimate and use a scale to measure the mass of objects in grams and kilograms
Compare measurements in different units and choose the most appropriate unit to measure mass
Reflect:
*Reflect in your math journal. Draw, create or write to share your thinking. See Lesson 17 learning guide for more reflection questions, real life anchoring, playful explorations and creative invitations.
Two students each weigh something. One gets 1001g. The other gets 1kg. Who has more? Or do they have the same? Why?
When does precise mass measurement matter?
You have an object that is hard to carry, but doesn’t weigh much. What might it be? What does that tell you about how we feel mass in real life?
How did estimating and converting mass help you understand gram and kilogram measurements?
Math Talk:
Have a conversation about this image. Be curious. Be creative. Can you see in different ways?
Which one doesn't belong and why?
What numbers and measurements do you notice? How do you see?
Design by LM using GeoGebra Scale Simulator
