💡Spark
☞ Prepare measuring cups, jugs or cylinders that use millilitres and litres as units.
☞ Ask: “ Do you know what these calibrated marks mean? ”
☞ Quantities of liquid to measure that will end up on the un-numbered calibrations.
☞ Ask: “ What do the marks between the numbers represent on the container? ”
“ How do you know? ”
“ How did you use the marks to work out how much liquid is in the container? ”
📝 Learn
☞ Have kids estimate liquid volume before watching ‘Reading Measuring Devices.’
🚨 When measuring things...
Kids may hold the container and forget to keep it on a flat surface and fail to read the scale correctly.
Kids may have confusion between liquid volume and capacity. For instance, here is a water bottle that has the capacity to hold 600 ml fluid and just fills with 300 ml of water. Some may think the liquid volume of it should be 600 ml.
They may also believe that the liquid volume changes when a set amount is poured from one container to another container of a different size or shape.
✅ Tips
Double check the container is on a flat surface.
Pick a calibrated container and use it to measure different amounts of liquid. For instance, pick a calibrated container that has the capacity to hold 600 ml of liquid. First, fill it with 300 ml of water and ask your kids: "What is the liquid volume?". Then, fill it up and ask the same question again.
Prepare containers of different sizes and shapes. Pour the same amount of liquid into them in order to show the outcomes to your kids.
🪄 Apply
☞ Give your kids more practice by asking them to read liquid volume of different calibrated measuring containers.
☞ Ask: “ Can you find cartons or containers that have liquid volume units? ”
“ Why are they using millilitres or litres as units? ”
🧠 Super Skills - The 21st Century Learner
#Critical Thinking
Kids will learn how to convert liters to millilitres after developing their understanding of these two metric units.
Kids will practice estimating volume when liquid ends up on the un-numbered calibrations
#Communication
Kids will be able to use appropriate mathematical language to describe quantities of liquid.
#Collaboration
Kids may improve this skill by measuring liquid and discussing its volume with their parents.
#Creating & Innovation
This activity can be made more creative and innovative by using different sizes or shapes containers to measure liquid volume.