Same sharing, a different unit
Connect known sharing facts to tens, hundreds and thousands.
Explore this lesson →10 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- A place unit has both a count and a value.
- Share the count of units equally, then name their value in ones.
- Changing the place unit changes the amount, even when the unit-count division fact stays the same.
Something to notice
Ask the learner to name the unit before calculating. Can they explain why four hundreds are not four ones, and reconstruct the original amount by multiplying the share by the number of groups?
Try it. Change it. Explain it.
Open the lesson to use its pictures and controls. In How it works, connect the picture to the idea. In Play & discover, change the quantities and notice what stays the same. In Your turn, answer questions and use the explanation to check your reasoning.
You can ask for help, draw on the thinking pad, or listen to the question and answer options. Progress distinguishes independent work from work completed with help.
Let’s try it →Curriculum connection
Grade 4 · 4.NBT · US Common Core
This lesson is mapped to these standards. A completed activity is practice evidence, not a claim of mastery. Content is checked against the linked official standards and its mathematical models are tested.