Make your pieces explain it
Use unit sums, joining, separating and grouping on new quantities.
Explore this lesson →8 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Identify the fixed whole and one equal fractional unit.
- Build the relationship without losing or duplicating units.
- Connect your construction to an exact equation or result.
Something to notice
Invite an unaided first construction and explanation on these new quantities. Record later help separately; a repeated original is not fresh transfer.
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.NF · 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.