Choose your size argument
Explain new comparisons with a method you choose.
Explore this lesson →8 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Name the reference whole and what is being compared.
- Choose a useful size argument and check every renaming or benchmark fact.
- Connect your picture or measurements to the recorded relation.
Something to notice
Ask for an unaided first argument on a new pair, then invite another method. Keep supported work distinct from independent explanation.
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.