New numbers, same place ideas
Apply place meaning to fresh notation, exchanges and comparisons.
Explore this lesson →15 practice questions · Optional read aloud · Thinking pad
Let’s understand the idea.
- Read the new number or representation carefully; familiar task shapes may contain different zero places.
- Keep digit counts, unit values and represented amounts distinct.
- Translate names and expansions without losing placeholder zeros.
- Check whether an action preserves the amount or changes its units, and compare from the first differing place.
Something to notice
Let the learner begin a fresh task without an example. Ask what changed from earlier work and which place-value idea still applies. Revisit new numbers on another day, using spoken names, cards or a chart where helpful. These tasks sample fresh examples in the same families; they do not establish fluent performance in every context.
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.