Lesson plan

Create three-digit numbers by using ones, tens, and hundreds

teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.1 http://corestandards.org/Math/Content/2/NBT/A/1
teaches Common Core State Standards CCSS.Math.Content.2.NBT.A.1b http://corestandards.org/Math/Content/2/NBT/A/1/b
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3

You have saved this lesson plan!

Here's where you can access your saved items.

Content placeholder

or to view additional materials

You'll gain access to interventions, extensions, task implementation guides, and more for this lesson plan.

Big Idea: 3-digit numbers can contain a “hundred," which is equal to 10 groups of 10. This lesson builds on previous lessons' work with two-digit numbers. The task asks students to model the three-digit number shown in the question according to guidelines, i.e. with only hundreds and tens. This approach gives students support in building three-digit numbers; the base ten blocks give students a jumping-off point for their thinking. For instance, they can immediately think about how they could show 21 in only ones instead of tens and ones. Special Materials: Base Ten Blocks