Compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models Video Lesson

About This Video

Curriculum-aligned Grade 3 Mathematics lesson video for Compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models. Use it for classroom preview, instruction support, or home review.

This watch page is dedicated to the video. For the complete text lesson plan, activities, standards alignment, and answer guides, use the companion lesson page: Compose and decompose numbers up to 100,000 as a sum of so many ten thousands, so many thousands, so many hundreds, so many tens, and so many ones using objects, pictorial models lesson plan.

Video Learning Notes

In this lesson, students learned to compose and decompose numbers up to 100,000 by breaking them into sums of ten thousands, thousands, hundreds, tens, and ones. They used concrete objects, pictorial models, and expanded notation to understand the value of each digit and the mathematical relationships in the base-10 place value system. This foundational skill supports their ability to work with large numbers and understand number structure deeply.

Learning Goals

• Compose and decompose numbers up to 100,000 as sums of ten thousands, thousands, hundreds, tens, and ones using objects, pictorial models, and numbers, including expanded notation.
• Describe the mathematical relationships found in the base-10 place value system through the hundred thousands place.

Curriculum Context

Grade: Grade 3

Subject: Mathematics

Curriculum: TEKS