Decomposing the Number 10©

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About this Lesson:

This lesson focuses on K.OA.A.3. The students learn how to decompose numbers less than or equal to ten into pairs in more than one way and to record each decomposition by circling the pairs and writing the corresponding equation. Core Action 3 is strongly exhibited in this lesson.  The video used in this learning experience has been edited to show the arc of the lesson.  To see the full-length video, go to teachingthecore.org.

About the Instructional Practice Toolkit:

The Instructional Practice Toolkit (IPT) is designed for teachers and those who support teachers to build understanding and experience with college- and career-readiness (CCR) standards-aligned instruction. This Toolkit was designed to answer the question, “What do college- and career-ready standards look like in action?”  

The Toolkit modules illustrate the throughline that connects the planning and design of a lesson, classroom instruction, and student work when they are all aligned to CCR standards. Resources in the IPT include the facilitator guide, presentation (with notes for the facilitator), and participant handouts with associated model responses for the following activities:

It is highly recommended that the presenter review all resources prior to facilitating these activities.

About this Video:

This video shows a real-life classroom, with all the real-life challenges and successes found in daily interactions between students and teachers. It has been selected because it includes illustrations of the Core Actions and Indicators embedded in the day-to-day work happening in schools, and so it offers opportunities to practice using and norming expectations around the IPG: Coaching Tool. Learn more about this video and others in the collection.