Lesson plan

8. Counting with different orders and arrangements (C)

  • Created by:
  • Standards:
  • Tags:
teaches Common Core State Standards CCSS.Math.Content.K.CC.B.4b http://corestandards.org/Math/Content/K/CC/B/4/b
teaches Common Core State Standards CCSS.Math.Practice.MP3 http://corestandards.org/Math/Practice/MP3
teaches Common Core State Standards CCSS.Math.Practice.MP6 http://corestandards.org/Math/Practice/MP6
Quick assign
Preview assignment >

You have saved this lesson plan!

Here's where you can access your saved items.

Dismiss
Content placeholder
  1. Begin lesson Begin assignment

Tip: swipe on touch devices, use your keyboard's ← and → arrow keys, or clicker buttons to quickly navigate the lesson plan

or to view additional materials

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

Lesson objective: Understand that the number of objects is the same regardless of arrangement or the order counted.

Students bring prior knowledge of rote counting to 10 from K.CC.1. This prior knowledge is extended to counting sets in different orders or arrangements as students consider how changing the order or arrangement effects the count. A conceptual challenge students may encounter is thinking about part of a set and the entire set at the same time. 

The concept is developed through work with multi-colored counters, which can be counted in different ways and arrangements but still show the same number.

This work helps students deepen their understanding of equivalence because different arrangements of objects can be represented by the same count.

Students engage in Mathematical Practice 3 (Construct viable arguments and critique the reasoning of others) as they consider multiple points of view and then through modeling the problem on their own, come up with a justification for their reasoning.

Key vocabulary:

  • arrange
  • counters
  • triangles

Special materials needed:

  • counters in 2 different colors
Provide feedback