Lesson 1
Count Large Collections
Lesson Purpose
The purpose of this lesson is for students to count groups of multiples of 10 objects in a way that makes sense to them.
Lesson Narrative
In the previous unit, students learned that a ten is a unit made up of 10 ones. Students learned that teen numbers are made up of 1 ten and some more ones, using 10frames, drawings, and expressions (\(10 + n\)). In kindergarten, students learned the counting sequence by ones and tens up to 100.
The purpose of this lesson is for teachers to formatively assess how students count objects up to 60 through two counting activities. In the first activity, students count objects and represent how many in a way that makes sense to them, then compare the ways they counted. In the second activity, students count bags of different quantities that are multiples of 10, and begin to make sense of grouping objects into tens. Suggested objects include pennies, paper clips, buttons, connecting cubes, inch tiles, counters, or any other objects around the classroom. Students should also be given access to cups, paper plates and double 10frames to help them organize their collections if they would like.
A blackline master of the recording sheet is provided. Students use this sheet multiple times throughout the unit. Consider making 10–12 copies per student.
 Action and Expression
 MLR2
Learning Goals
Teacher Facing
 Count up to 60 objects (multiples of 10) in a way that makes sense to them.
Student Facing
 Let’s count objects.
Required Materials
Materials to Gather
 Bags
 Collections of objects
 Cups
 Double 10frames
 Materials from a previous activity
 Materials from previous centers
 Paper plates
Materials to Copy
 Counting Collections Stages 1 and 2 Recording Sheet
Required Preparation
Activity 1:
 Each group of 2 students needs one bag of 40 objects.
Activity 2:
 Each student will need the blackline master from the previous activity.
 Create 1 set of the following 6 bags of objects for each group of 12 students:
 Bag A: 20 objects
 Bag B: 40 objects
 Bag C: 50 objects
 Bag D: 60 objects
 Bag E: 30 objects
 Bag F: 10 objects
Activity 3:
 Gather materials from previous centers:
 How Close, Stages 1 and 2
 Five in a Row, Stages 13
 Number Puzzles, Stages 1 and 2
CCSS Standards
Lesson Timeline
Warmup  10 min 
Activity 1  10 min 
Activity 2  15 min 
Activity 3  15 min 
Lesson Synthesis  10 min 
Cooldown  0 min 
Teacher Reflection Questions
Identify who has been sharing their ideas in class lately. Make a note of students whose ideas have not been shared and look for an opportunity for them to share their thinking in tomorrow’s lesson.
Print Formatted Materials
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Additional Resources
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