## Reflection: Building Towers - Section 3: Center Time

While I was walking around observing students playing both station activities, I saw a team playing 20 Beans.  The team was using the 20 Frame in two different ways.  One of the students (the girl) was using it to count on from 5 and the boy was using his knowledge of 10 to solve for 9.  The video below reflects their thinking.  I also had them share their thinking with the class in the lesson wrap up (there is a separate video for that).

Reflection
Reflection

# Building Towers

Unit 3: Counting & Comparing
Lesson 1 of 7

## Objective: SWBAT count a set of up to 20 objects by 1's. SWBAT use number names and written numbers to label the quantities they represent. SWBAT order a set of numbers and quantities up to 12.

### Thomas Young

203 Lessons14 new

## Big Idea: Get out your toolboxes and heavy machinery because today your are going to be Building Towers! Using vocabulary words like least,greatest, and "in order," the students will build cube towers of designated heights and then be asked to put them in order

Print Lesson
13 teachers like this lesson
Standards:
Subject(s):
65 minutes

### Thomas Young

203 Lessons | 14 new

##### Similar Lessons

Big Idea: Movin’ on up! Counting on is a strategy that can help foster mental math skills.
Favorites(10)
Resources(12)
Lakeland, FL
Environment: Urban

###### Act it out!
1st Grade Math » Creating a Culture of Math
Big Idea: Students solve problems and begin to explore the "counting on" strategy!
Favorites(4)
Resources(15)
New Orleans, LA
Environment: Urban

###### Life-size Missing Parts of 9
1st Grade Math » Understanding Subtraction
Big Idea: I want them to develop fluency in subtraction and get them ready for future standards like 1.NBT.C.6, double digit subtraction. This can be done by providing them multiple opportunities to problem solve.
Favorites(1)
Resources(15)
Oklahoma City, OK
Environment: Urban