Reflection: Developing a Conceptual Understanding Estimation as a Strategy for Checking Work - Section 2: You are the Teacher

 

My students love to be the teacher and correct the work of some "other child" (me). I am hoping that students will be able to use place value as a way to construct a viable argument about why my work may or may not be correct (MP3). By asking students to correct the work of the imaginary child, they are forced to think about what the child has done, and if the answer is different from what they have found it to be, they must reason why it is different and how to fix it.

Students develop a better understanding of a mathematical process when they attempt to explain their thinking and to reason mathematically. This process of correcting the work of others encourages that deeper understanding of how a problem works.

  The Rewards of Being the Teacher
  Developing a Conceptual Understanding: The Rewards of Being the Teacher
Loading resource...
 

Estimation as a Strategy for Checking Work

Unit 18: Strategies That Work
Lesson 3 of 16

Objective: SWBAT use ballpark estimates to check the work of an imaginary student

Big Idea: Estimation can tell us if we are close in our answers to math problems. If we take the time to use it, we can see if our answer is in the right ballpark.

  Print Lesson
Add this lesson to your favorites
Subject(s):
Math, Number Sense and Operations, Operations , addition, subtraction, estimation, review
  40 minutes
screen shot 2014 06 01 at 10 44 31 pm
 
1
2
3
Similar Lessons
 
10, 20, 100 Day 2
1st Grade Math » Complements of 10 and 20
Big Idea: Students will use dice to roll a number and then find the complement to make 10, 20 or 100.
  Favorites(1)
  Resources(15)
Waitsfield, VT
Environment: Suburban
Thomas Young
 
Domino Addition: Understanding the Part/Part/Whole Relationship
2nd Grade Math » Addition and Subtraction Basic Training
Big Idea: The big idea of this lesson is the understanding that addition can be represented as parts of a whole and that we can use addition sentences to represent those parts.
  Favorites(19)
  Resources(20)
Pepperell, MA
Environment: Rural
Kristen O'Connor
 
Adding Several Integers
5th Grade Math » Targeted Skills Interventions
Big Idea: And, and, and, and...
  Favorites(0)
  Resources(9)
Grand Rapids, MI
Environment: Urban
Erin Doughty
 
Something went wrong. See details for more info
Nothing to upload
details
close