Learning Activity

Who is Correct?

Subject Area

Mathematics

Grade(s)

2

Overview

In the warm-up activity, students will read about Gavin and Chase, two students who disagree when they compare two 3-digit numbers. The students will decide who is correct and defend their thinking using their knowledge of place value and appropriate academic vocabulary.

Mathematics (2019) Grade(s): 2

MA19.2.9

Compare two three-digit numbers based on the value of the hundreds, tens, and ones digits, recording the results of comparisons with the symbols >, =, and < and orally with the words “is greater than,” “is equal to,” and “is less than.”

Unpacked Content

UP:MA19.2.9

Vocabulary

  • Equalities
  • Inequalities

Knowledge

Students know:
  • how to compare 3-digit numbers using the terminology "greater than," "equal to," and "less than".

Skills

Students are able to:
  • compare 3-digit numbers using place value concepts.
  • justify their reasoning as they compare numbers.

Understanding

Students understand that:
  • the three digits of a 3-digit number represent groups of hundreds, tens, and ones.

Phase

Before/Engage
Learning Objectives

Learning Objectives

I can compare two 3-digit numbers using the symbols <, >, and =.

Activity Details

  1. The teacher will display Who is Correct? journal prompt from the slideshow
  2. The teacher and students read the journal prompt together. The students will then take their note cards and explain their choice for the correct answer.
  3. After students have finished writing on their note cards, the teacher will ask for volunteers to share their explanations with a partner, group, or the whole class.
Assessment Strategies

Assessment Strategies

Teachers will observe student responses to determine student understanding of the concept and skill. You can use the following guidelines to ensure students meet the learning objective.

Check that the student:

  1. can use place value reasoning to determine which number is larger.
  2. can explain their thinking in writing and orally.

Variation Tips

  • This activity may be modified to accommodate all learners.
  • Two-digit numbers can be substituted for struggling learners.
  • Four-digit numbers can be substituted for enrichment.

Related Learning Activities

Learning Activity (Before)

Who is Correct?

Learning Activity (During)

M&Ms and Skittles

Learning Activity (After)

Greatest, Least, or Equal?

Background and Preparation

Background / Preparation

  • The teacher will need a computer and projector to display the journal prompt.
  • Each student will need a pencil and a notecard to record their responses.

Digital Tools / Resources

Who is Correct? Google Doc
https://docs.google.com/presentation/d/1woN__meyknEOH-dxkw9mtIVqjFZryHV4oVMLFX0…

Approved Date

Owner (Author)

mfrye
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