True and False Number Strings

Grade Level(s):  Kindergarten – 8^th Grade

Content Area:                                                                        Process Area:

Numbers and Operations                                           Problem-Solving

Algebra                                                           Reasoning and Proof

Geometry                                                                    Communication

Measurement                                                             Representation

Data Analysis, Statistics, and Probability                    Connections

Common Core Standards:

CCSS.MATH.CONTENT.1.OA.D.7: Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false. For example, which of the following equations are true and which are false? 6 = 6, 7 = 8 - 1, 5 + 2 = 2 + 5, 4 + 1 = 5 + 2.

Targeted Needs of Student:

Understanding the importance and meaning of the equal sign, understanding balancing equations, thinking critically about math

Goal:

Providing explanation of the equal sign and how to balance both sides of the equation.

Materials Needed:

1. Paper and pencil
2. Whiteboard and expo marker

Explanation/Summary:

To understand the sides of the decimal, the teacher will show the beginning statement of a number equaling itself (such as 6 = 6) and then they will decompose the number to show that the equation can be written a different way while still meaning the same thing. Each time that they write a new equation, the teacher will discuss with the students if that statement is true or false.

6 = 6

6 = 4 + 2

4 + 2 = 4 + 2

4 + 2 = 1 + 5

Resource:

Shared at the NCCTM Conference