Grade 2 Math Samples

Non-Common Core

Algebraic Reasoning Unit

Algebraic Reasoning Unit

The Algebraic Reasoning Unit involves understanding number patterns within properties of numbers and operations in order to answer questions such as:

  • How can you prove this number is odd or even?
     
  • How can you use the relationship between addition and subtraction to solve problems in which the unknown may be any one of the terms in the equation?
     
  • Give an equation in which the unknown may be any one of its terms, how can you create a situation to match it? How can you prove that your situation matches the equation?
     
  • How can you show ___ is an even/odd number?
     
  • What strategies can you use to determine a number is odd or even?
     
  • What happens when you add two like odd or even numbers?

Common Core

2.OA.A.1

2.OA.A.1

Use addition and subtraction within 100 to solve one- and two-step word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using drawings and equations with a symbol for the unknown number to represent the problem.

TEKS (for Texas)

Algebraic Reasoning Unit

Algebraic Reasoning Unit

The Algebraic Reasoning Unit involves understanding number patterns within properties of numbers and operations in order to answer questions such as:

  • How can you prove this number is odd or even?
     
  • How can you use the relationship between addition and subtraction to solve problems in which the unknown may be any one of the terms in the equation?
     
  • Give an equation in which the unknown may be any one of its terms, how can you create a situation to match it? How can you prove that your situation matches the equation?

TEKS standards covered: 2.7A, 2.7C