South Dakota Standards
SD.2.A. Algebra: Students will use the language of algebra to explore, describe, represent, and analyze number expressions and relations that represent variable quantities.
2.A.2. Use a variety of algebraic concepts and methods to solve equations and inequalities.
2.A.2.1. Comprehension: Students are able to use concepts of equal to, greater than, and less than to compare numbers (0-100).
2.A.2.1.b. Write the words less than or greater than between two numbers.
2.A.2.3. Application: Students are able to balance simple addition and subtraction equations using sums up to 20.
2.A.2.3.b. Describe strategies used in adding and subtracting.
2.A.4. Describe and apply the properties and behaviors of relations, functions and inverses.
2.A.4.1. Comprehension: Students are able to find and extend growing patterns using symbols, objects, and numbers.
2.A.4.1.b. Recognize and extend basic number patterns using a 0-99 or 1-100 charts.
SD.2.N. Number Sense: Students will develop and use number sense to investigate the characteristics of numbers in a variety of forms and modes of operation.
2.N.1. Analyze the structural characteristics of the real number system and its various subsystems. Analyze the concept of value, magnitude, and relative magnitude of real numbers.
2.N.1.1. Comprehension: Students are able to read, write, count, and sequence numerals to 100.
2.N.1.1.a. Say the forward and backward number word sequences in the range 0-100.
2.N.1.1.b. Say the number before and after a given number in the range 0-100.
2.N.1.1.d. Use one-to-one correspondence.
2.N.3. Develop conjectures, predictions, or estimations to solve problems and verify or justify the results.
2.N.3.1. Application: Students are able to solve addition and subtraction problems up to 100 in context.
2.N.3.1.a. Represent problem situations and solve using concrete objects, pictures, numbers, tables, or charts.