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Stage 2

Objectives
  • Represent addition and subtraction with models and expressions
  • Add and subtract within 20
  • Understand and apply special properties of addition and subtraction
  • Comprehend word problems to represent them using addition and subtraction expressions
  • Comprehend and solve word problems requiring addition and subtract involving two and three numbers
  • Understand the concept of equations involving addition and subtraction
  • Solve problems involving multiple addition and subtraction expressions or equations
  • Understand the relationship between addition and subtraction and apply them to solve problems
Unit 1: Introduction to addition

Students learn about addition. Concepts learned in this unit include adding with the aid of pictures, horizontal and vertical addition, and addition expressions and sentences.

Unit Review
  1. Addition up to 10
  2. Addition expression
  3. Addition of two numbers - sum to 10
  4. Addition of two numbers - sum to 18
  5. Addition of three numbers - sum to 18
  6. Property of addition - commutative property
Unit 2: Addition - word problems

Students learn to comprehend simple word problems and apply addition skills to solve them.

Unit Review
  1. Solve using addition
  2. Addition expression from description
  3. Solve using addition - 3 numbers
Unit 3: Addition - critical thinking

Students learn to solve problems related to addition skills.

Unit Review
  1. Match answer with addition expression
  2. Match addition expressions
  3. Addition - Find the missing number
  4. Identify addition rule
  5. Select numbers to make a sum
Unit 4: Addition - mental addition

Students practice addition problems to improve the their ability to add quickly and accurately.

Unit Review
  1. Addition with number up to 3
  2. Addition with number up to 6
  3. Addition with number up to 10
  4. Add multiples of ten
  5. Add a single-digit number to a multiple of ten
Unit 5: Introduction to subtraction

Students learn about subtraction. Concepts learned in this unit include subtraction with the aid of pictures, horizontal and vertical subtraction, and subtraction expressions and sentences.

Unit Review
  1. Subtraction of numbers up to 9
  2. Subtraction expression
  3. Subtraction of two single-digit numbers
  4. Subtraction of two numbers up to 18 - without carry over
  5. Subtraction of two numbers up to 18 - with or without carry over
  6. Subtraction - related facts
  7. Subtraction with zero and subtraction of number from itself
Unit 6: Subtraction - word problems

Students learn to comprehend simple word problems and apply subtraction skills to solve them.

Unit Review
  1. Solve using subtraction
  2. Subtraction expression from description
Unit 7: Subtraction - critical thinking

Students learn to solve problems using subtraction skills.

Unit Review
  1. Match answer with subtraction expression
  2. Match subtraction expressions
  3. Identify subtraction rule
  4. Subtraction - Find the missing number
  5. Select numbers to make a difference
Unit 8: Subtraction - mental subtraction

Students practice subtraction problems to improve the their ability to subtract quickly and accurately.

Unit Review
  1. Subtraction with up to 3
  2. Subtraction with up to 6
  3. Subtraction with up to 10
Unit 9: Addition and subtraction of single-digit numbers

Students practice addition and subtraction of single-digit numbers.

Unit Review
  1. Addition and subtraction fact families
  2. Add and subtract single-digit numbers
  3. Addition and subtraction expressions: word form
  4. Addition and subtraction expressions from description
  5. Solve using addition and subtraction
  6. Choose correct expression
  7. Identify addition or subtraction rule
  8. Find the missing number or operation