MathIsimple
Unit 2

Addition & Subtraction within 20

Master addition and subtraction concepts, strategies, and problem-solving with numbers up to 20

Strategy FocusedVisual LearningProblem SolvingInteractive Tools

Four Comprehensive Lessons

Each lesson builds upon the previous one, developing strong addition and subtraction skills

Lesson 2-1: Addition & Subtraction Concepts

Lesson 1

Learn the fundamental concepts of addition and subtraction through visual representations and real-world scenarios.

Topics Covered:

Addition Concepts
Subtraction Concepts
Visual Representations
Real-world Applications

Interactive Features:

Interactive visual tools
Scenario-based learning
Concept reinforcement
Progress tracking

Lesson 2-2: Within 10 Operations

Lesson 2

Master addition and subtraction with numbers up to 10 using number lines and visual aids.

Topics Covered:

Number Line Operations
Within 10 Addition
Within 10 Subtraction
Make 10 Combinations

Interactive Features:

Number line tools
Make 10 combinations
Visual calculations
Interactive practice

Lesson 2-3: Make 10 Strategy

Lesson 3

Learn the powerful make 10 strategy for addition problems within 20.

Topics Covered:

Make 10 Strategy
Addition within 20
Visual Tools
Strategy Practice

Interactive Features:

Step-by-step strategy
Visual demonstrations
Practice exercises
Strategy mastery

Lesson 2-4: Subtraction Strategies

Lesson 4

Master subtraction strategies including decomposition and inverse operations.

Topics Covered:

Decomposition Strategy
Inverse Operations
Subtraction within 20
Problem Solving

Interactive Features:

Multiple strategies
Visual tools
Problem-solving practice
Strategy selection

Learning Objectives

By the end of this unit, students will be able to:

Addition Concepts

Understand addition as combining and adding to

Subtraction Concepts

Understand subtraction as taking away and comparing

Make 10 Strategy

Master the make 10 strategy for efficient addition

Problem Solving

Apply strategies to solve real-world problems