Math for Grade 4
1 Number Sense and Operations
1-1 Place Value
1-1 1 Understanding place value through millions
1-1 2 Reading and writing numbers in standard, word, and expanded form
1-1 3 Comparing and ordering numbers
1-2 Rounding and Estimating
1-2 1 Rounding numbers to the nearest 10, 100, and 1000
1-2 2 Estimating sums, differences, products, and quotients
1-3 Addition and Subtraction
1-3 1 Adding and subtracting multi-digit numbers
1-3 2 Solving word problems involving addition and subtraction
1-4 Multiplication and Division
1-4 1 Multiplication tables up to 12
1-4 2 Multiplying multi-digit numbers by one-digit numbers
1-4 3 Dividing multi-digit numbers by one-digit numbers
1-4 4 Solving word problems involving multiplication and division
1-5 Factors and Multiples
1-5 1 Identifying factors and multiples of a number
1-5 2 Finding the greatest common factor (GCF)
1-5 3 Finding the least common multiple (LCM)
2 Fractions and Decimals
2-1 Understanding Fractions
2-1 1 Identifying and naming fractions
2-1 2 Comparing and ordering fractions with like and unlike denominators
2-1 3 Equivalent fractions
2-2 Operations with Fractions
2-2 1 Adding and subtracting fractions with like denominators
2-2 2 Solving word problems involving fractions
2-3 Understanding Decimals
2-3 1 Reading and writing decimals to the hundredths place
2-3 2 Comparing and ordering decimals
2-4 Operations with Decimals
2-4 1 Adding and subtracting decimals
2-4 2 Solving word problems involving decimals
3 Geometry and Measurement
3-1 Basic Shapes and Properties
3-1 1 Identifying and classifying 2D shapes (triangles, quadrilaterals, etc )
3-1 2 Identifying and classifying 3D shapes (cubes, pyramids, etc )
3-2 Perimeter and Area
3-2 1 Finding the perimeter of polygons
3-2 2 Finding the area of rectangles and squares
3-3 Lines and Angles
3-3 1 Identifying and measuring angles using a protractor
3-3 2 Classifying angles (acute, obtuse, right, straight)
3-4 Time and Measurement
3-4 1 Telling time to the nearest minute
3-4 2 Solving word problems involving time
3-4 3 Measuring length, weight, and capacity using standard units
4 Data Handling and Probability
4-1 Collecting and Organizing Data
4-1 1 Creating and interpreting bar graphs, line plots, and pictographs
4-1 2 Collecting and organizing data in tables
4-2 Analyzing Data
4-2 1 Finding the mode, median, and range of a set of data
4-2 2 Interpreting data from graphs and tables
4-3 Introduction to Probability
4-3 1 Understanding the concept of probability
4-3 2 Predicting outcomes based on data
5 Problem Solving and Critical Thinking
5-1 Strategies for Problem Solving
5-1 1 Using logical reasoning to solve problems
5-1 2 Applying the four operations to solve multi-step problems
5-2 Patterns and Relationships
5-2 1 Identifying and extending number patterns
5-2 2 Understanding and using simple algebraic expressions
5-3 Critical Thinking and Reasoning
5-3 1 Evaluating and justifying solutions to problems
5-3 2 Making connections between different mathematical concepts
Problem Solving and Critical Thinking

Problem Solving and Critical Thinking

Key Concepts

Problem solving and critical thinking are essential skills that involve analyzing situations, making decisions, and finding solutions. Key concepts include:

Identifying the Problem

The first step in problem solving is to clearly identify what the problem is. This involves understanding the situation and defining the issue that needs to be resolved.

Example: If you are trying to solve a math problem, first read the question carefully to understand what is being asked.

Breaking Down the Problem

Once the problem is identified, it needs to be broken down into smaller, more manageable parts. This makes the problem easier to tackle and understand.

Example: For a complex math problem, break it down into steps such as finding the area, then the perimeter, and finally solving for the unknown variable.

Using Logical Reasoning

Logical reasoning involves using facts, rules, and principles to make decisions and find solutions. This step requires thinking through each part of the problem logically.

Example: In a word problem, use logical reasoning to determine which operations (addition, subtraction, multiplication, division) are needed to solve the problem.

Evaluating Solutions

After finding potential solutions, evaluate each one to determine which is the most effective and appropriate. This involves considering the pros and cons of each solution.

Example: If you have multiple ways to solve a math problem, check each method to see which one gives the correct answer and is the most efficient.

Reflecting on the Process

Finally, reflect on the problem-solving process to understand what worked and what didn’t. This helps in improving future problem-solving skills.

Example: After solving a math problem, reflect on the steps you took. Did you understand the problem correctly? Were your calculations accurate? How could you improve next time?

Examples and Analogies

Think of problem solving as building a puzzle. First, you identify the pieces you need (identifying the problem). Then, you sort the pieces into categories (breaking down the problem). Next, you fit the pieces together logically (using logical reasoning). After completing the puzzle, you check if it looks right (evaluating solutions). Finally, you think about how you solved the puzzle and how you can do it better next time (reflecting on the process).

Example: If you are trying to solve a word problem about distance, first identify the key pieces of information (identifying the problem). Break it down into steps like finding the speed and time (breaking down the problem). Use the formula for distance (using logical reasoning). Check if your answer makes sense (evaluating solutions). Reflect on whether you used the best method (reflecting on the process).

Practical Application

Understanding problem solving and critical thinking is essential for everyday tasks such as making decisions, solving puzzles, and completing assignments. These skills help in finding effective solutions to various challenges.