# Course: Math in Focus • Singapore Math • Grade 4 • Volume B • Common Core

• 7 Decimals
• 1 Understanding Tenths
• 2 Understanding Hundredths
• 3 Comparing Decimals
• 4 Rounding Decimals
• 5 Fractions and Decimals
• 8 Adding and Subtracting Decimals
• 2 Subtracting Decimals
• 3 Real-World Problems: Decimals
• 9 Angles
• 1 Understanding and Measuring Angles
• 2 Drawing Angles to 180°
• 3 Turns and Angle Measures
• 10 Perpendicular and Parallel Line Segments
• 1 Drawing Perpendicular Line Segments
• 2 Drawing Parallel Line Segments
• 3 Horizontal and Vertical Lines
• 11 Squares and Rectangles
• 1 Squares and Rectangles
• 2 Properties of Squares and Rectangles
• 12 Conversion of Measurements
• 1 Length
• 2 Mass, Weight, and Volume
• 3 Time
• 4 Real-World Problems: Measurement
• 13 Area and Perimeter
• 1 Area of a Rectangle
• 2 Rectangles and Squares
• 3 Composite Figures
• 4 Using Formulas for Area and Perimeter
• 14 Symmetry
• 1 Identifying Lines of Symmetry
• 2 Rotational Symmetry
• 3 Making Symmetric Shapes and Patterns
• 15 Tessellations
• 1 Identifying Tessellations
• 2 More Tessellations

Use Nagwa in conjunction with your preferred textbook. The recommended lessons from Nagwa for each section of this textbook are provided below. This course is not affiliated with, sponsored by, or endorsed by the publisher of the referenced textbook. Nagwa is a registered trademark of Nagwa Limited. All other trademarks and registered trademarks are the property of their respective owners.