Exploring Rational Expressions in Grade 6 Mathematics

The video tutorial covers Grade 6, Module 5, Lesson 8 of Eureka Math, focusing on calculating the area of shaded regions in composite figures. The instructor guides students through determining the total area of a large rectangle and subtracting the areas of inner shapes to find the shaded region. The lesson emphasizes organizing calculations and using basic arithmetic operations to solve geometry problems. The tutorial concludes with practical tips for tackling similar math challenges.

What is the main focus of Grade 6 Module 5 Lesson 8?

• Studying geometric shapes

• Understanding fractions

• Calculating areas of composite figures

• Learning about angles

What must be true about all angles in the shapes discussed?

• They are reflex angles

• They are right angles

• They are obtuse angles

• They are acute angles

What is the first step in finding the area of the shaded region?

• Measure the sides of the shaded region

• Subtract the area of the inner shapes

• Calculate the area of the large rectangle

• Divide the shape into smaller rectangles

How do you find the area of a rectangle?

• Length x Width

• Length / Width

• (Length + Width) x 2

• Length + Width

What is the area of the large rectangle?

• 12 cm squared

• 132 cm squared

• 48 cm squared

• 180 cm squared

How is the area of the shaded region found?

• Dividing the area of the large rectangle by the inner shapes

• Subtracting the areas of the inner shapes from the large rectangle

• Multiplying the areas of the inner shapes

• Adding the areas of the inner shapes

What mathematical operation is primarily used to find the area of the shaded region?

• Addition

• Subtraction

• Multiplication

• Division

What is the area of rectangle B?

• 180 cm squared

• 36 cm squared

• 12 cm squared

• 48 cm squared

What is the area of rectangle C?

• 180 cm squared

• 12 cm squared

• 36 cm squared

• 48 cm squared

What is the final area of the shaded region?

• 180 cm squared

• 48 cm squared

• 132 cm squared

• 12 cm squared