In this Grade 6 Saxon Math Course 1 lesson, students learn how to calculate the area of rectangles and squares by multiplying length by width and expressing answers in square units such as square inches, square feet, and square centimeters. The lesson distinguishes area from perimeter and introduces the concept of square units as a measurement of surface. Students also practice working backward from a known area to find the side length and perimeter of a square.
Section 1
📘 Areas of Rectangles
The area of a shape is the amount of surface enclosed by its sides. We calculate a rectangle's area by multiplying its length and width.
This is just the beginning of measuring surfaces. Next, you'll solve problems to find the area of rectangles and squares, and even work backward to find side lengths.
Section 2
Area
The area of a shape is the amount of surface enclosed by its sides. We measure area in square units.
Think of area as the amount of paint needed to cover a wall or the number of square tiles to cover a floor. While perimeter measures the distance around a shape, area measures the total space inside it. We use special units like square feet or square meters to count up all that interior space accurately.
Section 3
Area of a Rectangle
To find the area of a rectangle, use the formula:
Instead of counting every single square unit inside a rectangle one by one, there's a fantastic shortcut! Just multiply the length of the rectangle by its width. This calculation instantly tells you how many square units are needed to fill the entire shape. It's the quickest way to find the total space inside any rectangle.
Section 4
Finding a Square's Side from its Area
If you know the area of a square, you can find its side length by figuring out which number, when multiplied by itself, equals the area.
This is like solving a puzzle in reverse! Since a square's length and width are identical, its area is simply side × side. So, if a square has an area of 25 square units, you just ask yourself, 'What number times itself makes 25?' The answer, 5, is the length of each side. It's a neat trick!
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Section 1
📘 Areas of Rectangles
The area of a shape is the amount of surface enclosed by its sides. We calculate a rectangle's area by multiplying its length and width.
This is just the beginning of measuring surfaces. Next, you'll solve problems to find the area of rectangles and squares, and even work backward to find side lengths.
Section 2
Area
The area of a shape is the amount of surface enclosed by its sides. We measure area in square units.
Think of area as the amount of paint needed to cover a wall or the number of square tiles to cover a floor. While perimeter measures the distance around a shape, area measures the total space inside it. We use special units like square feet or square meters to count up all that interior space accurately.
Section 3
Area of a Rectangle
To find the area of a rectangle, use the formula:
Instead of counting every single square unit inside a rectangle one by one, there's a fantastic shortcut! Just multiply the length of the rectangle by its width. This calculation instantly tells you how many square units are needed to fill the entire shape. It's the quickest way to find the total space inside any rectangle.
Section 4
Finding a Square's Side from its Area
If you know the area of a square, you can find its side length by figuring out which number, when multiplied by itself, equals the area.
This is like solving a puzzle in reverse! Since a square's length and width are identical, its area is simply side × side. So, if a square has an area of 25 square units, you just ask yourself, 'What number times itself makes 25?' The answer, 5, is the length of each side. It's a neat trick!
Book overview
Jump across lessons in the current chapter without opening the full course modal.
Continue this chapter