Topic 2 Lessons 2-5 and 2-6 Vocabulary

the distance from zero on a number line. Distance is always positive.

• Absolute Value

• Perimeter

• Area

the amount of space taken up by a 2D shape or surface. We measure the area in square units : ft². It is calculated by multiplying the length of a shape by its width.

• Absolute Value

• Perimeter

• Area

the distance around the edge of a shape. It is found by adding together the lengths of each side of a shape.

• Absolute Value

• Perimeter

• Area

a flat, two-dimensional (2D) shape with straight sides that is fully closed (all the sides are joined up)

• Heart

• Circle

• Polygon

x-coordinate is positive, and y-coordinate is positive (+,+)

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

x-coordinate is positive, and y-coordinate is negative (+,-)

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

x-coordinate is negative, and y-coordinate is positive (-,+)

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV

x-coordinate is negative, and y-coordinate is negative (-,-)

• Quadrant I

• Quadrant II

• Quadrant III

• Quadrant IV