Here is the standard on which your child is working in math.
6th grade math is covering standards:
NS 5. Understand that positive and negative numbers are used together to describe quantities having
opposite directions or values (e.g., temperature above/below zero, elevation above/below sea level,
credits/debits, positive/negative electric charge); use positive and negative numbers to represent
quantities in real-world contexts, explaining the meaning of 0 in each situation.
NS 6. Understand a rational number as a point on the number line. Extend number line diagrams and
coordinate axes familiar from previous grades to represent points on the line and in the plane with
negative number coordinates.
a. Recognize opposite signs of numbers as indicating locations on opposite sides of 0 on the
number line; recognize that the opposite of the opposite of a number is the number itself, e.g., –
(–3) = 3, and that 0 is its own opposite.
b. Understand signs of numbers in ordered pairs as indicating locations in quadrants of the
coordinate plane; recognize that when two ordered pairs differ only by signs, the locations of the
points are related by reflections across one or both axes.
c. Find and position integers and other rational numbers on a horizontal or vertical number line
diagram; find and position pairs of integers and other rational numbers on a coordinate plane.
NS 7. Understand ordering and absolute value of rational numbers.
a. Interpret statements of inequality as statements about the relative position of two numbers on a
number line diagram. For example, interpret –3 > –7 as a statement that –3 is located to the right
of –7 on a number line oriented from left to right.
b. Write, interpret, and explain statements of order for rational numbers in real-world contexts. For
example, write –3 oC > –7 oC to express the fact that –3 oC is warmer than –7 oC.
c. Understand the absolute value of a rational number as its distance from 0 on the number line;
interpret absolute value as magnitude for a positive or negative quantity in a real-world situation.
For example, for an account balance of –30 dollars, write |–30| = 30 to describe the size of the
debt in dollars.
d. Distinguish comparisons of absolute value from statements about order. For example, recognize
that an account balance less than –30 dollars represents a debt greater than 30 dollars.
NS 8. Solve real-world and mathematical problems by graphing points in all four quadrants of the
coordinate plane. Include use of coordinates and absolute value to find distances between points with
the same first coordinate or the same second coordinate.