# Standards-Aligned Resources for Your Classroom

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### Kiddom Supports All Standards, Including G.CO.9

Common Core Mathematics Standards

### G.CO.9

Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segment’s endpoints.

## View Standards Related toG.CO.9

### N.RN.1

Explain how the definition of the meaning of rational exponents follows from extending the properties of integer exponents to those values, allowing for a notation for radicals in terms of rational exponents. For example, we define 51/3 to be the cube root of 5 because we want (51/3)3 = 5(1/3)3 to hold, so (51/3)3 must equal 5.
View N.RN.1

### N.RN.2

Rewrite expressions involving radicals and rational exponents using the properties of exponents.
View N.RN.2

### N.RN.3

Explain why the sum or product of two rational numbers is rational; that the sum of a rational number and an irrational number is irrational; and that the product of a nonzero rational number and an irrational number is irrational.
View N.RN.3

### N.Q .1

Use units as a way to understand problems and to guide the solution of multi-step problems; choose and interpret units consistently in formulas; choose and interpret the scale and the origin in graphs and data displays.
View N.Q .1

### N.Q .2

Define appropriate quantities for the purpose of descriptive modeling.
View N.Q .2
View All Common Core Mathematics Standards

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