# Compare Two Decimals Using , or =

This video explains how to compare two decimals using place value.

# Variables in Expressions and Equations

This video defines an expression and and equation. Then expressions are evaluated and the solutions to equations are considered.

# Equality Statements: Always, Sometimes, or Never True

This video explains how to determine if an equality statement or equation is always true, sometimes true, or never true.

# The Meaning of An Equal Sign: Equivalence or Calculation

This video explains how an equal sign can mean equivalence or to perform a calculation.

# Describe Sums and Differences of Integers (Common Core Math 7/8 Ex 19)

This video explains how to find sums and differences of integers and then describe them as greater than 0, less than 0, or equal to 0.

# Find Two Fractions with Different Denominator with a Given Sum (Common Core 5/6 Math Ex 19)

This video explains how to find two fractions with different denominators that have a given sum by modeling fractions.

# Find Two Fractions with Different Denominator with a Given Sum (Common Core 5/6 Math Ex 9)

This video explains how to find two fractions with different denominators that have a given sum by modeling fractions.