Listed below, in the section for each unit, are links to learnzillion.com.  These are links to short video lessons on the mathematical content stated.

See Big Idea 2

# Unit 2 Multiplication with Whole Numbers

## Big Idea 3: Multiplication with Two-Digit Numbers (OA.3, NBT.2, and NBT.5)

See Big Idea 1 and 2

## Big Idea 4: Multiplication with Thousands (OA.3, NBT.2-3, NBT.5, and MD.2)

See Big Idea 1 and 2

# Unit 3  Division with Whole Numbers

## Solve division problems: using picture model (NBT.6)

Divide four-digit dividends (NBT.6)

## Big Idea 2:  Division Issues and Word Problems (OA.3, NBT.3, and NBT.6)

Divide four-digit dividends (NBT.6)

# Unit 4 Equations and Word Problems

## Big Idea 1:  Reasoning and Solving Problems (NBT.4-6 and MD.2)

Divide four-digit dividends (NBT.6)

## Big Idea 2:  Comparison Word Problems (OA.1-2)

The commutative property (OA.1)

## Big Idea 4:  Analyzing Patterns (OA.1-5, NBT.4-6, MD.2)

See Big Idea 1 and 2

See Big Idea 1

# Unit 6  Fraction Concepts and Operations

## Big Idea 1:  Fractions with Like Denominators (NF.2-4 and MD.2)

Add fractions by joining parts (4.NF.3a)

Decompose fractions (4.NF.3b)

Add unit fractions to make 1 whole (4.NF.3b)

Compare fractions: using pictures (4.NF.3d)

## Big Idea 2:  Mixed Numbers with Like Denominators (NF.2-3, MD.2, and MD.4)

Add fractions by joining parts (4.NF.3a)

Decompose fractions (4.NF.3b)

Add unit fractions to make 1 whole (4.NF.3b)

Compare fractions: using pictures (4.NF.3d)

# Unit 7 Fractions and Decimals

## Big Idea 1:  Comparing Fractions (NF.2)

Compare fractions with different numerators and denominators by multiplying or dividing by 1 (4.NF.2)

Understand the denominator (4.NF.2)

Understand the denominator (4.NF.2)

Create common denominators: finding the least common multiple and using equations (4.NF.2)