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# Homework Help Fourth Grade

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)

Decompose fractions: using addition (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)

Decompose fractions: using addition (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)