Explore Library
Create a Lessn
Select Grade
Pre-K
Kindergarten
First Grade
Second Grade
Third Grade
Fourth Grade
Fifth Grade
Sixth Grade
Seventh Grade
Eighth Grade
High school
Select Subject
Arts and humanities
Economics
Language arts
Life skills
Math
Science
Social Studies
Login
Register
Login
Register
Explore Library
Create a Lessn
Select Grade
Pre-K
Kindergarten
First Grade
Second Grade
Third Grade
Fourth Grade
Fifth Grade
Sixth Grade
Seventh Grade
Eighth Grade
High school
Select Subject
Arts and humanities
Economics
Language arts
Life skills
Math
Science
Social Studies
Explore Lessn Library
Filters
Filters
World History Project Ap
Global Conflict
Arts and humanities
High school
View Presentation
Biology
Common Ancestry And Phylog...
Science
High school
View Presentation
Constitution 101
Civil Dialogue The Constit...
Arts and humanities
High school
View Presentation
Health & Medicine
Introduction To Human Body...
Science
High school
View Presentation
Grammar
Syntax: Conventions Of Sta...
Language arts
High school
View Presentation
Electrical Engineering
Semiconductor Devices
Science
High school
View Presentation
World History Project - Origins To The Present
Era 4 Regional Webs (200 T...
Arts and humanities
High school
View Presentation
Art History
Ancient Mediterranean + Eu...
Arts and humanities
High school
View Presentation
Microeconomics
Forms Of Competition
Economics
High school
View Presentation
Chemistry
States Of Matter
Science
High school
View Presentation
Finance And Capital Markets
Options Swaps Futures Mbss...
Economics
High school
View Presentation
Finance And Capital Markets
Money Banking And Central ...
Economics
High school
View Presentation
Select Filter
Select Subjects
Subject Filter CheckBox
Arts and humanities
(
0
)
Economics
(
0
)
Language arts
(
0
)
Life skills
(
0
)
Math
(
0
)
Science
(
0
)
Social studies
(
0
)
Select Grades
Grade filter Checkbox
Eighth grade
(
0
)
Fifth grade
(
0
)
First grade
(
0
)
Fourth grade
(
0
)
High school
(
0
)
Kindergarten
(
0
)
Pre-k
(
0
)
Second grade
(
0
)
Seventh grade
(
0
)
Sixth grade
(
0
)
Third grade
(
0
)
Select Topics
Select Topics
TopicCheckboxFilter
2
(
0
)
20Th Century American History
(
0
)
3
(
0
)
4
(
0
)
5
(
0
)
Abbreviations
(
0
)
Active And Passive Voice
(
0
)
Adaptations
(
0
)
Adaptations And Natural Selection
(
0
)
Add And Subtract Decimals
(
0
)
Add And Subtract Fractions
(
0
)
Add And Subtract Fractions With Like Denominators
(
0
)
Add And Subtract Fractions With Unlike Denominators
(
0
)
Add And Subtract Mixed Numbers
(
0
)
Add And Subtract Money Up To $1
(
0
)
Add And Subtract Whole Numbers
(
0
)
Addition
(
0
)
Addition And Subtraction
(
0
)
Addition And Subtraction Up To 10
(
0
)
Addition And Subtraction Up To 20
(
0
)
Addition And Subtraction Word Problems Up To 10
(
0
)
Addition And Subtraction Word Problems Up To 20
(
0
)
Addition And Subtraction: Multiples Of Ten
(
0
)
Addition Properties
(
0
)
Addition Strategies Up To 10
(
0
)
Addition Strategies Up To 20
(
0
)
Addition Strategies: One Digit
(
0
)
Addition Strategies: Three Digits
(
0
)
Addition Strategies: Two Digits
(
0
)
Addition Up To 10
(
0
)
Addition Up To 20
(
0
)
Addition Up To 5
(
0
)
Addition Word Problems Up To 10
(
0
)
Addition Word Problems Up To 20
(
0
)
Addition Word Problems Up To 5
(
0
)
Addition: Four Or Five Digits
(
0
)
Addition: One Digit
(
0
)
Addition: Three Digits
(
0
)
Addition: Two Digits
(
0
)
Adjectives
(
0
)
Adjectives And Adverbs
(
0
)
Adjectives And Verbs
(
0
)
Africa: Geography
(
0
)
Africa: Society And Environment
(
0
)
African Empires
(
0
)
Age Of Exploration
(
0
)
American National Holidays
(
0
)
American Symbols And Landmarks
(
0
)
American Symbols, Landmarks, And Monuments
(
0
)
Analogies
(
0
)
Analyzing Arguments
(
0
)
Analyzing Informational Texts
(
0
)
Analyzing Literature
(
0
)
Anatomy And Physiology
(
0
)
Ancient Egypt And Kush
(
0
)
Ancient Mesopotamia
(
0
)
Ancient South Asia
(
0
)
Angle Measurement
(
0
)
Animals
(
0
)
Antonyms
(
0
)
Ap /College Art History
(
0
)
Ap /College Microeconomics
(
0
)
Ap /College Us Government And Politics
(
0
)
Ap /College Us History
(
0
)
Ap College Macroeconomics
(
0
)
Area
(
0
)
Area And Tiling
(
0
)
Art History
(
0
)
Articles
(
0
)
Asia: Geography
(
0
)
Asia: Society And Environment
(
0
)
Astronomy
(
0
)
Atoms And Molecules
(
0
)
Author'S Purpose
(
0
)
Author'S Purpose And Tone
(
0
)
Banking And Finance
(
0
)
Basic Economic Principles
(
0
)
Beginning And Ending Sounds
(
0
)
Big History Project
(
0
)
Biochemistry
(
0
)
Biology
(
0
)
Blending And Segmenting
(
0
)
Blends, Digraphs, And Trigraphs
(
0
)
Calendars
(
0
)
Capitalization
(
0
)
Categories
(
0
)
Cause And Effect
(
0
)
Cells
(
0
)
Changes Of State
(
0
)
Chemical Reactions
(
0
)
Chemistry
(
0
)
Cities
(
0
)
Citizenship
(
0
)
Civics
(
0
)
Classification
(
0
)
Classification And Scientific Names
(
0
)
Classify
(
0
)
Classifying And Sorting
(
0
)
Colonial America
(
0
)
Color And Number Words
(
0
)
Commas
(
0
)
Community
(
0
)
Compare And Order Fractions
(
0
)
Compare Decimals
(
0
)
Compare Decimals And Fractions
(
0
)
Compare Fractions
(
0
)
Compare Fractions In Recipes
(
0
)
Compare Fractions With Like Denominators
(
0
)
Compare Fractions With Like Numerators
(
0
)
Compare Groups
(
0
)
Compare Numbers
(
0
)
Comparing
(
0
)
Comparing Ancient River Civilizations
(
0
)
Comparing And Ordering
(
0
)
Comparing Texts
(
0
)
Comparing Up To 10
(
0
)
Comparing Up To 100
(
0
)
Comparing Up To 5
(
0
)
Comparison Word Problems Up To 10
(
0
)
Comparison Word Problems Up To 20
(
0
)
Complete The Equation
(
0
)
Compound Words
(
0
)
Congruence And Similarity
(
0
)
Conjunctions
(
0
)
Conservation
(
0
)
Conservation And Natural Resources
(
0
)
Consonant Blends And Digraphs
(
0
)
Consonant-L-E
(
0
)
Consonants And Vowels
(
0
)
Constitution 101
(
0
)
Constitution 102
(
0
)
Constitution 103
(
0
)
Constitution 104
(
0
)
Constitution 105
(
0
)
Constitution 106
(
0
)
Constitution 107
(
0
)
Constitution 108
(
0
)
Constitution 109
(
0
)
Consumer Math
(
0
)
Context Clues
(
0
)
Contractions
(
0
)
Convert Between Decimals And Fractions
(
0
)
Coordinate Plane
(
0
)
Cosmology And Astronomy
(
0
)
Count Tens And Ones - Up To 20
(
0
)
Counting
(
0
)
Counting By Tens
(
0
)
Counting Forward And Back To 10
(
0
)
Counting Forward And Back To 20
(
0
)
Counting To 10
(
0
)
Counting To 100
(
0
)
Counting To 120
(
0
)
Counting To 20
(
0
)
Counting To 3
(
0
)
Counting To 5
(
0
)
Cultural Celebrations
(
0
)
Customary Units Of Length
(
0
)
Customary Units Of Measurement
(
0
)
Dashes, Hyphens, And Ellipses
(
0
)
Data And Graphs
(
0
)
Days, Months, And Seasons
(
0
)
Decimal Place Value
(
0
)
Decimals
(
0
)
Density
(
0
)
Describe Flat Shapes
(
0
)
Descriptive And Creative Writing
(
0
)
Descriptive Details
(
0
)
Designing Experiments
(
0
)
Diphthongs: Oi, Oy, Ou, Ow
(
0
)
Direct And Indirect Objects
(
0
)
Direct Variation
(
0
)
Distinguish Facts From Opinions
(
0
)
Divide By One-Digit Numbers
(
0
)
Divide Decimals
(
0
)
Divide Decimals By Powers Of Ten
(
0
)
Divide Fractions
(
0
)
Divide Unit Fractions And Whole Numbers
(
0
)
Divide Whole Numbers
(
0
)
Division
(
0
)
Division Fluency Up To 10
(
0
)
Division Fluency Up To 12
(
0
)
Division Skill Builders
(
0
)
Division Word Problems
(
0
)
Domain-Specific Vocabulary
(
0
)
Early 19Th Century American History
(
0
)
Early Americas
(
0
)
Early China
(
0
)
Early Modern Europe
(
0
)
Earth Events
(
0
)
Earth'S Features
(
0
)
Earth'S Resources
(
0
)
Earth'S Systems
(
0
)
Ecological Interactions
(
0
)
Economics
(
0
)
Ecosystems
(
0
)
Editing And Revising
(
0
)
Elapsed Time
(
0
)
Electrical Engineering
(
0
)
Electricity
(
0
)
Electricity And Magnets
(
0
)
Energy Transformation
(
0
)
Engineering Practices
(
0
)
English Colonies In North America
(
0
)
Equations With Unknown Numbers
(
0
)
Equivalent Expressions
(
0
)
Equivalent Fractions
(
0
)
Estimate Differences
(
0
)
Estimate Sums
(
0
)
Estimate Sums And Differences
(
0
)
Estimation And Rounding
(
0
)
Europe: Geography
(
0
)
Europe: Society And Environment
(
0
)
Even And Odd
(
0
)
Exponents
(
0
)
Expository Writing
(
0
)
Expressions
(
0
)
Factors And Multiples
(
0
)
Factors, Multiples, And Divisibility
(
0
)
Finance And Capital Markets
(
0
)
Financial Literacy
(
0
)
Flat Shapes
(
0
)
Force And Motion
(
0
)
Formatting
(
0
)
Fossils
(
0
)
Fraction Word Problems
(
0
)
Fractions
(
0
)
Fractions And Decimals
(
0
)
Fractions And Mixed Numbers
(
0
)
Fractions Equivalent To Whole Numbers
(
0
)
Fractions Of Shapes
(
0
)
Fractions On Number Lines
(
0
)
Function Concepts
(
0
)
Genes To Traits
(
0
)
Geography
(
0
)
Government
(
0
)
Grammar
(
0
)
Greece
(
0
)
Greek And Latin Roots
(
0
)
Health & Medicine
(
0
)
Heat
(
0
)
Heat And Thermal Energy
(
0
)
Heating And Cooling
(
0
)
Heredity
(
0
)
Historical Figures
(
0
)
Homophones
(
0
)
Human Impacts
(
0
)
Identify The Irregular Past Tense
(
0
)
Idioms
(
0
)
Idioms And Adages
(
0
)
Inference
(
0
)
Inference And Analysis
(
0
)
Informational Texts: Level 1
(
0
)
Informational Texts: Level 2
(
0
)
Integers
(
0
)
Internet Safety
(
0
)
Interpret Functions
(
0
)
Introductions And Conclusions
(
0
)
Irregular Words
(
0
)
Islamic Empires
(
0
)
Kinetic And Potential Energy
(
0
)
Lab Tools And Equipment
(
0
)
Letter Identification
(
0
)
Letter-Sound Associations
(
0
)
Letter-Sound Associations: Lowercase
(
0
)
Letter-Sound Associations: Uppercase
(
0
)
Light And Sound
(
0
)
Linear Equations
(
0
)
Linear Functions
(
0
)
Lines And Angles
(
0
)
Linking Words
(
0
)
Literary Devices
(
0
)
Literary Texts: Level 1
(
0
)
Literary Texts: Level 2
(
0
)
Location Words
(
0
)
Long Vowel Patterns
(
0
)
Long Vowels
(
0
)
Lowercase And Uppercase Letters
(
0
)
Macroeconomics
(
0
)
Magnets
(
0
)
Main Idea
(
0
)
Maps
(
0
)
Match Causes With Effects
(
0
)
Materials
(
0
)
Matter And Mass
(
0
)
Measurement
(
0
)
Measurement Word Problems
(
0
)
Medieval Asia
(
0
)
Medieval Europe
(
0
)
Metric Units Of Length
(
0
)
Metric Units Of Measurement
(
0
)
Microeconomics
(
0
)
Misplaced Modifiers
(
0
)
Mixed Numbers
(
0
)
Mixed Operation Word Problems
(
0
)
Mixed Operations
(
0
)
Mixed Operations Word Problems: One Digit
(
0
)
Mixed Operations Word Problems: Two Digits
(
0
)
Mixed Operations: Addition And Subtraction
(
0
)
Mixed Operations: Decimals
(
0
)
Mixed Operations: Fractions
(
0
)
Mixed Operations: Multiplication And Division
(
0
)
Mixed Operations: One Digit
(
0
)
Mixed Operations: Three Digits
(
0
)
Mixed Operations: Two Digits
(
0
)
Mixed Operations: Whole Numbers
(
0
)
Mixtures
(
0
)
Money
(
0
)
Money Up To $1
(
0
)
Money Up To $5
(
0
)
Multi-Step Word Problems
(
0
)
Multiple-Meaning Words
(
0
)
Multiplication
(
0
)
Multiplication Fluency Up To 10
(
0
)
Multiplication Fluency Up To 12
(
0
)
Multiplication Properties
(
0
)
Multiplication Skill Builders
(
0
)
Multiplication Word Problems
(
0
)
Multiply And Divide Decimals
(
0
)
Multiply By One-Digit Numbers
(
0
)
Multiply By Two-Digit Numbers
(
0
)
Multiply Decimals
(
0
)
Multiply Decimals By Powers Of Ten
(
0
)
Multiply Decimals By Whole Numbers
(
0
)
Multiply Fractions
(
0
)
Multiply Fractions And Whole Numbers
(
0
)
Multiply Mixed Numbers
(
0
)
Multiply Unit Fractions And Whole Numbers
(
0
)
Multiply Whole Numbers
(
0
)
Multisyllabic Words
(
0
)
Music
(
0
)
Names Of Numbers
(
0
)
Natural Hazards
(
0
)
Natural Resources And Human Impacts
(
0
)
Nonfiction Book Study
(
0
)
Nonlinear Functions
(
0
)
Nouns
(
0
)
Novel Study
(
0
)
Number Patterns
(
0
)
Number Theory
(
0
)
Numbers And Counting To 100
(
0
)
Numbers And Counting To 20
(
0
)
Numbers And Counting To 30
(
0
)
Numbers And Counting To 7
(
0
)
Numbers And Counting To 9
(
0
)
Numbers To 10
(
0
)
Numbers To 20
(
0
)
Numbers To 3
(
0
)
Numbers To 5
(
0
)
Numerical Expressions
(
0
)
Oceania: Geography
(
0
)
One More And One Less
(
0
)
One More And One Less To 10
(
0
)
One More And One Less To 20
(
0
)
One More And One Less To 5
(
0
)
One-Variable Equations
(
0
)
One-Variable Inequalities
(
0
)
One-Variable Statistics
(
0
)
Operations With Decimals
(
0
)
Operations With Fractions
(
0
)
Operations With Integers
(
0
)
Operations With Rational Numbers
(
0
)
Opinion Writing
(
0
)
Ordering And Comparing
(
0
)
Ordering Events
(
0
)
Organic Chemistry
(
0
)
Organizing Writing
(
0
)
Particle Motion And Energy
(
0
)
Patterns
(
0
)
Patterns And Sequences
(
0
)
Percents
(
0
)
Percents Of Numbers
(
0
)
Perimeter
(
0
)
Perimeter And Area
(
0
)
Personal Finance
(
0
)
Persuasive And Opinion Writing
(
0
)
Phase Change
(
0
)
Photosynthesis
(
0
)
Phrases And Clauses
(
0
)
Physcis
(
0
)
Physical And Chemical Change
(
0
)
Physical Geography
(
0
)
Physics
(
0
)
Place Value
(
0
)
Plant Reproduction
(
0
)
Plants
(
0
)
Poetry Elements
(
0
)
Point Of View
(
0
)
Polygons
(
0
)
Positions
(
0
)
Powers Of Ten
(
0
)
Pre-Contact America
(
0
)
Prefixes And Suffixes
(
0
)
Prehistory
(
0
)
Prepositions
(
0
)
Probability
(
0
)
Pronoun Types
(
0
)
Pronouns
(
0
)
Pronouns And Antecedents
(
0
)
Properties
(
0
)
Proportional Relationships
(
0
)
Proportions
(
0
)
Punctuation
(
0
)
Pythagorean Theorem
(
0
)
Quadrilaterals
(
0
)
Question Words
(
0
)
R-Controlled Vowels
(
0
)
Rational And Irrational Numbers
(
0
)
Rational Numbers
(
0
)
Ratios And Rates
(
0
)
Ratios, Rates, And Proportions
(
0
)
Read About Animals
(
0
)
Read Along About Famous People
(
0
)
Read Along About Holidays
(
0
)
Read And Write Times
(
0
)
Read-Alone Informational Texts
(
0
)
Read-Alone Literary Texts
(
0
)
Read-Along Informational Texts
(
0
)
Read-Along Literary Texts
(
0
)
Reading And Vocabulary
(
0
)
Reality Vs. Fiction
(
0
)
Reconstruction
(
0
)
Reference Skills
(
0
)
Relate Fractions And Decimals
(
0
)
Repeated Addition
(
0
)
Research Skills
(
0
)
Restrictive And Nonrestrictive Elements
(
0
)
Rhyme
(
0
)
Rhyming
(
0
)
Rocks
(
0
)
Rocks And Minerals
(
0
)
Rome And The Byzantine Empire
(
0
)
Rounding
(
0
)
Same And Different
(
0
)
Scale Drawings
(
0
)
Scaling By Fractions
(
0
)
Science Practices And Tools
(
0
)
Scientific Names
(
0
)
Scientific Notation
(
0
)
Semicolons, Colons, And Commas
(
0
)
Sensory Details
(
0
)
Sentence Variety
(
0
)
Sentences
(
0
)
Sentences, Fragments, And Run-Ons
(
0
)
Sequence
(
0
)
Sequences
(
0
)
Setting And Character
(
0
)
Shades Of Meaning
(
0
)
Shapes And Colors
(
0
)
Shapes In The Real World
(
0
)
Short A
(
0
)
Short And Long Vowel Patterns
(
0
)
Short And Long Vowels
(
0
)
Short E
(
0
)
Short I
(
0
)
Short O
(
0
)
Short U
(
0
)
Short Vowels
(
0
)
Sight Words
(
0
)
Silent E
(
0
)
Size
(
0
)
Skip-Counting
(
0
)
Skip-Counting And Number Patterns
(
0
)
Slope
(
0
)
Social Media Literacy
(
0
)
Social Studies Skills
(
0
)
Soft G And C
(
0
)
Solid Shapes
(
0
)
Solutions
(
0
)
Square Roots
(
0
)
Square Roots And Cube Roots
(
0
)
State Capitals
(
0
)
States
(
0
)
States Of Matter
(
0
)
Statistics
(
0
)
Story Elements
(
0
)
Storytelling
(
0
)
Subject-Verb Agreement
(
0
)
Subtraction
(
0
)
Subtraction Strategies Up To 10
(
0
)
Subtraction Strategies Up To 20
(
0
)
Subtraction Strategies: One Digit
(
0
)
Subtraction Strategies: Three Digits
(
0
)
Subtraction Strategies: Two Digits
(
0
)
Subtraction Up To 10
(
0
)
Subtraction Up To 20
(
0
)
Subtraction Up To 5
(
0
)
Subtraction Word Problems Up To 10
(
0
)
Subtraction Word Problems Up To 20
(
0
)
Subtraction Word Problems Up To 5
(
0
)
Subtraction: Four Or Five Digits
(
0
)
Subtraction: One Digit
(
0
)
Subtraction: Three Digits
(
0
)
Subtraction: Two Digits
(
0
)
Summarizing
(
0
)
Supply And Demand
(
0
)
Surface Area And Volume
(
0
)
Syllables
(
0
)
Symmetry
(
0
)
Synonyms And Antonyms
(
0
)
Systems Of Equations
(
0
)
Take Apart Numbers Up To 10
(
0
)
Take Apart Numbers Up To 5
(
0
)
Text Features
(
0
)
Text Structure
(
0
)
The American Revolution
(
0
)
The Americas: Geography
(
0
)
The Americas: Society And Environment
(
0
)
The Antebellum Period
(
0
)
The Civil War
(
0
)
The Civil War And Reconstruction
(
0
)
The Constitution
(
0
)
The Early Republic
(
0
)
The Gilded Age
(
0
)
The Greenhouse Effect
(
0
)
The Jacksonian Period
(
0
)
The Legal System
(
0
)
The Middle East: Society And Environment
(
0
)
The Silk Road
(
0
)
Theme
(
0
)
Then And Now
(
0
)
Thermal Energy
(
0
)
Three-Dimensional Figures
(
0
)
Three-Dimensional Shapes
(
0
)
Time
(
0
)
Topic And Purpose
(
0
)
Topic Sentences
(
0
)
Topographic Maps
(
0
)
Traits
(
0
)
Traits And Heredity
(
0
)
Transformations
(
0
)
Transformations And Congruence
(
0
)
Triangles
(
0
)
True Or False Equations
(
0
)
Two-Digit Multiplication
(
0
)
Two-Dimensional Figures
(
0
)
Two-Dimensional Shape Attributes
(
0
)
Two-Dimensional Shapes
(
0
)
Two-Step Word Problems
(
0
)
Two-Syllable Words
(
0
)
Two-Variable Equations
(
0
)
Two-Variable Statistics
(
0
)
Understand Addition
(
0
)
Understand Addition Up To 10
(
0
)
Understand Addition Up To 5
(
0
)
Understand Division
(
0
)
Understand Fraction Addition And Subtraction
(
0
)
Understand Fraction Division
(
0
)
Understand Fraction Multiplication
(
0
)
Understand Fractions
(
0
)
Understand Multiplication
(
0
)
Understand Multiplication With Mixed Numbers
(
0
)
Understand Subtraction
(
0
)
Understand Subtraction Up To 10
(
0
)
Understand Subtraction Up To 5
(
0
)
Units And Measurement
(
0
)
Units Of Measurement
(
0
)
Us Government And Civics
(
0
)
Us History
(
0
)
Using Sources
(
0
)
Variable Expressions
(
0
)
Variant, Diphthong, And R Vowel Patterns
(
0
)
Velocity, Acceleration, And Forces
(
0
)
Venn Diagrams
(
0
)
Verb Tense
(
0
)
Verb Tense And Mood
(
0
)
Verb Types
(
0
)
Verbs
(
0
)
Visual Elements
(
0
)
Volume
(
0
)
Vowel Teams
(
0
)
Water Cycle
(
0
)
Waves
(
0
)
Weather
(
0
)
Weather And Climate
(
0
)
Whole Numbers And Place Value
(
0
)
Word Choice And Usage
(
0
)
Word Recognition
(
0
)
World History
(
0
)
World History Project - 1750 To The Present
(
0
)
World History Project - Origins To The Present
(
0
)
World History Project Ap
(
0
)
World History Project Ap Review
(
0
)
World Religions
(
0
)
World War I
(
0
)
Writing Clearly And Concisely
(
0
)
Remove Filter
Apply Filter
Scroll to Top
/silk_road_trade_routes.jpg)
