All Lessons
Adding and Subtracting Tens
Add and subtract tens and solve sentences that use two-digit numbers.
Adding Three or More Numbers
How would you solve 3 + 3 + 9 + 1? Learn how to add three or more numbers!
Adding with Regrouping
What is 52 + 9? Remember to regroup and carry the one to find the sum!
Addition and Subtraction Fact Families
Family matters! Learn about addition and subtraction fact families.
Alexander Graham Bell
Explore the ideas, inventions, and innovations of this scientist.
Allen Say
Go on a journey with Allen Say! Learn about this Japanese-American author and illustrator.
Amelia Earhart
Learn about Amelia Earhart, the first woman to fly solo across the Atlantic Ocean.
Ancient Egypt
What is the Rosetta Stone? Learn what remains from this civilization today.
Arctic Habitats
How do people, animals, and plants adapt to this cold, windy environment?
Basic Parts of a Whole
You "half" to watch this movie! Explore halves, thirds, and fourths.
Basic Probability
What's possible or impossible? Explore the probability of different events.
Basic Subtraction
What is 5 - 3? Explore different ways to solve subtraction sentences.
Bossy R
The bossy “r” strikes again! Discover how this one letter has the power to change the sound of the vowel it follows!
Branches of Government
Learn how the legislative, judicial, and executive branches work together.
Butterflies
How does a caterpillar change into a butterfly? Watch the movie to find out.
Calendar and Dates
What's the date? Learn how a calendar keeps track of days, weeks, and months.
Caring for Pets
Having a pet is a big responsibility! Learn to keep pets healthy and safe.
Cause and Effect
What can cause a vase to break? Explore causes and effects as you read.
Centimeters, Meters, Kilometers
Learn to measure length, width, height, and distances using the metric system.
Changing States of Matter
Explore solids, liquids, and gases and investigate how they can change.
Choosing a Book
Learn how to choose a book that's not too easy or too hard, but just right!
Choosing an Operation
Add, subtract, multiply, or divide! Which operation should you use?
Clara Barton
Learn about the humanitarian Clara Barton and how she founded the American Red Cross!
Classifying Animals
What's your favorite animal? Explore mammals, reptiles, birds, and more!
Commas with Adjectives and Lists
The big, silly robot hops! Use commas to separate adjectives or items in a list.
Commas with Clauses
Comma down! Explore clauses, and learn how to use commas with them!
Compare and Contrast
How are dolphins and sharks alike? How are they different? Learn how to compare and contrast!
Comparing Numbers
Compare numbers using the greater than, less than, and equal to symbols.
Continents and Oceans
Where in the world do you live? Explore our planet's continents and oceans.
Counting Coins
Use counting and adding strategies to count different coins up to one dollar.
Cups, Pints, Quarts, Gallons
Could you drink a gallon of milk? Explore different units of capacity.
Dividing with Remainders
Can you divide 2 into 5 equally? Learn how to divide with remainders.
Dollars and Cents
How many quarters are in a dollar? Learn the values of different coins.
Elements of Art
Explore and experiment with color, value, texture, shape, form, line, and space!
Ellis Island
Explore the history of Ellis Island and its immigration inspection process.
Eloise Greenfield
Learn how Eloise Greenfield uses rhythm to make her poems and stories come alive.
Empathy
Learn about empathy and how to show people that we understand and care about their feelings.
Equivalent Coins
What are ways to make ten cents? Add and trade coins in different ways.
Equivalent Fractions
What are some equivalent fractions for one-half, one-fourth, and one-third?
Extinct and Endangered Species
Why are giant pandas endangered? How can we protect living things?
Freshwater Habitats
Learn how plants and animals adapt to ponds, rivers, streams, and lakes.
George Washington
Learn about the life and work of the first President of the United States.
George Washington Carver
Learn about this African-American scientist and how he changed farming.
Georgia O'Keeffe
Learn what inspired this painter and how she saw flowers in a different way.
Goods and Services
Explore how producers and consumers work with each other to do business.
Grams and Kilograms
Explore grams and kilograms and compare masses using a balance scale.
Inches and Feet
How many inches are in a foot? Explore measurement using inches and feet.
Insects
Most of the world's animals are insects! Learn about these important creatures!
Internet Safety
Do you have a strong password? Learn important ways to stay safe online.
Johnny Appleseed
Learn how he spread his love of apples, and explore some tall tales about him.
Kindergarten
What is kindergarten like? Learn how to get ready to start elementary school.
Lewis and Clark Expedition
Learn about this long, difficult journey through unknown territory.
Library
Borrow a book! Learn how to find, check out, and return materials at the library!
Listening and Speaking
Listen up! Speak up! Learn how to communicate your thoughts clearly.
Living and Nonliving Things
Learn about the differences between living and nonliving things!
Local and State Governments
Learn how the leaders of towns, cities, and states help run our communites.
Long E
What do the words “bean” and “queen” have in common? They have the long “e” sound!
Long I
How are the words “bike,” “pie,” and “night” alike? Learn about the long “i” sound!
Long U
How are words “cute,” “tune,” “fruit,” and “moon” alike? They all have the long “u” sound!
Lunar New Year
Explore Lunar New Year celebrations and traditions from around the world!
Mae Jemison
Blast off and learn about Dr. Mae Jemison, the first Black woman astronaut!
Make Inferences
Learn to observe and find clues that can help you figure out a writer’s message.
Make Predictions
What happens next? Learn to use clues to make predictions as you read.
Making and Testing Predictions
Learn how scientists plan experiments to test their predictions.
Making Observations
Learn how to use different tools to help you observe and gather information.
Making Ten
What is four plus six? Learn different ways to make ten and break ten apart.
Martin Luther King, Jr.
Learn about this activist's life and how he fought for equal rights for all people.
Maya Civilization
What happened to the Maya people? Learn about this ancient civilization.
Milliliters and Liters
Explore milliliters and liters and discover what we measure with these units of volume.
Mindfulness
How can practicing mindfulness help you? Learn how to notice and accept your thoughts, feelings, senses, and actions.
Missing Numbers with Addition and Subtraction
Get on the case! Help Moby and Annie find the missing numbers in number sentences!
More Fractions
Explore different fractions, such as one-half, three-fifths, and five-eighths.
Multiplying by 0 or 1
What is 3 x 0? Explore multiplication equations using zero or one.
Natural Resources
Learn to conserve! Explore renewable and non-renewable sources of energy.
Ounces, Pounds, and Tons
How much does an elephant weigh? Explore different units of weight.
Parts of a Clock
Explore how to use a clock’s face, hour hand, and minute hand to tell time.
Parts of a Computer
Eek! I see a mouse! Find out how to protect and care for your computer.
Parts of a Plant
Know your roots! Explore different parts of plants, like stems, leaves, and flowers.
Pat Mora
Experience joy and gratitude with Pat Mora! Learn about this bilingual author and her books and poems.
Physical and Chemical Changes
What happens when ice melts? Explore ways properties of matter can change.
Pitch, Tone, and Beat
High, low, fast, slow! Explore how music mixes pitch, tone, and beat.
Plant Adaptations
Yum! Some plants "eat" insects! Learn how plants adapt to their habitats.
Points, Lines, Segments, Rays
What's the point? Explore points, lines, segments, and rays!
Possessive Nouns
Moby uses Mia's camera to photograph a birds' nest. Explore possessive nouns.
Pueblo
Learn about the culture, traditions, and history of this Native American people.
Pushes and Pulls
Forces can change how things move. Explore motion, position, and more!
Quadrilaterals
What’s a quadrilateral? Explore squares, rectangles, trapezoids, and more!
Rainforests
Explore the Amazon! Learn about plants and animals that live in rainforests.
Reading Nonfiction
Explore the parts of a nonfiction book, from the table of contents to the index.
Reduce, Reuse, Recycle
Paper, plastic, or reusable bag? Learn how you can conserve natural resources.
Repeated Subtraction
Solve division equations by subtracting the same number over and over.
Rights and Responsibilities
Know your rights! Learn the difference between rights and responsibilities.
Ruby Bridges
Learn how Ruby Bridges bravely stood up for equal rights when she integrated an all-white school.
Rural, Suburban, and Urban
Do you live in a big city? Explore how populations differ across communities.
Safety Signs
Stop! Don't walk! Learn about safety signs and why you should follow them.
Saving and Spending
A penny saved is a penny earned! Learn to be responsible with money.
Sending a Letter
Let's be pen pals! Learn to write and send friendly letters and business letters.
Short Story
Do you have a story idea? Learn how to write, revise, and edit your short stories.
Simple Machines
It's simple! Explore different tools that use force to make work easier.
Slides, Turns, and Flips
You'll flip for flips! Explore how you can move shapes in different ways.
Solar System
Is Pluto a planet? Learn about our Sun and the bodies in our Solar System.
Solid Shapes
What's the shape of a globe? Explore cubes, cones, and other solid shapes.
Solids, Liquids, and Gases
What's the matter? Learn about the different states of matter all around you.
Statue of Liberty
Learn about Lady Liberty! Learn how the monument was designed and built.
Subject and Verb Agreement
Make them agree! Learn how to match subjects and verbs in a sentence.
Subtracting Without Regrouping
How can you solve 18 - 5? What about 26 - 11? Watch and learn!
Susan B. Anthony
Learn about the life of this activist and her fight for women's rights.
Synonyms and Antonyms
Big and small, short and tall! Explore words with the same or opposite meanings.
Tally Charts and Bar Graphs
Tally it up! Learn how to display data using tally charts and bar graphs.
th, sh, and wh
The sixth sheep is sick! Explore words with the "th," "sh," and "wh" sounds.
Thanksgiving
Who are the Wampanoag? What happened when the Pilgrims arrived on their land? Learn about Thanksgiving and explore how this holiday is celebrated today.
Thirteen Colonies
What are the thirteen colonies? Learn what life was like for the colonists.
Time Signature and Note Values
Explore quarter, half, and whole notes and learn how to read them.
Time to the Minute
What time is it? Learn how to read the hour and minute hands on a clock.
Time to the Quarter and Half Hour
Where are the hour and minute hands on a clock when it's 4:30?
U.S. Symbols
What are some objects and buildings that are symbols of the United States?
U.S. Symbols
What are some objects and buildings that are symbols of the United States?
Using Adjectives to Compare
Moby is the silliest robot in school! Learn how to use adjectives to compare.
Writing a Paragraph
Explore the writing process! Learn how to write a strong paragraph.
Writing About Yourself
Do you keep a journal? Explore how to communicate your feelings and ideas.
Writing with the Senses
The warm chocolate cake is gooey and sweet! Use the senses as you write.