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Week 1: Counting and addition
6 lessons•~30 mins
Skills and concepts for Counting and addition.
K-5 friendly path
First Grade Math
Number sense, addition and subtraction, and early problem-solving. Fun, interactive lessons for first graders. Bright visuals, short wins, and simple next steps are front and center here.
Adventure map
Start with one short lesson and build confidence.
Learning Adventures
✨
Week 2: Addition up to 10
5 lessons•~25 mins
Skills and concepts for Addition up to 10.
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Week 3: Addition and Subtraction up to 10
5 lessons•~25 mins
Skills and concepts for Addition and Subtraction up to 10.
🎯
Week 4: Subtraction up to 10
6 lessons•~30 mins
Skills and concepts for Subtraction up to 10.
🧩
Week 5: Subtraction up to 10
6 lessons•~30 mins
Skills and concepts for Subtraction up to 10.
🧪
Week 6: Addition and subtraction up to 10
5 lessons•~25 mins
Skills and concepts for Addition and subtraction up to 10.
🔍
Week 7: Addition up to 20
3 lessons•~15 mins
Skills and concepts for Addition up to 20.
💡
Week 8: Addition up to 20
2 lessons•~10 mins
Skills and concepts for Addition up to 20.
🏆
Week 9: Addition up to 20
2 lessons•~10 mins
Skills and concepts for Addition up to 20.
⭐
Week 10: Addition up to 20
3 lessons•~15 mins
Skills and concepts for Addition up to 20.
📚
Week 11: Subtraction up to 20
6 lessons•~30 mins
Skills and concepts for Subtraction up to 20.
✨
Week 12: Subtraction up to 20
8 lessons•~40 mins
Skills and concepts for Subtraction up to 20.
🚀
Week 13: Subtraction up to 20
7 lessons•~35 mins
Skills and concepts for Subtraction up to 20.
🎯
Week 14: Addition and subtraction
5 lessons•~25 mins
Skills and concepts for Addition and subtraction.
🧩
Week 15: Addition and subtraction
5 lessons•~25 mins
Skills and concepts for Addition and subtraction.
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Week 16: Addition and subtraction equations
6 lessons•~30 mins
Skills and concepts for Addition and subtraction equations.
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Week 17: Measurement
6 lessons•~30 mins
Skills and concepts for Measurement.
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Week 18: Time
7 lessons•~35 mins
Skills and concepts for Time.
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Week 19: Data and graphs
6 lessons•~30 mins
Skills and concepts for Data and graphs.
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Week 20: Counting up to 120
8 lessons•~40 mins
Skills and concepts for Counting up to 120.
📚
Week 21: Counting and skip-counting
8 lessons•~40 mins
Skills and concepts for Counting and skip-counting.
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Week 22: Money
6 lessons•~30 mins
Skills and concepts for Money.
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Week 23: Place value
5 lessons•~25 mins
Skills and concepts for Place value.
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Week 24: Place value and comparing
5 lessons•~25 mins
Skills and concepts for Place value and comparing.
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Week 25: Comparing
5 lessons•~25 mins
Skills and concepts for Comparing.
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Week 26: Two-digit addition and subtraction
5 lessons•~25 mins
Skills and concepts for Two-digit addition and subtraction.
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Week 27: Two-digit addition
6 lessons•~30 mins
Skills and concepts for Two-digit addition.
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Week 28: Two-digit addition
6 lessons•~30 mins
Skills and concepts for Two-digit addition.
🏆
Week 29: Two-dimensional shapes
5 lessons•~25 mins
Skills and concepts for Two-dimensional shapes.
⭐
Week 30: Two-dimensional shapes
6 lessons•~30 mins
Skills and concepts for Two-dimensional shapes.
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Week 31: Three-dimensional shapes
8 lessons•~40 mins
Skills and concepts for Three-dimensional shapes.
✨
Week 32: Fractions
8 lessons•~40 mins
Skills and concepts for Fractions.
All Lessons (180)
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Counting Review - Up to 20
🔢 Let's practice counting from 1 to 20! Counting is like climbing stairs - you go one step at a time. When you can count to 20, you can count toys, snacks, and so much more!
Count on Ten Frames - Up to 40
🧮 Ten frames help you count quickly by seeing groups of ten. Instead of counting every dot one by one, count tens and then ones!
Add with Pictures - Sums up to 10
🖼️ Pictures make adding easy! When you see groups of things, you can count them all together to find the sum. Addition means "putting together" - it's that simple!
Addition Word Problems with Pictures - Sums up to 10
🤔 Every math problem tells a story! Let's become story detectives and use our drawing skills to solve addition mysteries. When you can draw the story, you can solve the problem!
Add with Cubes - Sums up to 10
🧱 Let's be builders! We can use cubes or blocks to build number towers. When we add, we connect two towers together to see how tall they become!
Addition Sentences: Which Model Matches?
🔎 You're a math detective again! This time, you have the secret code (the number sentence), and you have to find the picture (the model) that it describes. Let's match them up!
Add in Any Order (The Turnaround Rule!)
🔄 Did you know that addition has a cool magic trick? 3 + 5 is the same as 5 + 3! This is the "turnaround rule," and it means you have to memorize half as many addition facts!
Addition Sentences Using Number Lines - Sums Up to 10
📏 Number lines are math roads. For addition, start at the first number and hop to the right.
Add by Counting On - Sums up to 10
🚀 Boost your addition speed! Instead of counting every single thing, start with the biggest number and just count on from there.
Addition Facts - Sums up to 10
🦸♀️ It's time to become a Math Fact Superhero! Knowing your addition facts by heart is a superpower that makes all future math faster and easier. Let's train our brains!
Make a Number Using Addition - Sums up to 10
🔨 A number can be built in many different ways! Just like you can build a house with different blocks, you can "make" a number like 7 using different pairs of smaller numbers. Let's be number builders!
Build Cube Trains to Solve Addition Word Problems - Sums up to 10
🚂 Choo choo! Time to build number trains! We can use linking cubes like train cars to solve math stories.
Addition Word Problems - Sums up to 10
📖 Be a Math Detective! Look for the clues hidden inside these addition stories to find the right answer.
Complete the Addition Sentence - Sums up to 10
🕵️♂️ Missing number alert! One of the numbers in our addition sentence has vanished. Use your math skills to find it!
Subtract with Cubes - Up to 10
💥 Let's break things apart! Use cubes to show how numbers shrink when we subtract.
Subtraction Word Problems with Pictures - Up to 10
✏️ Let's draw some subtraction stories! In these stories, things disappear, get eaten, or fly away. Drawing a picture and crossing things out is the best way to find out what's left.
Subtraction Using Number Lines - Up to 10
📏 A number line is like a ruler for math! When you subtract, you jump BACKWARD on the number line. It helps you see subtraction as "going back" or "taking away".
Subtract by Counting Back - Up to 10
⬅️ Subtraction means going backward. Count back from the starting number to find how many are left.
Fact Families - Up to 10
🏠 Addition and subtraction live in the same family. If you know one fact, you can find the others!
Relate Addition and Subtraction Sentences - Up to 10
🔄 Addition and subtraction are opposites, like a forward and backward button! If you add a number, you can "un-do" it by subtracting that same number. Let's explore these "Un-doers"!
Subtract by Counting On - Up to 10
🤔 Here's a different way to subtract! Instead of counting back, we can count UP from the smaller number to the bigger number. This is a great strategy when numbers are close together!
Subtraction Facts - Up to 10
🥷 Time for Subtraction Ninja Training! To be a true math ninja, you must answer subtraction problems with speed and skill. Let's master the strategies so you can solve any problem in a flash!
Use Cube Trains to Solve Subtraction Word Problems - Up to 10
🚂 Let's decouple some train cars! Cube trains are perfect for showing how things are taken away in subtraction stories.
Subtraction Word Problems - Up to 10
📖 Subtraction stories can be about "taking away" OR "comparing"! Let's learn to spot the difference and become subtraction story masters.
Comparing: How Many More?
⚖️ Who has more? And exactly *how many* more? We can compare two groups by lining them up to easily spot the extras!
Comparison Word Problems up to 10: How Many More?
📖 Let's solve comparison stories! These stories will ask you "how many more?" of something there is. We can use our drawing and matching strategy to find the answer.
Comparing: How Many Fewer?
🤔 "How many fewer?" is just the other side of the same coin as "how many more?". If you have more, the other person has fewer! The difference is the same.
Comparison Word Problems up to 10: How Many Fewer?
📖 Let's practice our comparison skills with stories that ask "how many fewer?". Remember, you already know how to do this! It's the same as finding "how many more".
Add and Subtract with 0 (The Zero Hero!)
🦸♂️ Meet the Zero Hero! Zero is a special number with a cool superpower: it doesn't change other numbers when you add or subtract it. It keeps their identity!
Complete the Addition Sentence to Make Ten
🧩 Let's play "Make Ten"! This is a super important puzzle in math. We need to find the "friend" number that helps another number get to 10.
Addition and Subtraction Facts - Up to 10
💪 Time for a fluency check! You have learned so many strategies for adding and subtracting. Now let's mix them all up and see how powerful your math brain has become!
Addition and Subtraction Sentences to 10: Which is True?
🤔 Fact or Fib? It's time to be a judge! You will look at a number sentence and decide if it is telling the truth (a fact) or a lie (a fib).
Word Problems with Unknown Sums and Differences - up to 10
🏆 Welcome to the Word Problem Challenge! You have learned all the strategies. Now it's time to use them to solve any kind of story problem that comes your way!
Add by Counting On - Sums Up to 20
🚀 Counting on is faster than counting all. Start from the bigger number, then count up.
Mastering Small Additions (+0, +1, +2, +3)
🚀 Let's learn some super-fast mental math tricks! Adding 0, 1, 2, or 3 to any number is easy once you know the secrets. Let's master these small additions!
Super Doubles: Models and Facts
🎲 Doubles are your secret weapon in math! When you add a number to itself (3+3), you unlock the power of doubles. Let's explore them with models and master the facts!
Clever Near Doubles
🕵️♀️ Use your doubles knowledge like a detective! If you know a double fact, you can solve the problems right next to it. We call these "near doubles" or "neighbors of doubles".
Strategies for Adding 4, 5, and 6
🔧 Let's add some powerful new tools to your math toolbox! Instead of just counting, let's learn smart strategies to add 4, 5, and 6 to any number.
Mastering the Make Ten Strategy
🎯 Making 10 is the most powerful addition strategy! Let's use ten frames to see how we can break apart numbers to make a ten, which makes any problem easier to solve.
Adding Three Numbers
➕➕➕ Adding three numbers at once? No problem! The secret is to look for friends first. Find a pair of numbers that are easy to add together, like friends that make 10!
Strategies for Adding 7, 8, and 9
🦸♀️ 7, 8, and 9 are big numbers! But we have a secret superhero strategy to deal with them: making a 10!
Addition Fact Fluency up to 20
⚡️ Become a Lightning Calculator! Now that you know all the strategies, it's time to practice until you are super fast.
Problem Solving with Numbers up to 20
🕵️♀️ Let's combine our reading skills and our addition skills up to 20 to crack some real-world story mysteries!
Subtraction Sentences Using Number Lines - Up to 20
🦘 Hop backward down the number line! We can use a number line to make subtracting up to 20 super visual and easy.
Subtract by Counting Back - Up to 20
🧠 Put away the number line, it's time to count back in your head! You can subtract small numbers quickly just by counting backward.
Subtracting 1
🔙 Subtracting 1 is super easy! It's just finding the number that comes right before it.
Subtracting 2
✌️ Subtracting 2 means taking two backward hops. Or, you can just think about skipping numbers!
Subtracting 3
3️⃣ Time for a triple hop! Subtracting 3 is just as easy as counting backward a little bit farther.
Subtracting 4
🚗 Beep beep! A car has 4 wheels. Subtracting 4 is like taking off all the wheels on a car!
Subtracting 10
🦸♂️ Subtracting 10 is actually one of the easiest math tricks ever! You don't even have to count.
Use Ten Frames to Subtract
🟥 Ten frames make subtraction easy to see. Cross out dots to show taking away.
Use Ten to Subtract
🦸♂️ Ten is your superpower! When you have a tough subtraction problem in the teens, you can use the number 10 as a stepping stone to find the answer fast.
Subtracting 5
🖐️ High five... minus 5! Subtracting 5 is easy when you remember that 5 is exactly half of 10. You can use your hands to help!
Subtracting 6
🧱 6 is just 5 plus 1! If you know how to subtract 5, you already know how to subtract 6. Just take one more step.
Subtract by Counting On - Up to 20
🧗♂️ Climbing the number ladder! When two numbers are very close together on the number line, counting UP is faster than subtracting down.
Count On and Use Ten to Subtract - Up to 20
⚡️ The ultimate combination! Let's put two mighty strategies together to solve any teen subtraction problem in record time.
Subtract Doubles
👯♂️ Doubles to the rescue! If you know your addition doubles by heart, then you automatically know your subtraction doubles for free!
Subtracting 7
Lucky number 7! By now, you know several tricks. Let's use our combo tricks to take away 7 with ease.
Subtracting 8
🕷️ An octopus has 8 legs. If we subtract them all, how many are left? Let's use our tricks on number 8!
Subtracting 9
🎈 9 is almost 10! Because 9 is just one step away from 10, it has the absolute coolest math shortcut of them all.
Subtraction Facts - up to 20
⚡️ It's the Final Exam for Subtraction Ninjas! Mix all your strategies together to blast through these subtraction facts.
Make a Number Using Subtraction - Up to 20
🧩 Be a math inventor! There isn't just one way to make a number. You can find dozens of different subtraction sentences that all equal the same answer.
Subtraction Word Problems - Up to 20
🕵️♂️ Clue alert! When reading stories with numbers up to 20, keep your eyes open for hidden subtraction words!
Comparison Word Problems up to 20: How Many More or Fewer?
⚖️ It's a matchup! When two big groups go head-to-head, we use subtraction to find out exactly who won, and by how much.
Word Problems with Change Unknown - Up to 20
❓ The mysterious middle number! Sometimes you know the start, and you know the end... but you don't know what happened in between!
Word Problems with Start Unknown - Up to 20
🎬 Rewind the clock! In these problems, we know what happened at the end, but we don't know what happened at the very beginning.
Word Problems with One Addend Unknown - Up to 20
🤝 Addition is all about finding two parts that make a whole. But what happens if one of the parts goes missing?
Word Problems with Both Addends Unknown - Up to 20
🤯 The Ultimate Puzzle! What happens when you KNOW the total, but you don't know EITHER of the parts? Let's find all the possibilities!
Addition and Subtraction Facts - Up to 20
💥 The Ultimate Speed Test! Addition and subtraction facts are all mixed up. Can your brain switch gears back and forth instantly?
Word Problems: Addition and Subtraction Mix (No Comparisons)
🕵️♀️ The Mixed-Up Mystery Bag! In these stories, somebody is either getting more things, or losing things. But you have to figure out which one it is!
Addition and Subtraction - Ways to Make a Number
🎨 Math is a canvas! There are infinite ways to paint the exact same number using both addition and subtraction. Let's see your creativity!
Comparison Word Problems up to 20: What is the Larger Amount?
🐘 Let's build measuring puzzles! Sometimes you know how big the small thing is, and you know the difference between them. Can you figure out how big the massive thing is?
Comparison Word Problems up to 20: What is the Smaller Amount?
🐭 Time for a shrinking puzzle! If you know how big the giant is, and you know the difference, can you find out how tiny the small thing is?
Comparison Word Problems up to 20: Mixed Practice
🔀 The ultimate comparison test! You will have to decide for yourself whether you need to add or subtract to find the missing clue.
Addition Sentences: Which is True?
⚖️ Be the judge of the math court! Not every math sentence is telling the truth. You must use the equals sign to smoke out the imposters.
Subtraction Sentences: Which is True?
🤥 Is that subtraction sentence lying to you? It's time to put on your detective glasses and solve the left side to prove the right side is true (or false)!
Mixed Sentences to 20: Which is True?
⚡️ A fast-paced true or false challenge with both pluses and minuses! Keep your eyes peeled for the math signs.
Which Sign Makes the Number Sentence True?
🕵️♂️ Oh no! Someone stole the math signs! You have to look at the numbers and the answer to figure out if it was a PLUS or a MINUS.
Complete the Addition Sentence - Sums up to 20
🧩 The missing piece! Time to use subtraction to find the hidden addend in these big addition sentences.
Complete the Subtraction Sentence - Up to 20
❓ Two types of missing numbers! In subtraction, finding the missing number changes depending on WHERE the missing number is. Let's learn the rules.
Compare Objects: Length and Height
📏 Who is taller? Which train is longer? Let's measure up and compare the size of different objects using our math eyes.
Compare Size, Weight, and Capacity
🐘 How heavy is a hippo? How much water fits in a bathtub? Let's explore how to measure weight and capacity!
Measure Length with Objects
📎 Let's make our own rulers! You don't need a ruler to measure things. You can use anything as long as they are all the exact same size!
Build Cube Trains to Measure Length
🚂 Let's snap some math! Cube trains snap together perfectly, which makes them the absolute best tool for measuring length without a ruler.
Measure Using an Inch Ruler
📏 Meet the Ruler! It's time to graduate from paper clips and cubes to the real tool adults use to measure length in inches.
Measure Using a Centimeter Ruler
🌎 The rest of the world's ruler! Let's flip our rulers over and look at the tiny numbers. These are called centimeters.
Match Digital Clocks and Times
⏰ Digital clocks are everywhere! Let's learn the secret code of the dots to quickly read what time it is on a screen.
Match Analog Clocks: to the Half Hour
🕰️ Welcome to clock reading! Analog clocks use spinning hands to show the time. Let's learn where the hands point when it's "o'clock" or "thirty".
Match Analog and Digital Clocks: to the Half Hour
🤝 Mix and Match! Let's translate the old-school spinning clock hands into modern digital numbers on a screen.
Read Clocks and Write Times
📝 You are a timekeeper! It's time for the ultimate test: look at any clock face and accurately write down the correct time.
Compare Clocks
🕒 Comparing clocks means deciding which time is earlier and which is later.
Days of the Week
📅 Welcome to the calendar! Earth takes 24 hours to spin around once. We call that a "Day". Let's learn the names of our 7 special days.
Read a Calendar
📅 Weeks, months, and years! Let's learn how a calendar organizes all the days so we know exactly when our birthdays are coming up.
Which Picture Graph is Correct?
📊 Pictures that hold data! A picture graph (or pictograph) uses tiny drawings to show you how many of something there are.
Interpret Picture Graphs
🔍 Be a graph detective! Now that you know how a graph is made, you can read the graph to answer questions about the data inside it.
Which Tally Chart is Correct?
/// Let's make tally marks! Tally marks are the fastest way to count things when you are trying to keep track of a busy game or a survey.
Interpret Tally Charts
📊 Tally charts count data with quick marks. Every 5th mark crosses the group.
Record Data in Tables
🗄️ Become a data scientist! A table is a grid that organizes numbers perfectly in rows and columns so you don't get confused.
Interpret Data in Tables
💡 The data speaks! Once your numbers are perfectly organized in a table, you can answer tricky questions instantly.
Count Objects to 100
💯 Welcome to the big leagues! Counting to 100 takes time, but if you break your objects into neat little groups, it goes much faster.
Count Forward - Up to 100
➡️ Let's master the number path! Counting up to 100 is just like regular counting, you just have to remember how to "turn the corner" into the next group of tens.
Count on the Hundred Chart
🗺️ The ultimate number map! A hundred chart puts all the numbers perfectly in a grid so you can see the amazing hidden patterns in math.
Number Lines - Up to 100
🛣️ Welcome to the number highway! Number lines look a little different when they go all the way to 100. Sometimes they zoom out and skip numbers!
Hundred chart
Master the skills and concepts for: Hundred chart.
Count up to find the next number - up to 120
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Count on a number chart - up to 120
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Count down to find the next number - up to 120
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Number lines - up to 120
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Sequences - count up and down by 1
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Skip-Count by Twos
👟 Skip-counting by twos is counting pairs: 2, 4, 6, 8... It helps with even numbers and multiplication.
Skip-Count by Fives
🖐️ Skip-counting by 5s is super fun! Instead of counting 1, 2, 3, 4, 5... you jump by 5s: 5, 10, 15, 20! It's faster and it helps you with money, time, and multiplication later!
Skip-count by tens
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Skip-count by twos, fives, and tens
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Writing numbers in words - convert words to digits
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Writing numbers in words - convert digits to words
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Names and Values of Common Coins
💰 Money makes the world go round! Let's learn about the four coins you'll use most: pennies, nickels, dimes, and quarters. Each coin has a special name, look, and value!
Count pennies, nickels, and dimes
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Count pennies, nickels, dimes, and quarters
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Equivalent groups of coins
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Exchanging coins - with pictures
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Purchases: do you have enough money?
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Build and Break Apart Teen Numbers
🔟 Teen numbers are 10 and some more. Break them into tens and ones.
Place value models up to 20
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Build and break apart multiples of ten
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Build and break apart two-digit numbers - with models
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Place value models for two-digit numbers
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Build two-digit numbers
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Build and break apart two-digit numbers - without models
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Ten More or Less
➕➖ Ten more or ten less changes only the tens place. The ones digit stays the same.
Compare numbers up to 10 using words
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Compare numbers up to 10 using symbols
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Use place value to compare numbers up to 100
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Compare numbers up to 100 using words
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Compare numbers up to 100 using symbols
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Compare numbers up to 100: word problems
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Put numbers in order - up to 100
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Add multiples of ten
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Subtract multiples of ten
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Add and subtract multiples of ten
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Use models to add a multiple of ten and a one-digit number
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Add a multiple of ten and a one-digit number
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Use models to add a two-digit and a one-digit number - without regrouping
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Add a two-digit and a one-digit number - without regrouping
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Regroup tens and ones
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Use models to add a two-digit and a one-digit number - with regrouping
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Add a two-digit and a one-digit number - with regrouping
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Addition word problems - two-digit plus one-digit numbers
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Use models to add a multiple of ten and a two-digit number
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Add a multiple of ten and a two-digit number
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Use models to add two-digit numbers - without regrouping
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Add two-digit numbers without regrouping - sums to 100
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Use models to add two-digit numbers - with regrouping
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Add two-digit numbers with regrouping - sums to 100
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Name the Two-Dimensional Shape
🟦 2D shapes are flat shapes. Learn their names by counting sides and corners.
Select two-dimensional shapes
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Rhombuses
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Count sides and corners
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Compare sides and corners
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Square corners
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Equal sides
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Open and closed shapes
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Compose two-dimensional shapes
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Count shapes in a Venn diagram
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Sort shapes into a Venn diagram
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Two-Dimensional and Three-Dimensional Shapes
📐 Did you know shapes can be flat OR solid? 2D shapes are flat like a piece of paper. 3D shapes are solid like a ball or a box. Let's discover the difference!
Cubes and rectangular prisms
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Select three-dimensional shapes
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Three-dimensional shapes in the real world I
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Three-dimensional shapes in the real world II
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Count vertices, edges, and faces
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Compare vertices, edges, and faces
Master the skills and concepts for: Compare vertices, edges, and faces.
Identify faces of three-dimensional shapes
Master the skills and concepts for: Identify faces of three-dimensional shapes.
Equal parts - 2 and 4 equal parts
Master the skills and concepts for: Equal parts - 2 and 4 equal parts.
Identify Halves
🍕 When you split something into 2 EQUAL parts, each part is called a HALF! Sharing a cookie with a friend? That's halves! Half means 1 out of 2 equal pieces.
Identify Fourths
🍫 Fourths mean one out of four equal parts. Equal-size pieces are the key!
Identify halves and fourths
Master the skills and concepts for: Identify halves and fourths.
Make halves
Master the skills and concepts for: Make halves.
Make fourths
Master the skills and concepts for: Make fourths.
Make halves and fourths
Master the skills and concepts for: Make halves and fourths.
Make halves and fourths in different ways
Master the skills and concepts for: Make halves and fourths in different ways.