Changing the Way Students Think About Math

Math Mights are a way to tie math strategies to characters that will help students understand math processes differently than just solving problems one way. This series promotes students’ communicated reasoning so they are able to confidently explain their thinking. It also provides a common language in schools so students can learn about the characters and the strategies in kindergarten and apply the same strategies to higher level concepts as they grow.

Visit MathMights.org for additional resources for each lesson and more information about the show.

Special Thanks for Math Mights

Math Mights was adapted from IM K-5 Math™ ©2021 by Illustrative Mathematics®, released under the Creative Commons Attribution 4.0 International License (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/.

Additions and adaptations are ©2021 by Strategic Intervention Solutions, LLC

Math Mights Lessons

  • Math Mights - Kindergarten

    Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number more than his focus number. Examine a train to find shapes. Put together shapes to make familiar objects.

  • Math Mights - 1st Grade

    Warm up with a Mystery Math Mistake to add 9 and 5 using a double 10-frame and a decompose strategy. Use near-doubles to add with double 10-frames and a compensation strategy.

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake to find the mistake made in counting up on a number line to subtract. Use visual models to practice adding and subtracting lengths of objects within 100.

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake to hunt for the mistake made counting up on the number line. Use a Rekenrek and number line to explore rounding numbers to the nearest ten and hundred.

  • Math Mights - Kindergarten

    Warm up with a Mystery Math Mistake to tell whether Dotson's 10-frames represent a number less than his focus number. Tell Which One Doesn't Belong by examining four sets of pattern blocks. Use pattern blocks to make different shapes.

  • Math Mights - 1st Grade

    Warm up with a Mystery Math Mistake to find the error in DC's addition. Use different strategies to subtract including counting back and the connection between addition and subtraction. Use a number line to help count on to find a difference.

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake to find the mistake made in counting up on a number line to subtract. Notice and wonder to compare a bar graph and a line plot. Measure your own hand span. Create and use a line plot of hand span data to answer questions.

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake to hunt for the mistake made counting up on the number line. Use place value cards to practice rounding numbers to the nearest ten and hundred.

  • Math Mights - Kindergarten

    Warm up with a Mystery Math Mistake to build "one more." Hunt for different shapes within a picture. Describe and use attributes of shapes to tell if two shapes are the same. Match everyday objects with their shape.

  • Math Mights - 1st Grade

    Warm up with a Mystery Math Mistake to decompose teen numbers. Use a double 10-frame to represent adding three single-digit numbers. Play a game with 10-frame cards to add numbers. The one with the greatest number wins!

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Measure the length of objects and sides of shapes in inches. Notice and Wonder to compare centimeters and inches. Find objects that are about 1 inch long.

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake to figure out what went wrong when adding two 3-digit numbers. Subtract within 1,000 using a number line and compensation and decompose strategies.

  • Math Mights - Kindergarten

    Warm up with a Mystery Math Mistake to order numbers. Explore 4 shapes: triangles, squares, rectangles, and circles. Go on a Shape Hunt to see how many shapes you can find in a picture. Use attributes of shapes to help reveal a mystery shape.

  • Math Mights - 1st Grade

    Warm up with a Mystery Math Mistake to compare expressions. Make a 10 to help you add. Use a double 10-frame and the "make 10" strategy to add two single-digit numbers.

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake to add 2 two-digit numbers. Explore how many inches there are in a foot. Practice picking the best unit, inches or feet, to measure the length of objects.

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake to find a mistake made in using an algorithm for addition and subtraction. Subtract within 1000 using strategies and algorithms based on place value, properties of operations, and/or the relationship between addition and subtraction.

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. What do you [...]

  • Math Mights - 3rd Grade

    Use decomposition to find the area of figures. How will you decompose the figures into rectangles? Engage in a Number Talk and compare your strategies to others.

  • Math Mights - 2nd Grade

    Decompose numbers to subtract. Engage in a Number Talk focused on subtraction strategies. Can you solve the problem without pencil and paper? Play a fun subtraction game called "Less than 10".

  • Math Mights - 3rd Grade

    Explore area with square inches and centimeters. How can we use square inch tiles and centimeter cubes to compare the area of squares and rectangles? You'll also engage in a Number Talk focused on subtraction strategies.

  • Math Mights - Kindergarten

    Use the 10-frame to increase your number sense. Play fun games called "Deck o' Dot Duel 10-frame" and "Same, Less, More." Engage in a Number Talk to find "how many" and to answer a secret question.

  • Math Mights - 1st Grade

    Solve addition and subtraction word problems with a Step-by-Step Visual Model checklist. Understand what the problem is asking to help you solve it. Engage in a Number Talk to find "how many" and to answer a secret question.

  • Math Mights - 2nd Grade

    Count up or down on an open number line. Explore a subtraction strategy and see if it helps you to subtract. Engage in a Number Talk.

  • Math Mights - 3rd Grade

    Explore area with partially tiled rectangles. Can you apply what you know about multiplication to figure out the area of the rectangle? Discover lots of different units that we can use to measure area. Engage in a Number Talk and compare your strategies with others.

  • Math Mights - Kindergarten

    Figure out if there are enough. Engage in a Number Talk to find "how many" and to answer a secret question. Play a fun "4 in a row" game with numbers and arrangements.

  • Math Mights - 1st Grade

    Solve comparison word problems using data we get from questions like, Which meal is your favorite, breakfast, lunch or dinner? Play a game to use data to determine if a statement is true or false. Engage in a Number Talk to find "how many" and to answer a secret question.

  • Math Mights - Kindergarten

    Written Number with Groups

  • Math Mights - 1st Grade

    Different Types of Word Problems

  • Math Mights - 2nd Grade

    Add & Subtract within 100

  • Math Mights - Kindergarten

    Write Numbers to Show How Many

  • Math Mights - 1st Grade

    Match Story Problems to Equations

  • Math Mights - 2nd Grade

    Match Strategies to Expression

  • Math Mights - 3rd Grade

    Find area of figures with missing side lengths. How will you decompose the figures into rectangles to find the area? Engage in a Number Talk and compare your strategies with others.

  • Math Mights - Kindergarten

    Count birds to tell if Dotson made a Mystery Math Mistake when representing the number of birds using a 10-frame [...]

  • Math Mights - 1st Grade

    Represent 8 using a number bond and 10-frame to help solve a Mystery Math Mistake. Use Notice and Wonder to [...]

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake to hunt for the mistake in adding two 2-digit numbers using a decomposition [...]

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Find Which One [...]

  • Math Mights - Kindergarten

    Count animals to tell if Dotson made a Mystery Math Mistake when representing the number of animals using a 10-frame [...]

  • Math Mights - 1st Grade

    Represent 10 using a number bond and 10-frame to help solve a Mystery Math Mistake. Use Notice and Wonder with [...]

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Find Which One [...]

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Use visual models [...]

  • Math Mights - Kindergarten

    Represent 6 with a 10-frame, dot card, and Rekenrek (counting buddy) to tell if Dotson made a Mystery Math Mistake. [...]

  • Math Mights - 1st Grade

    Represent 10 using a number bond and 10-frame with a missing addend. Use Notice and Wonder with a 10-frame, connecting [...]

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use strategies [...]

  • Math Mights - Kindergarten

    Use a 10-frame and Rekenrek (counting buddy) to tell if Dotson made a Mystery Math Mistake building "one less." Represent [...]

  • Math Mights - 1st Grade

    Represent a teen number using a number bond to solve a Mystery Math Mistake. Use Notice and Wonder with a [...]

  • Math Mights - 2nd Grade

    Warm up with a Mystery Math Mistake as you add two 2-digit numbers using a decomposition strategy. Think through creating [...]

  • Math Mights - 3rd Grade

    Warm up with a Mystery Math Mistake as you add two 3-digit numbers using a partial sums strategy. Use a [...]

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs your help with his number bonds. We will be counting pictures with ten and some more to answer the question "how many?"

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out the missing parts in his number bonds. We represent numbers 11-19 in more than one way.

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. with an addition mistake! We'll solve word problems with unknowns in different positions.

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. and Value Pak with an addition mistake! We'll also solve word problems and write equations to match.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake - T-Pops needs your help with subtraction! We'll find different coin combinations to make 100 cents.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake - T-Pops needs your help with subtraction! We'll solve addition and subtraction story problems involving money.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her division mistake? We'll compare fractions with number lines!

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her division mistake? We'll compare fractions that have the same numerator.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Numeracy Talk with Dotson working on the double ten frame. We compose numbers 11-19 using 10 ones and some more ones.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Numeracy Talk with Dotson working on the Counting Buddy Senior. We represent numbers with ten frames and dots or counters.

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a number talk with Abracus as we work on compensation. We'll sort, describe and create solid shapes.

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a number talk with Abracus as we work on compensation. We'll sort flat shapes and create a data display to represent our sort.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Number Talk with Abracus as we work on Compensation. We'll compare numbers and add or subtract with Springling and T-Pops. I wonder who's strategy will be most efficient?

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Number Talk with Abracus as we work on compensation. We'll add or subtract tens or hundreds.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a fun Fraction Number Talk. We'll measure length in halves or quarters of an inch.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a fun Fraction Number Talk. We'll measure length using a ruler marked with halves and quarters of an inch.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Numeracy Talk with Dotson seeing the Counting Buddy Senior but building what we saw on a double ten frame. We also show numbers 11-19 in different ways.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Numeracy Talk with Dotson seeing the double ten frame but building what we saw using a Rekenrek. We work with numbers 11-19 and write equations.

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a number talk with D.C. as we work on decomposing and composing to make a 10. We'll also explore what makes a shape a triangle, a rectangle, or a square.

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a number talk with D.C. as we work on decomposing and composing to make 10. We'll build a new shape from smaller shapes.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Number Talk with Value Pak as we work on partial sums. We'll find the difference between numbers with Springling.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Number Talk with D.C. and Value Pak. We'll add and subtract three-digit numbers with Springling and Minni and Subbi.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a fun Fraction Number Talk Sort. We'll also make sense of line plots with lengths in halves and quarter inches.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a fun Fraction Number Talk Sort. We'll have fun collecting data and creating our own line plot to represent our data.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her subtraction mistake? Next we'll use number lines to learn more about fractions that are whole numbers!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out his number bonds to match ten frames. We are going to have fun figuring out how many objects are in our collections.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake with D.C. He needs help figuring out his number sentences to match ten frames. We are going to work on answering questions about how many are in groups of up to 20.

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help Professor Barble with his word problem error! We'll also solve measurement word problems and compare lengths.

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help Professor Barble with his word problem. We'll also solve measurement word problems and comparie lengths.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake - T-Pops needs your help! We'll learn about coins and their values.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake - T-Pops needs your help! We'll learn about coins and their values as we combine them in different ways.

  • Join Ms. Askew for a Mystery Math Mistake. Can you find her division mistake? We'll use number lines, fraction strips, and area models to find equivalent fractions!

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her division mistake? D.C is going to help us understand how to decompose fractions to make a whole number!

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake. Can you help D.C. fix his problem? Next, make halves, thirds, fourths in different ways and discover a whole.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her multiplication mistake? Next we'll use number lines to learn more about fractions!

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Can you find her multiplication mistake? Next we'll use number lines to learn more about fractions!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake! Can you find her error? See how we can use math fingers to find 10 or how many more we need to get to 10 from a given number!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake! I wonder if she made a mistake in her drawing? Pack your bags - we're going camping! We'll see 10 friends, but some will be hiding in the tent. Can you figure out how many friends are hiding?

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. with his strategy! Next, we'll measure with different tools (connecting cubes and paper clips) and compare objects.

  • Math Mights - 1st Grade

    Join Mrs. Markavich with a Mystery Math Mistake - see if you can help D.C. with his strategy! Next, can you help us measure with different units (small and large paper clips, connecting cubes and small cubes)?

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake - Springling needs your help! Next, apply your knowledge of fractions to tell time by using half past, quarter till and quarter after.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a Mystery Math Mistake -Springling needs your help! Get ready to have fun telling time with analog and digital clocks in five minute intervals and using A.M. and P.M.

  • Math Mights - 3rd Grade

    Join Ms. Askew for a Mystery Math Mistake. Springlinng needs your help! Next we'll partition, locate and label non-unit fractions on number lines!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a subtraction word problem with Professor Barble! Next, get ready for some fun with using D.C. to find ALL the ways to break apart numbers.

  • Math Mights - Kindergarten

    Join Mrs. Gray for a subtraction word problem with Professor Barble! We are going to have some fun doing word problems with 2 parts. We will learn together why labeling word problems help us to understand what the problem is asking.

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a subtraction word problem with Professor Barble. Next, get ready to make sense of equations that have a missing part and look out for D.C. as we make a ten to solve addition easier!

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a missing addend word problem with Professor Barble. Next, we are going to look closely at addition problems to see when we make a new ten or when we don't. You will be an expert and looking carefully at addition problems!

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for some fun with Professor Barble doing a tricky comparison word problem. Next, we are going to explore triangles, quadrilaterals, pentagons, hexagons by sorting and naming a variety of shapes.

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for a word problem with Professor Barble that will make more sense with a visual model. Get ready to have fun using attributes like sides, corners, side lengths and square corners to create shapes!

  • Math Mights - 3rd Grade

    Join Ms. Askew for a division word problem with her friend Professor Barble. Next, get ready to start to explore fractions by learning about partitioning parts of a whole!

  • Math Mights - 3rd Grade

    Join Ms. Askew for a division word problem with her friend Professor Barble. Next, to see if you use fraction language to describe fractions (partition, equal parts halves, thirds). Then we are going to create fraction strips together so you have a tool to use while learning fractions!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a subtraction word problem with Porfessor Barble! We are going to take word problems to a new level with putting together and taking apart with both addends unknown. I wonder if you will be able to come up with ALL of the ways to solve!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a subtraction word problem with Porfessor Barble! Get ready to solve word problems more than one way. You will discover a pattern to help you understand word problems that can have multiple answers!

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a missing addend word problem with Professor Barble! Look out for two of our Math Might friends D.C. and Value Pak as they help us learn to add two-digit number in more than one way!

  • Math Mights - 1st Grade

    Join Mrs. Markavich for a missing addend word problem with Professor Barble! Next we are going to spend some quality time with Value Pak as we learn to add by adding tens-and-tens then ones-and-ones!

  • Math Mights - 1st Grade

    Join Mrs. McCartney for some fun with Professor Barble doing a tricky comparison word problem. Next we are going to explore 3D shapes by identifying and describing their attributes. We will even show you how to create a 3D shape with paper!

  • Math Mights - 2nd Grade

    Join Mrs. McCartney for some fun with Professor Barble doing a tricky comparison word problem. Next we are going have some fun with pattern blocks composing different shapes. How many ways can you make a hexagon?

  • Math Mights - 3rd Grade

    Join Ms. Askew for a tricky multi-step word problem with Professor Barble! Next we are going to explore non-unit fractions by looking at shaded parts, sizes of each part and finding the fraction represented in shaded parts.

  • Math Mights - 3rd Grade

    Join Ms. Askew for another multi-step word problem with Professor Barble! Next we will build fractions from unit fractions and play a fun game called Secret Fractions!

  • Math Mights - Kindergarten

    Join Mrs. Gray for a Mystery Math Mistake word problem. Get ready to have fun with 10 frames matching equations to compositions and decompositions of 10.

  • Math Mights - Kindergarten

    Join Mrs. Gray for Mystery Math Mistake word problem. Get ready to have fun with 10 frames by playing Shake Those Discs and figuring how many more are needed to make 10.