EngageNY
Replacing Letters with Numbers
When did letters become the same as numbers? Scholars learn about substituting numbers for letters to evaluate algebraic expressions in the seventh part in a series of 36. The activity focuses on expressions related to geometry, such as...
Curated OER
Finding Equivalent Forms For Positive Rational Numbers
Learners discuss the relationship between and the equivalent forms of rational numbers. They will convert numbers from decimals to fractions, understanding they are equivalent, but just different forms.
Computer Science Unplugged
Count the Dots – Binary Numbers
Did you know you can send a message using only zeroes and ones? This interactive resource presents an introduction to binary numbers. Through code cards, pupils learn to convert binary numbers to decimal numbers.
Illustrative Mathematics
Representing Half of a Circle
Geometric shapes make great visual models for introducing young mathematicians to the concept of fractions. Looking at a series of four circles, students are asked to determine whether or not one half of each circle is shaded. To support...
Houghton Mifflin Harcourt
Unit 2 Math Vocabulary Cards (Grade K)
Looking for some math vocabulary cards for young mathematicians? A set of 18 vocabulary cards is a great addition to a kindergarten math lesson. The top half of each sheet contains the word in bold text, while the bottom is a picture...
Houghton Mifflin Harcourt
Unit 4 Math Vocabulary Cards (Grade K)
In need of a set of math vocabulary cards for beginning mathematicians? Use a resource that contains 15 vocabulary cards. The top half of each sheet has the word printed in bold text, while the bottom is a picture representing the...
Curated OER
Represent Mixed Numbers on a Number Line
See fractions visually with these eight images, each of which has a matching numerical fraction. The images have a row of objects representing the numerator and denominator. This is a nice way to show what a fraction actually means.
Curated OER
Represent Mixed Numbers on a Number Line
This number line sequence is missing a few mixed numbers. Scholars determine what the increments are between each segment and use the pattern to complete the sequence. They must count by quarters and write in mixed numbers. Because there...
Curated OER
Number Lines and Whole Numbers
Number lines come in handy once again! Use them to help scholars visualize addition and subtraction problems. They examine five lines to determine which equation each represents, then match them to a list of answers. Consider covering...
Curated OER
Pattern Puzzles
A short video introduces place value in addition and subtraction. As a class, your students identify all even numbers up to one hundred and explain the pattern. They use addition strategies to fill in the missing numbers on the number grid.
EngageNY
Complex Numbers and Transformations
Your learners combine their knowledge of real and imaginary numbers and matrices in an activity containing thirty lessons, two assessments (mid-module and end module), and their corresponding rubrics. Centered on complex numbers and...
EngageNY
Complex Numbers as Vectors
Show your math class how to use vectors in adding complex numbers. Vectors represent complex numbers as opposed to points in the coordinate plane. The class uses the geometric representation to add and subtract complex numbers and...
Illustrative Mathematics
Naming the Whole for a Fraction
How many different ways can you represent a whole? In a picture that represents six parts (two of which are shaded), learners are asked to label the parts appropriately to show how three different mathematical interpretations can be...
Curated OER
Representing Fractions, Decimals, and Percents
In this fractions, decimals, and percents lessons, students explore various methods of representing fractions. They demonstrate situations that represent rational numbers. Students create a foldable exploring fractions, decimals and...
Illustrative Mathematics
Converting Decimal Representations of Rational Numbers to Fraction Representations
A rational number is a ratio of two integers. Discuss with your class how to convert the rational numbers of repeating decimals to fractions. A good commentary on letting x equal the repeating decimal and multiplying each side of such...
West Contra Costa Unified School District
Adding Numbers
Support math instruction at home with a helpful reference sheet designed for parents. Three pages cover the subject of addition with written details and labeled pictures.
Curated OER
Powers and Roots of Complex Numbers
Explore a few powers of complex numbers numerically and decide if there is a pattern and use parametric equations to represent a complex number graphically. Use De Moivre's theorem to represent the roots of the complex number...
Curated OER
Number Lines and Whole Numbers
Number lines are a great way to help scholars grasp basic addition when it's still a new concept. This worksheet offers them 10 chances to practice this association. The first five have an addition equation and a number line; learners...
Willow Tree
Patterns - Numbers, Shapes, etc.
Find the pattern is the name of the game! Learners examine different patterns represented by numbers, shapes, and words. They must describe the pattern, predict the result in a given position, and find an equation that represents a...
Curated OER
Sharing Brownies: Fractions That Represent a Fair Share
Elementary graders discover the concept of fractional pieces of a whole. They investigate the meanings of fractions in everyday life and why they are used. Pupils divide brownies amongst each other to demonstrate the use of fractions...
K-5 Math Teaching Resources
Small Ten Frame Cards with Dots
Solidify your mathematicians' addition and subtraction skills using this ten frame printable. Here, you'll find small, ten frame cards with dots representing numbers 11 to 22, equipped to enhance math strategies and boost proficiency.
Virginia Department of Education
Properties of Real Numbers
Students use paper cups and colored chips to observe properties of operations with real numbers. As a class, students brainstorm and use manipulatives to demonstrate associative, commutative, distributive identity and inverse properties....
Illustrative Mathematics
Plastic Building Blocks
Let's build a castle! Dennis and Cody have big plans, but do they have enough blocks between the two of them to accomplish their goal? A great context that requires students to add and compare mixed numbers. Encourage the use of pictures...
K-5 Math Teaching Resources
Numeral Cards 1-12
The learning opportunities are endless with these numeral cards representing numbers one through twelve. With a clean and clear design, you have flexibility in how and when you choose to implement them.