Curated OER
Base Ten Blocks - Representing Numbers (E)
In this representing numbers activity, students find the value of each group of base ten blocks. Students solve 4 problems to help them learn how to represent numbers.
Curated OER
Playing the Cards of Place Value
Third graders explore place value to the ten-thousands place. In this amazing, 21-page place value instructional activity, learners represent numbers in standard and expanded form, and use technology to represent numbers to 9,999.
University of Utah
Rational and Irrational Numbers
Conquer any irrational fears you might have of irrational numbers. As class members investigate how to represent numbers geometrically, they learn about rational and irrational numbers, including approximating and ordering rational...
Curated OER
Place Value of Whole Numbers Through One Million
Third graders construct numbers to the millions place. In this 30-page place value instructional activity, learners create numbers and evaluate the place value of digits. They explore standard and expanded form of numbers. An incredible...
Curated OER
Base Ten Blocks - Representing Numbers (A)
In this math worksheet, students solve four problems about base ten blocks. Students write in the value of the base ten blocks shown in each picture.
Alabama Learning Exchange
Imaginary Numbers? What Do You Mean Imaginary?
Don't worry, this resource actually exists. Scholars learn about imaginary numbers and work on problems simplifying square roots of negative numbers. As an extension, they research the history of imaginary numbers.
CK-12 Foundation
Sums of Finite Arithmetic Series: Triangular Numbers
Using a slider, scholars build triangular numbers and their associated rectangles and use the geometric display to find the pattern to determine the next triangular number. They then relate that number to the area of the rectangle to...
Curated OER
Building Numbers to 50
Students explore how to represent numbers using cubes and draw them accordingly. They discuss place value and the base ten number system using manipulatives. Students roll a dice and take that many blocks. They write down their resulting...
Inspired By Kindergarten
Numbers 1-10
Preschoolers and kindergartners can master numbers 1-10 with a set of math worksheets. Each page features one number that kids trace, represent with tally marks, and write what number they will have after adding or subtracting 1.
Curated OER
Numbers in Spanish
Spanish learners can start with uno, dos, y tres and move all the way up into the millions and trillions on their way to learning all the numbers. The webpage includes information on cardinal numbers, ordinal numbers, fractions, and...
Curated OER
Learning Even and Odd Numbers
In this math lesson, young learners receive a numeral written on a paper and arrange themselves in chronological order. They illustrate skip counting by 2's, 5's, and 10's using their numerals and then complete an individual 100 chart by...
EngageNY
Even and Odd Numbers
Even or not, here I come. Groups investigate the parity of products and sums of whole numbers in the 17th lesson in a series of 21. Using dots to represent numbers, they develop a pattern for the products of two even numbers; two odd...
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
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 activity offers them 10 chances to practice this association. The first five have an addition equation and a number line; learners...
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...
Curated OER
Mixed numbers and Improper Fractions
What do you get when you combine chocolate bars and math? The answer: A great lesson on improper fractions and mixed numbers! Learners discuss the differences between whole numbers and fractions, then use images of scored chocolate bars...
Curated OER
Plotting Numbers and Test
Sixth graders create a human number line. They determine the correct placement of various numbers ranging from -4 to 4. Additionally, they will determine the placement of numbers written as fractions and/or decimals.
Curated OER
Ordinal Numbers
Introduce ordinal numbers with this simple teaching tool. Young mathematicians trace numbers from 1 to 5. Then they circle the object in a row of 5 that represents the numerical place of the number they just traced. Example: Students...
Curated OER
Comparing and Ordering Fractions, Mixed Numbers, and Decimals
Create your own fraction kits by folding and labeling paper using fraction vocabulary. Learners then work in groups to use these in comparing and sequencing both whole numbers and fractions. They also create unit cubes and develop an...
Curated OER
Count the Pictures: Numbers to 10
Help your young learners master 1:1 correspondence by counting pictured objects, and to communicate answers in multiple choice format. Given a number, they choose which of 3 rows of objects is the correct match. Four opportunities to...
Illustrative Mathematics
Irrational Numbers on the Number Line
There are four irrational numbers that participants need to graph. Pi(π), -(½ x π), and √17 are easy to approximate with common rational numbers. On the other hand, the commentary describing the irrational number 2√2 is not clear. It...
K-5 Math Teaching Resources
Subtracting Mixed Numbers (Unlike Denominators)
Young mathematicians demonstrate their ability to subtract mixed numbers by completing this collection of fraction word problems. From figuring out the weight of objects in a package, to finding the difference in height between two...
Illustrative Mathematics
Looking at Numbers Every Which Way
Assess class members' ability to look at numbers every which way. A helpful learning exercise contain four tasks, including writing numbers as a sum of 100's, 10's, and 1's, and drawing a picture to represent the number.