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Activity
Teaching 2 and 3 Year Olds

Valentine’s Counting and Color Sorting Activity

For Teachers Pre-K - 1st Standards
Reinforce the concept of one-to-one correspondence with a Valentine's Day-themed counting and color sorting activity. Scholars sort foam hearts by color—red, orange, yellow, green, blue, and purple—then count and place them on a number...
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Interactive
CK-12 Foundation

Inverse Functions: Definition of Inverse Functions

For Students 11th - Higher Ed Standards
Is the inverse of a function also a function? Pupils manipulate the graph of a function to view its inverse to answer this question. Using a horizontal and vertical line, class members determine whether the initial function is...
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App
One Billion

Math, Age 3-5

For Students Pre-K - 1st Standards
Jump start children's math education with this fun basic skills resource. Offering dozens of different touch-and-swipe activities with colorful graphics, this program is perfect for all young learners.
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Printables
K-5 Math Teaching Resources

Base Ten Cards (tens and ones)

For Students K - 2nd Standards
Strengthen your class's understanding of place value with this series of base-ten flash cards. Including illustrations representing a variety of numbers from 13 to 94, this resource can be used in many different ways to build the numbers...
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Lesson Plan
Curated OER

One-to-one Correspondence

For Teachers 7th - 12th
Students count and keep track of objects using one-to-one correspondence. By moving, touching and pointing to objects they organize counting to determine the number in a set accurately. This helps students to practice the skill of...
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Lesson Plan
Curated OER

Problem Solving Process: One-To-One Correspondence

For Teachers 1st
First graders observe and demonstrate a variety of problem solving strategies to solve problems involving one-to-one correspondence and whole numbers to 100. They discuss the steps of the problem solving process, and solve a word...
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Printables
Have Fun Teaching

Earth Day Number Practice 0-20

For Teachers Pre-K - 1st
How many trees can your pupils plant? Practice numbers 0-20 with several related activities. For the first, kids match images of trees to numbers. They then match the number symbols to number words, using a word bank. The final activity...
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Handout
K-5 Math Teaching Resources

Mini Math Word Wall

For Students K - 2nd Standards
Provide a little extra support for your emerging mathematicians with a personal word wall. Including graphics and images that support children with learning to count, identify colors and shapes, and read high frequency words, this 
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Printables
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K-5 Math Teaching Resources

Ten Frame

For Teachers Pre-K - 2nd Standards
Engage young mathematicians in building their number sense with this set of ten frame printables. Whether you're teaching pupils how to count, add, or subtract, these tools offer children tremendous support with developing their basic...
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Lesson Plan
Curated OER

Understanding 10: Backwards and Forwards

For Teachers Pre-K - 2nd
Help your young mathematicians completely master 10 by practicing one-to-one correspondence, number recognition, and recording numbers displayed. They make 10 with groups of two-different colored cubes and color in 10-frames to show how...
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Printables
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2
Curated OER

Penguin Man

For Teachers Pre-K - K Standards
These penguins are hungry and it's the job of your young mathematicians to feed them. Each of these large penguin templates has a number printed on it corresponding with the number of goldfish crackers students need to place on it. This...
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Lesson Plan
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Curated OER

Half Math Quilt

For Teachers 3rd - 4th Standards
Help your third graders become familiar with equivalent fractions for one-half by having them create a quilt. They will use triangles to create a quilt of equivalent fractions over a period of 6 days. As they create the quilt pieces they...
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App
Oddrobo Software

King of Math Junior

For Students K - 6th Standards
Do your students have what it takes to be the king of math? Find out with this fun skills practice game that covers a wide range of topics from counting and basic operations to measurement and fractions.
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Lesson Plan
Institute for Teaching through Technology and Innovative Practices

The Right Number of Elephants

For Teachers Pre-K - K Standards
How can you tell if a number of items is reasonable? Combine math and language arts with a fun activity based on Jeff Shepard's The Right Number of Elephants. After reading the book, kids discuss amounts of other items and create...
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Activity
1
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Oregon Department of Education

Building Number Sense

For Teachers Pre-K - 1st Standards
It's never too early to begin a child's math education. This collection of fun hands-on activities engage youngsters in building their number sense as they learn how to count objects, identify numerals, compare amounts, and much more.
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Activity
Curated OER

K-5 Mathematics Module: Number and Number Sense

For Students K - 5th Standards
Reinforce number sense with a collection of math lessons for kindergarteners through fifth graders. Young mathematicians take part in hands-on activities, learning games, and complete skills-based worksheets to enhance proficiency in...
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Worksheet
Curated OER

Mental Math: Adding 10s

For Students 1st
To develop mental math skills for adding 10s, learners read an example, solve one carefully scaffolded problem, and then complete 6 more independently. Pictures of 10-rods make the connection between sets of 10 and the corresponding...
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Lesson Plan
Perkins School for the Blind

Counting Cups

For Teachers K - 6th
Teach one-to-one correspondence, fine motor, and counting skills to your learners with visual disabilities. Included are a set of activity suggestions, which are useful when teaching a variety of different early math skills. Braille,...
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Interactive
CK-12 Foundation

Existence: One-to-One Functions and Inverses

For Students 11th - Higher Ed Standards
One-to-one means the answer is simple, right? Given four graphs, pupils use a vertical line to test each graph to find out if they are one-to-one. By using the resource, learners realize that not all one-to-one relations are functions....
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Printables
K-5 Math Teaching Resources

Ten Frame Cards

For Students K - 2nd Standards
Support your visual learners on their journey to mathematical understanding with this collection of ten frame cards. Representing numbers from 1 to 42, these pictures can be used in any number of ways to introduce children to the concept...
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Worksheet
Curated OER

Count the Pictures: Numbers to 10

For Students K - 1st
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...
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Lesson Plan
EngageNY

Using Sample Data to Compare the Means of Two or More Populations

For Teachers 7th Standards
Determine whether there is a difference between two grades. Teams generate random samples of two grade levels of individuals. Groups use the mean absolute deviation to determine whether there is a meaningful difference between the...
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Lesson Plan
Curated OER

Pigs in a Pen

For Teachers K
Kindergarteners explore numbers, counting, and one-to-one correspondence. Through demonstrations and hands on activities using math manipulatives, they discover several number concepts as well as practice counting throught rote...
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Lesson Plan
Curated OER

Grab a Handful and Count

For Teachers K - 1st
Let's use Fruit Loops to teach counting skills! Pupils practice counting one-to-one correspondence using Fruit Loops with a partner and then compare them to see who has more or less.