Oregon Department of Education
Building Number Sense
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.
Curated OER
K-5 Mathematics Module: Number and Number Sense
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...
Illustrative Mathematics
Hundred Chart Digit Game
Math games, especially in the primary grades, provide great opportunities for developing the number sense of young mathematicians. Working in pairs with a deck of single-digit cards, students take turns drawing two cards and reading the...
Curated OER
Counting in Kindergarten: Make Number Books
Emergent math masters practice 1:1 correspondence, number recognition, and quantity-to-number relationships. They view number flashcards, state the correct number name, and circle the corresponding numeral to represent the number of...
Scholastic
Adding and Subtracting Ten
Developing fluency with basic addition and subtraction is fundamental to the success of all young mathematicians. This four-day lesson series begins with learners using ten-frames and hundreds charts to recognize patterns when adding and...
Illustrative Mathematics
Assessing Sequencing Numbers
Assess whether your kindergartners can identify numbers in random order using two sets of numeral cards 1-10 and 11-20. Starting with a small group and the 1-10 deck give your learners the task of putting the cards into order from...
Curated OER
Number Patterns
Help your young scholars to identify even and odd numbers. For this number sense lesson, they read the book Madeline and use counters to identify which number has a "partner." Learners write down odd and even numbers on a whiteboard.
Curated OER
How Much Is A Million
Help young learners visualize the concept of "a million." To convey concepts of numeration and literacy, they will listen to the book How Much is a Million? by David Schwartz. They should be able to make self-to-text connections....
Curated OER
Counting Mat
Using the provided counting mats (1-6 and 7-12) and small objects to count with, guide your young learners to match the correct number of objects to the written numeral and dots. Class members will either read the numeral and count out...
Curated OER
Counting Squares
Build solid foundational skills by counting to ten. Each slide contains concrete objects to count and both the numeric and word representation of each item counted. For example: Learners will count 2 red squares, see the number 2 and the...
Curated OER
Tens and Units
Images of base ten blocks are used to reinforce counting past 10. Learners will count along, adding units to each 10 as they go from 10 to 30. Each number is shown on a 100 block, as blocks of 10s and 1s, and in numeric form as tens and...
Curated OER
Recognizing Numerals and Numbers
Students develop number sense as well as number and number symbol awareness. Through various center activities, they practice recognizing the number symbol that is associated in a particular quantity. Instructions for four center...
Curated OER
K-1 Numeral Recognition
Students investigate numerals by creating visual aides. In this number sense lesson, students discuss the different types of numerals and how they can be translated into a number or an image. Students create a children's book using...
Curated OER
More or Less
Freddy the Frog helps little learners determine which number comes before and which one comes after. He hops around a number chart and children write down the number one less and one more than where he has landed. This is a very cute way...
Curated OER
Developing Number Concepts
Children count and group a set of beans, sorting into groups of 10 and noting the number that remains. Young scholars understand the concept of numbers greater than ten, and play a game, guessing numbers greater than 10 using hints given...
Curated OER
Ten by Ten
Learners participate in hands-on activities using a hundreds chart and counting toes and fingers. They discover the patterns that are created when counting by ten. After a lecture/demo, students practice by using a worksheet embedded in...
Curated OER
How Many Raisins?
Students study the concept of addition. They create verbal number stories with numbers from one to five. They draw a slice of bread with a line down the middle and cut the bread shapes out of a "slice of bread" and a handful of raisins,...
Curated OER
Math-Literature Connection: Counting with Jack the Builder
Connect literature (Jack the Builder) with mathematical concepts. In a series of computation, geometry and number sense activities, pupils count on to add, count back to subtract, build cylinders, cones, and rectangular prisms, and name...
Curated OER
Guess That Sequence!
Students analyze number sense by participating in a pattern identification activity. In this number sequence lesson, students examine several groups of numbers and identify the sequence in the group before adding on to it. Students check...
Curated OER
Zero Is Our Hero
Students engage in a lesson that is concerned with the mastery of counting by ten's. They practice counting to varying quantities not to exceed 100. Students could also use manipulatives that are separated into groups of ten.
Curated OER
Numeracy
Students review numbers, number systems and the number operations through the use of online webpages.
Curated OER
100 Day Chick Hunt
Students investigate how to count to the number 100 with the connection to using chicks as objects. They use cutouts of chicks and place them into the counting chart and recognize the different numerals while counting at the same time.
Curated OER
Counting Zero to Five
Students are introduced to the numerals zero through five. They associate the numeral with the correct number of objects. Students comprehend the quantities zero through five showing "How many?" by counting their fingers or using a...
Curated OER
Easter Counting Worksheet
In this counting activity, students count the Easter eggs in the picture, then color or circle the correct numeral from a given set of 2 to 5.