K-5 Math Teaching Resources
Base Ten Cards (tens and ones)
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...
Curated OER
Place Value Tens and Ones
Young scholars use manipulative to identify the ones and tens digit in a number, use pictorial representation to identify the ones and tens digit in a number and determine the value of a number given tens and ones.
Curated OER
Tens and Ones Fun
Youngsters use their large motor skills to build numbers to 20 in this outdoor, kinesthetic, collaborative activity. Amass cardboard boxes for groups to stack, sort, and bundle into 10s and 1s to show numbers and place value. They'll...
Curated OER
Study Buddies: Counting Back Tens and Ones
In this math worksheet, students will work with a coach to solve a problem in which they must subtract by counting back by tens and ones. Students will follow a step-by-step process and notes are provided for the coach.
Illustrative Mathematics
Roll & Build
Develop young mathematicians' understanding of place value with this hands-on math activity. Working in pairs, learners take turns building two-digit numbers by rolling two ten-sided dice. Base ten blocks are then used to model the...
West Contra Costa Unified School District
The Power of Ten: Building a Magnitude Model
Add visual representation to teaching place value with a magnitude model. Using adding machine tape, pupils build a linear place value strip from 1 to 100.
Curated OER
Counting On Tens or Ones
In this mathematics worksheet, 1st graders count on tens or ones. They identify how many ones and tens that they are counting for each. Then, students write the sum for each problem.
Alabama Learning Exchange
Place Value Party
Help your young mathematicians master three-digit place value with a hands-on activity that builds on their social orientation. They create a place value house from construction paper and sort "number friends" according to which house...
Curated OER
Building Numbers 11-40
In this building numbers instructional activity, students fill in the table using the base ten and square unit blocks to build numbers. Students write the numbers into the tens and ones block.
Curated OER
Number Rods
Working in a math center or an "I finished early" work station, young mathematicians will match in sequence pre-set-up rods of unifix cubes to numbers on a number line. To help differentiate tens from ones, use different colors to...
Illustrative Mathematics
Comparing Numbers
Young mathematicians spin their way to a deeper number sense with this fun, collaborative activity. Using two spinners, one with the numbers 0-9 and the other with the decades 00-90, pairs of students take turns building and comparing...
Curated OER
Ways to Make Hundreds
How many ways can you make 200 using 1s, 10s, and 100s? Learners will build number sense, a basic understanding of place value, and prep for future lessons on expanded form with this simple worksheet. They are given 6 numbers, they write...
Curated OER
Race to 50/100
Second graders practice utilizing multiple tens frames and dice to race to fifty or one hundred. They calculate tens and ones to find out how many counters they have on their grid and how many more they need to get to fifty or one...
Illustrative Mathematics
Bundling and Unbundling
Seven tens, plus five ones, equals 75. Five ones, plus seven tens, also equals 75. These are the types of equations learners are asked to make true in a activity with 11 unfinished equations.
Curated OER
Place Value - What Is the Value of the Place?
Second graders build number sense in an activity that requires the matching of base 10 representations to numbers. It is the teachers responsibility to gauge student understanding and involvement while class members work in groups.
Curated OER
Seeing Numbers In Tens And Ones
Second graders develop the skill of place values up to the tens place. They practice identifying the values of 2 digit numbers and writing the correlating values with counting. They use the example of money to make the lesson more...
New Mexico State University
Gate
Build numbers with place value to save the day. Pupils use the keyboard to control the digits in the hundredths through hundreds place to create target numbers to destroy shadows. As participants build the numbers, a number line shows...
Curated OER
Representing Numbers to 50
In this mathematics worksheet, 1st graders identify two-digit numbers that show tens and ones. Then they write how many tens and ones there are and place the number in the boxes given.
Curated OER
The 9's times tables finger trick
Kids love short-cuts and this one is an oldie but a goodie. The 9's times tables finger trick is demonstrated using images of a child's hands, the multiplication problem represented, and how tens and ones are represented by each finger....
Curated OER
Calculator Activity: Build Up
In this using a calculator to solve problems worksheet, learners observe examples of building up, follow directions for using a calculator, and write the numbers for tens and ones. Students solve three problems.
Curated OER
Area Model of Multiplication Using Base 10 Manipulatives
Explore two-digit multiplication with your class as they work in groups to build models of two-digit multiplication using base 10 manipulatives. They construct rectangles replacing standard numbers with equivalent place values using the...
National Security Agency
Expanding Place Value
Learners explore place value. This incredibly thorough and valuable mathematics instructional activity, has students make a number wheel to assist in the completion of a Place Value worksheet. Students use manipulatives and a place value...
National Security Agency
Place Value for Primary Grades- A Place for Everything
Here is a phenomenal instructional activity on place value to the thousands place. Learners construct numbers and identify the value of each digit, investigate building numbers using craft sticks and paper plates, and complete other...
Willow Tree
Rational vs. Irrational Numbers
Build an understanding of rational numbers and their counterpart irrational numbers. Lead learners through an explanation of rational numbers and the ways they can be expressed. Then introduce them to irrational numbers and make...