Curated OER
The Part-adder 1
Second graders investigate the addition of whole numbers. They mentally perform calculations involving addition and subtraction. They make sensible estimates and check the reasonableness of answers.
Curated OER
Bean Addition
A hands-on lesson created students use beans as manipulatives to solve addition number sentences. Requires the book, Mission Addition by Loreen Leedy.
Curated OER
Title Balancing With Tidy Numbers
Students use math manipulatives (ice block sticks) to show the addition of two 2-digit numbers. They discuss short-cuts that might be used to make the problem easier. they apply the same principle for adding larger numbers, as well.
Curated OER
Basic Equivalencies
First graders manipulate coins to show equivalencies between pennies and dimes. Given specific values, 1st graders model the specified amounts by using pennies and dimes. Through use of a computer assisted trading coins, students...
Curated OER
Teaching Place Value
Utilizing mathematical literature and games are two excellent ways to introduce and teach place value.
Texas Instruments
Texas Instruments: Food for Thought
In this activity, students learn to count in tens up to 100. They also learn to build 2-digit numbers.
ICT Games
Ict Games: Fairground Target Game: Counting by Tens
Count the duck targets by tens and click on the one in line that is the same as the number listed on the target at the bottom of the screen.
E-learning for Kids
E Learning for Kids: Math: Inca Temple: Number: Count to 100
Inca temples are made up of lots of blocks! Visit Cava and help her count the blocks and arrange them properly. You will practice writing 2-digit numbers, putting a set of 2-digit numbers in order, and counting forwards by tens.
PBS
Pbs Kids: Curious George's Busy Day: Museum of Tens Game
Each display in the museum has 10 items in it, but some are missing. How many do you need to add to make 10? Can you do the math?
Better Lesson
Better Lesson: Tubing Tens Cool Off With an Imaginary River Adventure
If you know how to count by tens, you can solve multiplication problems in which ten is a factor.
ClassFlow
Class Flow: Counting in Twos, Fives, and Tens
[Free Registration/Login Required] Counting in twos, fives and tens. * Describe and extend number sequences. * Count forward in twos from zero and then from one. * Count in steps of five from zero to twenty or more. * Counting,...
Better Lesson
Better Lesson: Constructing Tens and Ones
Students get a hands-on, minds-on experience with counting, while also constructing an understanding of tens and ones. This lesson includes a detailed plan, a link to a song about teen numbers, a video showing students engaging in...
Rice University
Rice University: Let's Count!
Let's Count is a website that offers opportunities to count lots of different sets of things. You can also view the same website in Spanish.
ClassFlow
Class Flow: Count On
[Free Registration/Login Required] Pupils complete the sequences, counting forward or backwards in tens or hundreds.
CK-12 Foundation
Ck 12: Elem Math: Representing Numbers in Expanded Form Ii (Grade 4)
[Free Registration/Login may be required to access all resource tools.] This learning module features an interactive, a video, and a practice quiz in which students identify the ones, tens, or hundreds digit of a value by counting the...
Quia
Quia: Spanish Numbers by Ten
If you can count by tens in Spanish, then you'll enjoy this interactive number game. Put the Spanish numbers in the correct order to win the game, then check your answers.
NumberNut
Number Nut: Numbers and Counting: Counting to 50
Did you know that counting and all numbers are based on tens and that everything starts over when you hit a number with a "0" in the ones column? This lesson provides strategies and pattterns for counting to fifty and includes two...
NumberNut
Number Nut: Numbers and Counting: Counting to 1,000
Follow the steps in the examples for place value to the thousands place and then practice the skills with the two interactive activities.
Khan Academy
Khan Academy: Numbers to 100
Practice finding missing numbers in a list of numbers between 0 and 100. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
A to Z Teacher Stuff
A to Z Teacher Stuff: Estimation Station (Lesson Plan)
A hands-on lesson plan for grades K-3 on estimation using goldfish crackers. Lesson used in conjunction with an oceans unit.
ClassFlow
Class Flow: Counting Place Value
[Free Registration/Login Required] In this lesson students will understand place value by moving chips into the correct place. They will change numbers by 1000, 100, 10 or 1 by adding or taking away chips.
Alabama Learning Exchange
Alex: Souper Scooper
This hands-on, inquiry based lesson is an extension of the AMSTI Science Module, Solids and Liquids. Young scholars use nonstandard units to measure beans in a soup mix. Students predict how many beans will be in a scoop. Young scholars...
ICT Games
Ict Games: Shark Numbers
Shark Numbers is a mobile-friendly place value game. The learning objective of this game is to know what each digit in a 3-digit number represents, (for ages 5-8).