Curated OER
Counting with Base - Ten Models
Help your kids develop strategies for counting. In this base-ten lesson, learners use matching cards, base 10 blocks, and dry erase markers and boards to examine the base 10 counting system.
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...
Curated OER
Number Base Clocks
Students investigate place value in base ten. In this number sense lesson, students participate in an online lesson at www.shodor.org/interactivate/activities/NumberBaseClocks and demonstrate how to convert numbers from base ten to other...
Curated OER
Primary Understanding and Use of Place Value
Explore place value and regrouping with your class. They develop awareness of several ancient number systems and how they differ from the base ten system commonly used today. They play "Chip Trading" with partners to practice addition...
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...
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...
Curated OER
Block Heads
Learners demonstrate whole numbers through one thousand using base ten blocks. They model and describe given numbers using ten blocks.
Curated OER
Read, Write, and Draw
Numbers come in many forms, and they often appeal to different types of leaners. Explore these forms through six place-value problems which have youngsters represent values numerically, in word form, and through base-ten blocks. They...
Curated OER
Place Value & Picasso
Place value to the millions is the focus of this math lesson. Third and fourth graders investigate multiple ways to represent a number. They examine place value while studying factual information about Pablo Picasso. Resources are provided.
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...
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...
Curated OER
The Hundreds Place
Break up numbers into place value to help your scholars comprehend three-digit numerals. There are three problems here, and the large text and visuals make it ideal to project as an all-class warm up. Learners first identify the value of...
Curated OER
Reading and Writing Numbers
Review numerals and written numbers. Here is a worksheet that features four sections of problems for youngsters to figure out. They write out eight 3-digit numbers, and provide 3-digit numerals for eight written numbers. A great way to...
Curated OER
Math: Working with Mayan Numbers
Students simulate a Mayan market place, and "purchase" items. They keep a record of their purchases and total number of beans left in their account. Students then convert the Mayan base system into the base ten system. This lesson...
Curated OER
Expanded Form
Explore place value through re-writing these two-digit numbers in expanded form. For example, 47 becomes 40 + 7. There is one example to model this, and scholars complete 14 more on their own. Be sure they understand this process as...
Curated OER
The Hundreds Place
Observe numbers in four different forms. Scholars become more familiar with place value as they match the numbers on the left with those on the right. The twist is that the numbers are shape-shifting! Some are in expanded form, others...
Curated OER
Understanding 10: Backwards and Forwards
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...
Code.org
Number Systems
Generating a system of shapes. Groups work together to create a number system using three different shapes as symbols. The groups should come up with the rules that generate all the possible permutations of the three shapes.
Curated OER
Understanding Place Value, Up to 3-Digit Numbers
Work on place value and addition. Here is a resource that features different types of problems for your second graders to solve. After studying the example at the top of the page, they write the missing number in 12 addition problems....
Curated OER
Living in Base Ten
Middle schoolers explore scientific notation and the structure of the metric system. In this middle school mathematics instructional activity, students read How Much is a Million? by David M. Schwartz to introduce middle schoolers to...
Curated OER
Number Patterns in Everyday Life
Examine scenarios involving number patterns. Learners complete a series of activities, including working with Pascal's triangle ando completing chart activities based on different pricing for pizza toppings. An included extension has...
Curated OER
All Kinds of Numbers
Count and compare numbers and fractions using "greater than" and "less than." Learners count on by 2s and 10s and represent the end number with base ten blocks, counters, and cups. They use circle stickers to illustrate fractions and...
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...
Curated OER
Decimal Models
Before jumping into numeral decimals, explore them visually using this base 10 strategy. There is a set of examples to help scholars understand the concept. They color in grids to represent decimals written in a variety of ways. Some...