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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
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.
Curated OER
Math: Number Systems
Young scholars examine other number systems, particularly the binary number system. They discover how to convert from decimal to other base systems. Students analyze the advantages and disadvantages of using the coded decimals.
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Problem Solvers
Fifth and sixth graders compare decimals to the place-value structure in the base-ten number system. They represent fractions as parts of unit wholes, as parts of a set, as locations on a number line, and as divisions of whole numbers....
Curated OER
Place Value of Whole Numbers Through One Million
Third graders construct numbers to the millions place. In this 30-page place value lesson, learners create numbers and evaluate the place value of digits. They explore standard and expanded form of numbers. An incredible resource!
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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
Subtraction with Regrouping Lesson Plan
Learners explore regrouping while subtracting. In this subtraction lesson, pupils manipulate base 10 blocks to demonstrate regrouping. Multiple resources are provided.
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Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson has learners construct, order, and compare numbers to 9,999. This three-day lesson includes reteaching and extension activities...
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Playing the Cards of Place Value
Third graders explore place value to the ten-thousands place. For this amazing, 21-page place value lesson, learners represent numbers in standard and expanded form, and use technology to represent numbers to 9,999.
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Getting to Base 10
Students compare and contrast number systems from around the world. They study the decimal system to design and create their own base 10 sticks. Afterward, they use base 10 sticks to solve various addition and subtraction problems.
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Number and Number Relations: Lesson 1
In a detailed format, this plan walks learners through an introduction to place value. They explore place value words and concepts and recognize patterns in the number system. Students identify a number when given a number word. They use...
Curated OER
Place Value & Picasso
Place value to the millions is the focus of this math lesson plan. Third and fourth graders investigate multiple ways to represent a number. They examine place value while studying factual information about Pablo Picasso. Resources are...
Curated OER
Add It Up In Number Ville! Adding 2-Digit Numbers With and Without Regrouping
Students explore adding 2-digit numbers. In this math instructional activity, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
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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...
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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...
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Roman Numeration
Gain a deeper understanding of the base 10 system through practicing conversion to Roman numerals through one million. The class is taught how to read the numerals through modeling and guided practice. This lesson includes a homework...
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Planets in our Solar System
A wonderfully designed, and very thorough lesson plan on the planets in our solar system. Designed for third graders, this lesson has learners use technology and multimedia tools to research, explore, and create information about the...
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Exploring Place and Space
Students explore number values by completing mathematical worksheets in class. In this decimals lesson, students identify the different place values a number has and the use of decimals to represent a fraction of a number. Students...
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Block Heads
Students demonstrate whole numbers through one thousand using base ten blocks. They model and describe given numbers using ten blocks.
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BASE-ic Space Travel
In this 3-day place-value lesson, upper-elementary kids investigate the base 5 and base 2 systems as an introduction to exponents and powers. They create a pocket chart to help ground their understanding of bases, exponents, and powers,...
Center for Math and Science Education
Solar System Launch
Trying to understand the vastness of outer space can be quite a challenge for young scientists. Help put things in perspective with this cross-curricular activity as students work in pairs creating scaled models of...
Education Development Center
Micro-Geography of the Number Line
Young mathematicians dive into the number line to discover decimals and how the numbers infinitely get smaller in between. They click the zoom button a few times and learn that the number line doesn't just stop at integers. Includes...
Curated OER
Titration: Standardization of a Base and Analysis of Stomach Antacid Tablets
Titration experiments don't have to give your high schoolers a stomachache. Study the ways to titrate an acide with a base in an engaging science experiment, which involves creating solutions and performing titrations. Pupils...
Curated OER
Babylonian Number System
In this Babylonian number system instructional activity, students read an explanation of the number symbols used by Babylonians and respond to 3 questions regarding the information presented.