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
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.
Partnership for Educating Colorado Students
Mayan Mathematics and Architecture
Take young scholars on a trip through history with this unit on the mathematics and architecture of the Mayan civilization. Starting with a introduction to their base twenty number system and the symbols they used, this eight-lesson unit...
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 lesson, students identify 2-digit numbers and use base ten blocks to practice adding. Students use addition to break a code.
Curated OER
Solar System
Explore the solar system in detail, from it's origins to its components. Visual data gathered by actual space missions has been used to create the images and animations on each page of this stellar electronic book about the solar...
Curated OER
Math: Number Systems
Pupils 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.
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
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
All Systems Go!
Secret codes are so much fun, and a great way to practice nearly any math skill. Let your class become code breakers as they investigate inverse matrices. They use TI-Nspire technology to solve systems of equations which help them crack...
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!
Curated OER
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...
Curated OER
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
Lesson 4: The Judiciary: A Brief Introduction to the Courts System
Focusing on the judicial branch of government, the fourth lesson in this series explores the structure of the US courts system. Beginning with an engaging activity based on the short story The Lady or the Tiger, students go on to examine...
Curated OER
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
Numeracy
Students review numbers, number systems and the number operations through the use of online webpages.
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 the solar system,...
Curated OER
Metric System Basics
Do your learners know that there are different systems to measure length, volume, and weight? Explain metric measuring and its base ten decimal system using this comprehensive set of worksheets! For all three types of measurement,...
California Academy of Science
Sorting the Solar System
Scientists are always sorting and classifying objects based on their characteristics. In a hands-on learning activity, young space explorers work together to categorize solar system cards based on their properties. It is up to the young...
Virginia Department of Education
Solar System Model
How many planets can you name? Did you get all 13 in our solar system, including the dwarf planets, or were you surprised when you read there are 13 planets? The lesson helps scholars understand the scale of the universe including the...
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 prepare a...
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 a...
Curated OER
Babylonian Number System
In this Babylonian number system worksheet, students read an explanation of the number symbols used by Babylonians and respond to 3 questions regarding the information presented.
CK-12 Foundation
Systems of Linear Equations in Three Variables: Intersecting Planes - No Solution
How many different ways can three planes intersect? The interactive provides three movable planes. Pupils manipulate the planes to determine the number of solutions possible based upon their intersections.
Curated OER
Planetary Place Value
Third graders explore place value to the ten thousands place. This incredibly thorough, 24-page lesson plan has learners construct, order, and compare numbers to 9,999. This three-day lesson plan includes reteaching and extension...