Curated OER
Adding and Subtracting Decimals
Students practice adding and subtracting numbers with decimals. In this decimals lesson plan, students use grid paper and money to learn how to add and subtract decimals.
Curated OER
Ten Little Black Dots
Second graders use black and red construction paper to symbolize different one digit numbers that add up to 10. In this sums to 10 lesson plan, 2nd graders discover different combinations and patterns that can lead them to the number 10.
Curated OER
Fractions and Fact Families: Jump Kangaroo Jump!
Second graders practice with fractions and fact families. In this fractions and fact families activity, 2nd graders participate in a series of activities to assist them with understanding fractions.  Activities include graphing,...
Curated OER
Light Beam
Students measure and convert between units. In this geometry lesson, students investigate through measurements of distances. They relate the properties of circle to solving problems with radius, diameter and area.
Curated OER
Working Watermelon
You're going to wish you had a watermelon for this lesson! Class members read about watermelons and make a salad in class to sample. They also perform estimates, measurements and calculations on a watermelon. They predict what percentage...
Curated OER
Clock Arithmetic and Cryptography
Students explore the concept of modular arithmetic and cryptography. In this modular arithmetic and cryptography lesson, students use applets to explore modular arithmetic using a clock and Caesar Ciphers. Students exchange their ciphers...
Curated OER
Miles Mania- Rounding to the Nearest Hundred Worksheet
In this mileage and rounding learning exercise, 3rd graders read distances between cities as shown on a map at the top of the page. They fill in a table using the names of the cities as determined by the rounded mileage between them....
Curated OER
Subtracting Greater Numbers
In this subtraction instructional activity, 4th graders subtract 13 math problems involving 4 and 5-digit numbers. Students solve 1 word problem with a chart.
Curated OER
Roll `Em!
First graders engage in using base ten blocks and dice for a fun engaging math lesson. They use a worksheet imbedded in this lesson as the game board to help them play this math game.
Curated OER
50 State Quarter Game
Students, using their knowledge of place value and number sense, play this counting game in small groups, or as a whole class, to see who be the first person to reach 50 cents.
Curated OER
Pardon Me. Do You Have Change For a Dollar?
Upper elementary and middle school learners explore currencies from a variety of countries. They use the Internet, video, and engage in hands-on activities. They practice converting U.S. currency to foreign currency and vice versa. This...
Curated OER
Making Rectangles
Students study rectangles. In this math lesson, students use numbers, measurements and geometry to draw rectangles of varying sizes.
Pennsylvania Department of Education
Some Special Sums
Students study addition. In this math lesson plan, students solve doubles and doubles plus one addition facts. Students roll dice and use the numbers to create addition problems.
National Security Agency
Borrowing from Our Neighbors
Young mathematicians explore two-digit subtraction. They will investigate multiple ways to subtract numbers involving regrouping. Resources are provided.
Curated OER
Roman Numerals
Students explore the concept of Roman numerals. They investigate the seven basic numerals and the symbols that are used in the Roman numeral system and their values. Students practice converting Roman numerals.
Curated OER
Rolling For Money
Second graders examine several coins to determine their values. Pennies, nickels, dimes, and quarters are counted. Music is added to the lesson to enhance the experience.
Virginia Department of Education 
Give or Take a Few
Young mathematicians extend their knowledge of rational numbers on a number line to graph inequalities by first using number cards to compare rational numbers. They finish by using similar reasoning to graph inequalities on a number line.
Curated OER
Marshmallow Moosy
Students stack several different colored marshmallows-one on top of the other-in the tall cylindrical container. They ct a cardboard disk to fit snugly inside of the container on top of the marshmallow stack using a compass if necessary....
Curated OER
Money Booklet
Students practice handling money by examining different world currency.  In this economics instructional activity, students utilize a coin booklet to trace individual coins and draw bills, later coloring them in their traditional...
Curated OER
To Infinity: A Numbers Game
Students explore number values by participating in a class game. In this number sense lesson, students utilize dice, cards, and chess pieces to move their piece closer to the end of a number line, the point of infinity. Students answer...
EngageNY
Distance on the Coordinate Plane
Apply the Pythagorean Theorem to coordinate geometry. Learners find the distance between two points on a coordinate plane by using the Pythagorean Theorem. The vertical and horizontal change creates a right triangle, which allows...
Curated OER
Fractions, Decimals, and Percents
Sixth graders engage in a lesson that explores the conversion process of fractions, decimals, and percents in relationship to their values to each other. Students demonstrate how to convert numbers interchangeably between fractions,...
Curated OER
Comparing and Ordering Fractions
Students compare and organize different fractions.  In this fraction lesson, students use wax paper divided into squares to represent fractions.  Students put them in different orders based on their value to complete their mathematics...
Curated OER
How Do I Measure Up? (Intermediate)
Fifth graders compare the relationship between meter in music and measurement in math. They practice sightreading music by determining the number of beats per measure, clapping and counting the rhythm.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
