Curated OER
Rainbow Jelly
Pupils work with teaspoons, tablespoons and fractions of a cup to make their own rainbow jelly, converting between units of volume as required. They recognize the need for a standard unit of volume and measure volume using teaspoons and...
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The Number Partner
First graders study number pairs and identify number pairs that sum to numbers from 10 to 30. They use number pairs to solve addition and subtraction problems. They make sensible estimates and check the reasonableness of answers.
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4th Grade Math Worksheet
In this 4th grade math review worksheet, students respond to 60 multiple choice questions that review of fractions, decimals, geometry, number sense, and computation.
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Ratio Relationships
Students solve for the different ratio and proportion of a problem. For this geometry lesson, students show their knowledge of how to solve proportional relationships. They convert between percent, decimals and fractions.
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Models and Algorithms to Solve Multiplication Problems
Students choose the correct strategy to solve multiplication and division. In this algorithm lesson, students use at least two strategies that use properties of operations and estimation. Students also recognize the relationship between...
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Estimating Percents
In this math instructional activity, students complete 25 problems where they estimate the percentage of shaded figures, fractions of a whole, and by solving word problems which use percents.
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Multiplying Decimals and Mixed Numbers
Learners multiply decimals and/or mixed numbers. They explore the effects of multiplying decimals and mixed numbers. They practice estimating answers when a number is multiplied by a decimal or mixed number.
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Level 2 Fraction Sets
In this mathematics worksheet, students solve various word problems by selecting the correct fraction for each response. There are eight problems to solve on the sheet.
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Decimals: Collaborative Lesson
Students explore mathematics by participating in a group activity. In this number value lesson plan, students identify the uses for decimals and how to best estimate whole numbers based on decimals and fractions. Students collaborate...
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Weights
Students find an object that they estimate weighs 20g and check estimates on the balance scales. They read the problem and work in pairs focusing their understanding on the size of grams.
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The Basketball Tournament
Young scholars estimate how many games are played if six teams play each other once. They investigate their own way and discuss possible strategies they might use. They then share their findings with the class.
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"How Big is a Foot?" by Rolf Myller
Students use estimation and fractions and standard units of measure to measure foot strips.
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Marshmallows
Third graders estimate the volume and mass of one marshmallow using appropriate standard units. They design and carry out an investigation to find the average of volume/mass of one marshmallow.
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Buying My First Car
Students pretend they are about to buy their first new car. They must do all the calculations necessary to estimate the cost of purchasing the car. They see that the math they learn in school really does have real-life applications.
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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.
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Time Problems
Students make sensible estimates and check for reasonable results. They also solve problems with positive and negative integers using practical activities or models as needed.
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The Take-Awar Bar 1
Students use an Internet tool, "The Take-Away Bar" to solve subtraction problems by breaking them into parts. They write and solve comparison problems. Students make sensible estimates and check the reasonableness of answers. They use...
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Can You Guess
Students develop useful strategies for mental calculation when estimating possible addition solutions. They mentally perform calculations involving addition and subtraction. Students state the estimated sum or difference between numbers.
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Venn Diagrams & Word Problems
Students explore the concept of Venn Diagrams through word problems. In this Venn Diagram lesson, students solve word problems about groups of people using Venn Diagrams. Students use survey results about MySpace and Facebook in a Venn...
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How Long Does It Take?
Students investigate the lengths of time various activities take and calculate how long is spent on these activities in a week. They complete a worksheet for each activity that is timed, and calculate lengths of time for simulated...
National Security Agency
Go One-on-One with Decimals
Shoot and score with three basketball-themed lessons about decimals. Young mathematicians compare game statistics, make trash can hoops, and play a data spinner game to practice identifying digits and values within decimal numbers.
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Place Value of Decimals to Hundredths: Diving for Decimals
Constructing decimals correctly is a crucial concept for elementary students to grasp. Here, have the young mathematicians in your class explore standard and expanded form while comparing decimal values. This unit is taught while...
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Math in the Wetlands Field Trip
Get your class out in the environment for hands on math activities. In this wetlands lesson, learners transplant native plants, calculate how much soil is needed, and perform math activities based on this experience. They then make...
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Understanding Symmetry Through Visual Art
Have your class explore symmetry, radial balance and fractional parts in natural and man-made objects in their environment. Learners list examples and identify symmetrical and asymmetrical designs. Pupils are given a box of crayons and...
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