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Interactive
CK-12 Foundation

Sums of Fractions with Like Denominators: Cheesy Bread

For Students 6th - 8th Standards
Five questions make up an interactive all about adding fractions with like denominators. Mathematicians answer multiple-choice problems and an open-ended question using a fraction model that resembles sliced bread. The practice ends with...
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Interactive
CK-12 Foundation

Subtraction of Fractions: Fragmented Fractions

For Students 5th - 8th Standards
An interactive challenges scholars to subtract mixed numbers. Pupils answer questions—multiple-choice, fill in the blank, and true or false—with help from virtual fraction strips. The practice closes with a discussion. 
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Interactive
CK-12 Foundation

Multiplication of Whole Numbers by Fractions: Multiplication of Fractions by Whole Numbers

For Students 6th - 8th Standards
An interactive challenges mathematicians to multiply fractions by whole numbers. A model provides a clear visual aid in preparing whole numbers to be multiplied. Six questions include multiple-choice, fill in the blank, short answer, and...
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Interactive
CK-12 Foundation

Differences of Fractions with Different Denominators

For Students 6th - 8th Standards
Subtracting fractions with unlike denominators is the focus of an interactive designed to boost mathematicians' problem-solving skills. Five questions challenge participants to answer multiple-choice and true or false questions with help...
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Interactive
CK-12 Foundation

Products of Two Fractions: Blocks

For Students 6th - 8th Standards
Five questions make up an interactive designed to boost the multiplication of fraction skills. An assortment of color-coded fraction blocks assists participants to find the right answer. Question types include multiple-choice and fill in...
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Interactive
CK-12 Foundation

Division of Fractions: Stacking Berets

For Students 6th - 8th Standards
Seven questions make up an interactive designed to boost mathematician's skills in dividing whole numbers by mixed fractions. Practice comes with a visual aid with movable parts. Questions types include fill in the blank,...
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Interactive
CK-12 Foundation

Quotients of Fractions: Flipping the Fractions!

For Students 6th - 8th Standards
Five questions make up an interactive designed to promote math skills involving the division of fractions. To assist in the process, a tool with moveable parts showcases how fractions are flipped. Question types include multiple-choice,...
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Activity
Exploratorium

Traveling Networks

For Teachers 4th - 8th
Show your class the path to understanding graph theory. Scholars learn about basic graph theory using an activity based on the Bridges of Konigberg problem. They draw networks on the playground and decide whether it is possible to travel...
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Activity
Exploratorium

Handy Measuring Ratio

For Teachers 4th - 8th Standards
Your hand can be a handy tool for measurement. Young mathematicians learn how to estimate the height of objects by applying similarity. They find the horizontal distance from the object where spreading their outstretched fingers results...
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Performance
Achieve

Medication Dosage

For Students 9th - 12th Standards
Here's the cure to boredom. Given a patient file, including medication dosage information, scholars determine the amount of medication left in the patient's bloodstream over time. They analyze the sequence of numbers and determine a...
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Lesson Plan
Mathematics Assessment Project

Generating Polynomials from Patterns

For Teachers 9th - 12th Standards
Patterns and polynomials go hand in hand. Budding mathematicians analyze sequences of dot diagrams to discover the patterns in the number of white dots and black dots. They use the identified patterns to write and simplify a polynomial...
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Unit Plan
New York City Department of Education

Designing Euclid’s Playground

For Teachers 10th Standards
Create a geometric playground. Pupils work through a performance task to demonstrate their ability to use geometric concepts to solve everyday problems. The accompanying engineering design lessons show teachers how the assessment works...
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Lesson Plan
McGraw Hill

Lesson 12: Absolute Mean Deviation

For Teachers 6th - 8th Standards
Learn a different way to determine variability. An informative lesson provides directions on how to calculate the mean absolute deviation of a data set. Pupils use examples to learn the process and then practice finding the mean absolute...
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Interactive
CK-12 Foundation

Repeating Decimals: Does 1 equal 0.999... ?

For Students 6th - 8th Standards
Six questions make up a challenging interactive that tests scholars' knowledge of repeating decimals. Mathematicians answer true or false and multiple-choice questions with help from a tool that highlights decimal movement in an...
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Interactive
CK-12 Foundation

Whole Number Exponents: Building Blocks

For Students 6th - 8th Standards
Five questions make up an interactive all about whole-number exponents. Movable building blocks create a visual tool to aide mathematicians in answering multiple-choice and true or false problems. The interactive ends with a discussion...
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Interactive
CK-12 Foundation

Scientific Notation Values

For Students 6th - 8th Standards
Scientific notation is the focus of a five-question interactive. A model with movable points offers a visual reference to help solve true or false, multiple-choice, and fill in the blank questions. A discussion question challenges...
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Interactive
CK-12 Foundation

Numbers with Decimal Place Value: Battleship Decimals

For Students 6th - 8th Standards
Decimal place value is the topic of a Battleship themed-interactive. Scholars answer five questions—multiple-choice and true or false—while referencing a grid that acts as the board game. The practice concludes with a discussion question. 
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Interactive
CK-12 Foundation

Decimals as Mixed Numbers

For Students 6th - 8th Standards
A five-question interactive boosts scholars' knowledge of decimals and mixed numbers. Moveable base 10 blocks assist mathematicians in answering a series of multiple-choice and true or false questions. A discussion concludes the practice. 
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Interactive
PHET

Equality Explorer: Two Variables

For Students 6th - 12th Standards
Solving equations in two variables can't be that much harder than solving equations in one variable. Using a balance interactive, scholars solve equations in two variables. They apply inverse operations by adding -x, -y, or -1 as...
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Interactive
PHET

Equality Explorer

For Students 6th - 12th Standards
Find the right balance between concrete and abstract thinking. After using interactive balances to explore inverse operations, learners solve multi-step equations with variables on both sides. Of course, they can still use the...
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Interactive
PHET

Equality Explorer: Basics

For Students 6th - 12th Standards
Not all interactives are made equal. Scholars use an interactive balance to explore the concept of equality. They place different objects on balances to determine the number of each object needed to balance the scale.
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Interactive
PHET

Area Model Algebra

For Students 3rd - 8th Standards
Expand the pupils knowledge of using area models to algebra. The interactive allows learners to use the same procedure of getting partial products when multiplying multi-digit numbers to multiplying polynomials. Scholars see how the...
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AP Test Prep
College Board

2011 AP® Calculus BC Free-Response Questions Form B

For Students 10th - 12th
Take a second look. Form B of the AP® Calculus BC free-response questions allow pupils and teachers to see another set of items. The six questions expand the set of items from the 2011 free-response questions. Form B items include a...
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AP Test Prep
College Board

2010 AP® Calculus BC Free-Response Questions Form B

For Students 10th - 12th
Keep moving along a curve. Two items in the set of released free-response questions from the 2010 AP® Calculus BC exam involve movement along a graph. One involves particle motion along a polar curve while the other uses a squirrel...