Interactive
CK-12 Foundation

Expression Evaluation with Different Denominators: Adding Mixed Fractions of Water

For Students 6th - 8th Standards
An interactive challenges mathematicians to add mixed fractions with unlike denominators. Five questions—fill-in-the-blank and multiple-choice—build from one to the next leading the way to an open discussion about denominators and...
Interactive
CK-12 Foundation

Equivalent Fractions: Number Line

For Students 3rd Standards
Arrange improper fractions on a number line to determine the equivalency to whole numbers. The number line starts at -4 and ends at 4, while users must turn the improper fraction into a proper fraction in order to place it on the number...
Interactive
CK-12 Foundation

Percents as Fractions: A Fraction of a Percent

For Students 6th - 8th Standards
Five questions make up an interactive all about percents and fractions. Mathematicians answer multiple-choice and fill in the blank problems with help from a tool that converts percents to fractions using a sliding bar. An open...
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...
Interactive
CK-12 Foundation

Fractions as Percents: Baking Cookies

For Students 6th - 8th Standards
A five-question interactive challenges mathematicians to solve word problems involving fractions as percents. Baking two different types of cookies and needing the exact amount requires scholars to make fractions, turn them into...
Interactive
CK-12 Foundation

Comparison of Fractions, Decimals, and Percents: Filling in the Squares

For Students 6th - 8th Standards
An interactive equipped with five questions challenges mathematicians to convert between fractions, decimals, and percents. A diagram changes its size to visually depict conversions alongside symbols to compare them. Question types...
Interactive
CK-12 Foundation

Conversion of Decimals, Fractions, and Percents

For Students 6th - 8th Standards
Five questions—true or false and multiple-choice—challenge mathematicians to convert decimals, fractions, and percents. An interactive table displays how to write a portion of shapes in a variety of ways. A discussion question concludes...
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,...
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...
Interactive
CK-12 Foundation

Mixed Numbers as Improper Fractions: Pineapple Slices

For Students 6th Standards
Practice adding and subtracting improper fractions with pineapple slices. Young mathematicians move whole pineapple slices to visualize the addition of the 2/5s that is on Sally's plate. Pupils also use a combination of mixed numbers and...
Interactive
CK-12 Foundation

Fraction and Mixed Number Comparison: Pumpkin Pie

For Students 6th
Compare fraction models to fractions on a number line in an interactive that uses pumpkin pies as the model. Pupils look at pumpkin pie models to determine their improper fraction value. They use their knowledge to answer five questions...
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. 
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...
Interactive
CK-12 Foundation

Improper Fractions as Mixed Numbers: Sharing Scratch-n-Sniff Stickers

For Students 6th Standards
No, you can't actually smell these 13 scratch-n-sniff stickers. But you can group them into equal groups of four, with one sticker remaining. Using that information, learners create a mixed number based on the improper fraction, 13/4.
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...
Interactive
CK-12 Foundation

Fraction Rounding to the Nearest Half: Beaker Math

For Students 6th Standards
Rounding fractions is the focus of a six-question interactive designed to boost concept proficiency. A measured beaker's water level increases and decreases as mathematicians move the tool to represent specific fractions. Questions...
Interactive
CK-12 Foundation

Mixed Numbers in Applications: Sharing a Chocolate Bar

For Students 5th - 7th Standards
The advantage of a virtual chocolate bar: it never melts. Learners use an interactive to share a chocolate bar among friends. Some challenge questions assess understanding of fractions in relation to this context.
Interactive
CK-12 Foundation

Fraction Ordering with Lowest Common Denominators: Test Your Strength

For Students 6th Standards
Young mathematicians use a bell and hammer to see how high or low the puck goes. Then, they order the fractional values to demonstrate the greatest to lowest hit. Students then respond to several questions that require them to use...
Interactive
CK-12 Foundation

Rational Numbers in Applications: Pizza with Friends

For Students 6th - 7th Standards
Explore the application of fractions in a real-life situation. Learners manipulate an interactive simulation to model a given scenario. They find fractions of fractions and explain the importance of the part-to-whole comparison.
Interactive
CK-12 Foundation

Addition and Subtraction of Rational Expressions: Strawberry Sherbet Punch

For Students 9th - 12th Standards
Explore the connection between fractions and rational expressions. Young scholars manipulate fractions with unlike denominators to find a total. Challenge questions allow them to check their work to ensure they are correct.
Interactive
CK-12 Foundation

Greatest Common Factor Using Lists

For Students 6th Standards
By creating a list of factors for two numbers, it is easier to see the greatest common factor. Each question in an interactive resource asks pupils to identify the greatest common factor for the numbers 24 and 36 in several...
Interactive
CK-12 Foundation

Midpoint and Segment Bisectors: Midpoint Map

For Students 9th - 12th Standards
Discover how to find a midpoint with a conceptual exploration. Scholars manipulate a point to determine the location of a midpoint on a straight line distance between two locations. Later questions extend to determine the...
Interactive
CK-12 Foundation

Rational Numbers in Applications: Batch of Brownies as Rational Numbers

For Students 6th - 8th Standards
Sharing is caring—especially with brownies! Young mathematicians use an interactive to split a batch of brownies between several friends given constraints. They answer some challenge questions to check that each friend has the correct...
Interactive
CK-12 Foundation

Multiplication of Rational Expressions

For Students 9th - 11th Standards
There's nothing irrational about this lesson. Explore the process of multiplying rational expressions through discovery. A well-designed lesson has learners factor and multiply rational expressions by dragging factors to the correct...

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