This is a task from the Illustrative Mathematics website that is one …
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Fact Family work sheets * Blank addition and subtraction frames (2 of each) * Numbers cards in fact-family sets Actions As a whole class, t...
This is a task from the Illustrative Mathematics website that is one …
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Write as many equations for each picture as you can. Use the numbers 4, 1, and 5. Here are some equations for this picture. 4+1=5 \hskip4em 5 = 4+1 5-1...
This is a task from the Illustrative Mathematics website that is one …
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Link-cubes or snap-cubes (2 colors for each student or pair of students) * A die * Paper and pencil Actions 1. Roll the die. 2. Using a sin...
This is a task from the Illustrative Mathematics website that is one …
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials * Unifix cubes * Large blocks in different sizes or varying lengths of sentence strips Note: The large blocks or the cut-up lengths of senten...
This is a task from the Illustrative Mathematics website that is one …
This is a task from the Illustrative Mathematics website that is one part of a complete illustration of the standard to which it is aligned. Each task has at least one solution and some commentary that addresses important asects of the task and its potential use. Here are the first few lines of the commentary for this task: Materials The Very Hungry Caterpillar by Eric Carle The students work individually or in pairs. Each student or pair needs: Three ten-frames for each s...
In this lesson children will be asked to make a graph, then …
In this lesson children will be asked to make a graph, then listen to a story. After the story, they will do a similar graph and then compare the two graphs.
In this lesson each student will create a glyph (symbol or icon) …
In this lesson each student will create a glyph (symbol or icon) which represents them and read the glyphs of others using a legend to understand the data on the glyphs.
Learn how to solve one-step addition and subtraction equations that have fractions …
Learn how to solve one-step addition and subtraction equations that have fractions and decimals in them. [4:32]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
Learn how to solve equations in one step by multiplying or dividing …
Learn how to solve equations in one step by multiplying or dividing a number from both sides. These problems involve decimals and fractions. [7:51]
Khan Academy learning modules include a Community space where users can ask questions and seek help from community members. Educators should consult with their Technology administrators to determine the use of Khan Academy learning modules in their classroom. Please review materials from external sites before sharing with students.
New activities designed specifically for the 2019-2020 school year spotlight the 2020 …
New activities designed specifically for the 2019-2020 school year spotlight the 2020 Census and the importance of making sure everyone is counted, especially children. The decennial count impacts the federal funds that communities receive for special education, classroom technology, teacher training, after-school programs, school lunch assistance, and more. PreK-grade 12.
This section investigates the process for dividing rational expressions that are written …
This section investigates the process for dividing rational expressions that are written as fractions. Additionally, it provides opportunities to explore different processes for simplifying rational expressions written as fractions prior to dividing.
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This section explores the process for adding and subtracting rational expressions. It …
This section explores the process for adding and subtracting rational expressions. It primarily focuses on how to identify and use the Least Common Denominator to combine fractions with rational expressions.
A free CK-12 account is required to view all materials.
This section builds from previous sections on simplifying, multiplying, dividing, adding, and …
This section builds from previous sections on simplifying, multiplying, dividing, adding, and subtracting rational expressions, and it investigates how to apply those skills to solving rational equations. It also covers several approaches to checking the solutions to confirm that they are correct or to determine if any are extraneous solutions.
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This section draws on previous sections that explored how to add, subtract, …
This section draws on previous sections that explored how to add, subtract, multiply, and divide rational numbers in order to solve real-world problems involving rational equations. It explores how to apply these procedures in order to solve equations.
A free CK-12 account is required to view all materials.
This section explores the process for solving radical equations, including those with …
This section explores the process for solving radical equations, including those with square, third, and fourth roots. It also investigates how, when, and why some solutions that appear to be correct are incorrect, and are therefore considered extraneous solutions.
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This section explores both expressions and equations with radical signs that can …
This section explores both expressions and equations with radical signs that can be modeled using real-world situations, and provides opportunities to simplify and/or solve problems that require eliminating radicals.
A free CK-12 account is required to view all materials.
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