Unit Plan
Khan Academy

Khan Academy: Dividing Fractions Word Problems

For Students 5th - 7th Standards
Practice solving word problems by dividing fractions by fractions. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unknown Type
Khan Academy

Khan Academy: General Triangle Word Problems

For Students 9th - 10th Standards
Solve word problems that involve general triangles using trigonometry. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
Khan Academy

Khan Academy: Multi Step Word Problems With Whole Numbers

For Students 3rd - 5th Standards
Solve multi-step word problems, including estimation. Select the equation that can be used to solve a word problem. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Activity
Analyze Math

Analyze Math: Parallelogram Problems

For Students 9th - 10th
Learners explore the geometry topic of parallelograms. The word problems include detailed solutions.
Lesson Plan
PBS

Pbs Kids Afterschool Adventure!: Operation: Rainbow Math Activity Plan

For Teachers Pre-K - K
Red apples, orange candles, yellow stars, green frogs, and blue, indigo, and violet flowers-they all add up to Rainbow Math fun! During this adventure children learn the colors of the rainbow as they practice counting, adding and...
Handout
Science Struck

Science Struck: The Hardest Math Problem in the World

For Students 9th - 10th
Discusses the two math problems that baffled mathematicians for ages, Fermat's Last Theorem and Riemann's Hypothesis. The latter is still unsolved.
Unknown Type
Khan Academy

Khan Academy: Dividing Fractions

For Students 6th - 8th Standards
In this exercise, students practice dividing fractions in word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Unknown Type
NASA

Ltp: 9th Grade Math Practice Questions

For Students 9th - 10th
This site offers 38 practice math problems based on the Ohio 9th Grade Math Proficiency Test. Questions are multiple choice and answer pages include discussion.
Website
Rice University

Rice University: Cynthia Lanius: Fun Mathematics Lessons

For Students 3rd - 8th
This resource has mathematics lessons for different levels, from counting to slope. In English and Spanish.
Unit Plan
PBS

Pbs: Modeling Fraction Division, Equal Groups, Group Size Unknown

For Students 6th - 8th
This animated video illustrates a word problem that requires dividing two fractions with equal groups, group size unknown. Students are presented with a problem that asks how long it takes a sloth to climb down a tree trunk at an even...
Unit Plan
PBS

Pbs: Kid Vid: Dividing Mixed Numbers and Fractions

For Students 6th - 8th
Critique a peer's thinking about two division word problems, one with whole and mixed numbers and one with two fractions, in this interactive from KET. Students watch a video of a student thinking through two word problems that involve...
Unit Plan
PBS

Pbs: Modeling Fraction Multiplication Using Arrays

For Students 3rd - 5th Standards
This video illustrates a word problem involving the multiplication of fractions using an array to model the solution visually. The problem involves puffins, arctic birds that live in colonies and fish to feed their young.
Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: A Apr Zeroes and Factorization of Quadratic Polynomial

For Teachers 9th - 10th Standards
This is the first of a series of problems building to an understanding of an important property of polynomial functions, that a polynomial of degree d can have at most d roots. Aligns with A-APR.B.2.

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