Khan Academy
Khan Academy: Dividing Fractions Word Problems
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.
Khan Academy
Khan Academy: General Triangle Word Problems
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.
Analyze Math
Analyze Math: Parallelogram Problems
Learners explore the geometry topic of parallelograms. The word problems include detailed solutions.
Khan Academy
Khan Academy: Evaluating Expressions With Variables Word Problems
Practice plugging in values to evaluate real-world algebraic expressions. These are introductory problems, so the expressions aren't too complicated. Students receive immediate feedback and have the opportunity to try questions...
Khan Academy
Khan Academy: Equations & Inequalities Word Problems
HSA-CED.A.1: Interactive resource which create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions....
![K 5 Math Teaching Resources: Mult. Equations and Comparison Statements [Pdf] Activity](https://d15y2dacu3jp90.cloudfront.net/images/attachment_defaults/resource/large/FPO-knovation.png "K 5 Math Teaching Resources: Mult. Equations and Comparison Statements [Pdf] Activity")
K-5 Math Teaching Resources
K 5 Math Teaching Resources: Mult. Equations and Comparison Statements [Pdf]
Students will solve these word problems using knowledge of comparing equations. CCSS.Math.Content.4.OA.A.1 Interpret a multiplication equation as a comparison
Science Struck
Science Struck: The Hardest Math Problem in the World
Discusses the two math problems that baffled mathematicians for ages, Fermat's Last Theorem and Riemann's Hypothesis. The latter is still unsolved.
Khan Academy
Khan Academy: Dividing Fractions
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.
NASA
Ltp: 9th Grade Math Practice Questions
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.
National Council of Teachers of Mathematics
The Math Forum: Similarity and Congruence
This site from Dr. Math at the Math Forum provides a collection of problems and exercises that require knowledge of the relations between similar or congruent shapes. Solutions are provided.
PBS
Pbs Kids Afterschool Adventure!: Operation: Pirate Picnic Activity Plan
Ahoy Matey! Join PBS Kids characters Peg + Cat to explore fair sharing and solve math problems to help a group of cranky pirates divide things fairly. Children will separate sets of objects into equal groups and divide single objects...
Other
Algebra Lab: Word Lesson: Vectors Right Triangles Components and Resultants
Solve problems using vectors that involve velocity, speed, direction, and magnitude. Includes examples and practice problems. Click on the buttons under the practice questions to see the solutions.
Rice University
Rice University: Cynthia Lanius: Fun Mathematics Lessons
This resource has mathematics lessons for different levels, from counting to slope. In English and Spanish.
AAA Math
Aaa Math: Adding Three Digit Numbers
Read through this explanation of how to add three digit numbers. Use the online game to practice this skill. The game will keep running totals of your correct and incorrect answers. It will also show you a percent score of the correct...
PBS
Pbs: Modeling Fraction Division, Equal Groups, Group Size Unknown
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...
PBS
Pbs: Modeling Fraction Division Using Comparison, Group Number Unknown
This animated video illustrates a visual model for solving a word problem involving the division of fractions. The problem asks students to use fractions to compare the spring weight of a hedgehog with its weight just before hibernation....
PBS
Pbs: Kid Vid: Dividing Mixed Numbers and Fractions
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...
PBS
Pbs: Modeling Fraction Multiplication Using Arrays
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.
Illustrative Mathematics
Illustrative Mathematics: A Apr Zeroes and Factorization of Quadratic Polynomial
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.