Activity
National Council of Teachers of Mathematics

The Math Forum: Ask Dr. Math: Age Word Problems

For Students 9th - 10th
Dr. Math walks you through the necessary steps to solve age problems. Additional examples are included.
Website
Maths Challenge

Maths challenge.net: Problem Solving Database

For Teachers 9th - 10th Standards
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...
Website
National Council of Teachers of Mathematics

The Math Forum: Classic Problems From the Dr. Math Archives

For Students 9th - 10th
Several classics in the world of math are demonstrated on this Math Forum site. Clear explanations are given for each problem and links are included for extensions.
Unknown Type
Khan Academy

Khan Academy: Algebra I: Systems of Equations: Age Word Problems

For Students 9th - 10th
Solve age word problems with a system of equations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Lesson Plan
University of Regina (Canada)

University of Regina: Math Central: Middle Ages Mathematics Project

For Teachers 9th - 10th
The "Middle Ages" is the theme of this mathematics project. Students use problem solving skills to solve real-life situations. Some of the project activities are the game of chess and an experiment catapulting marshmallows. Five...
Unknown Type
Khan Academy

Khan Academy: Age Word Problems

For Students 6th - 8th
In this exercise, students practice age word problems. Students receive immediate feedback and have the opportunity to get hints and try questions repeatedly.
Activity
University of Cambridge

University of Cambridge: Maths and Sports: The Olympic Flame: Are You in the 95%?

For Students 9th - 10th
The organisers of the Olympic Torch Relay hope that the planned route means that the Torch will come within 10 miles of 95% of the population of Britain. Has this worked? This activity can be approached at different levels by a wide...
Activity
Other

At Home With Math: Activities for Parents and Kids

For Students Pre-K - 1st
These ten math activities encourage parents and their children ages 5-11 to work with math in the context of everyday activities like taking turns, saving money, or getting somewhere on time.
Interactive
ABCya

Ab Cya: Math Man Jr.

For Students K - 1st Standards
Math Man Jr. is an elementary activity to practice addition and subtraction math facts. Solve math problems and avoid the ghosts! Fun for children of all ages!
Interactive
ABCya

Ab Cya: Math Man + X /

For Students 4th - 6th Standards
Math Man is an elementary activity to practice addition, subtraction, multiplication and division math facts. Solve math problems and avoid the ghosts! Fun for children of all ages!
Lesson Plan
Better Lesson

Better Lesson: Multiply and Divide by 10

For Teachers 3rd Standards
Counting by 10's is easy for students of this age. Knowing that base 10 can be used to help multiply and divide in the higher numbers by decomposing is critical. This lesson sets the base for future work.
Activity
University of Cambridge

University of Cambridge: Nrich: Brothers and Sisters

For Students 3rd - 8th Standards
Figure out the ages of the children in this family using the clues and your sound algebraic thinking. Check the solution after you complete the problem.
Activity
Ministry of Education and Employment of Spain

Red Escolar: El Crucigrama De Hipatia

For Students 6th - 8th
In Spanish. Hypatia of Alejandria was a great mathematician that from an early age taught and investigated almost all branches of mathematics. To remember her solve the crossword puzzle involving problems of arithmetic, geometry and...