University of Cambridge
University of Cambridge: Nrich: The Lily Pond
Using your problem solving skills find the best way for Freddie to visit Sammy. On this one page website the solution is right there for you when you have found a solution.
University of Cambridge
University of Cambridge: Nrich: Cross Country Race
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Ten Green Bottles
Sharpen your problem solving skills and find the solution to the challenge on this one page website. You might want to make a list. Once you have your solution you can check the website and see if it agrees with their solution.
University of Cambridge
University of Cambridge: Nrich: Shutting Puzzle
Sharpen your problem solving skills and figure out a solution for this interesting problem. The solution is on this one page website so that you can check your answer.
University of Cambridge
University of Cambridge: Nrich: Page Numbers
Exactly 195 digits have been used to number the pages in a book. How many pages does the book have? Sounds simple enough--if you have the right problem-solving skills. Solution provided.
Scholastic
Scholastic: Math Maven's Mysteries: The Case of the Dastardly Disguiser
Famous jewels have been stolen from the Country Music Hall of Fame! The Dastardly Disguiser is a suspect, but we need to find out just how many disguise combinations he can use.
CK-12 Foundation
Ck 12: Elem Math: Completing a Decimal Place Value Chart to Tenths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are presented with a decimal number with tenths which they must put into a place value chart. Includes video demonstrating how to...
CK-12 Foundation
Ck 12: Elem Math: Completing a Decimal Place Value Chart Up to Hundredths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are presented with a decimal number which they must put into a place value chart that goes to the hundredths place. Includes video...
CK-12 Foundation
Ck 12: Elem Math: Completing a Decimal Place Value Chart to Thousandths
[Free Registration/Login may be required to access all resource tools.] For this learning module, students are presented with a decimal number which they must put into a place value chart that goes to the thousandths place. Includes...
Center for Innovation in Engineering and Science Education, Stevens Institute of Technology
Ciese Collaborative Projects: Down the Drain: How Much Water Do You Use?
How much water do you use everyday? Find out in this engaging investigation, where you compare your water usage with your classmates and other people around the world. An exploration filled with lots of math and science that students are...
University of Cambridge
University of Cambridge: Nrich: Arranging the Tables
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Good Work if You Can Get It
On this one page website sharpen your logic and problem solving skills while working on this challenge. The solution is available to double check your solution.
University of Cambridge
University of Cambridge: Nrich: Two Dice
Use your problem solving skills to work on this problem that has to do with dice. The solution is right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Buckets of Thinking
Trial and error is just one of the problem solving strategies that you could use to solve this bucket problem. After you finish view the solution at this one page website.
University of Cambridge
University of Cambridge: Nrich: Money Bags
Practice your problem solving skills while you help Ram figure out how many pennies to put in each bag. The solution is right on this one page website.
University of Cambridge
University of Cambridge: Nrich: Butterfly Flowers
This one page website offers a challenge that will require you to use your problem solving skills. There are teacher tips and the solution available to help.
University of Cambridge
University of Cambridge: Nrich: What Shape and Color?
Fill in the chart and see which shapes and which colors belong in which rows and columns. The solution is readily available at this one page website.
University of Cambridge
University of Cambridge: Nrich: Back to the Planet of Vuv
You will probably need to make a list to solve the challenge at this one page website.
University of Cambridge
University of Cambridge: Nrich: Plates of Cookies
As you start to work on this problem, keep in mind that in England cookies are called biscuits. Solution provided.
University of Cambridge
University of Cambridge: Nrich: Sissa's Reward
On this one page website use a table to help you solve this problem about the chess board and grains of rice. The solution is available right on the website.
University of Cambridge
University of Cambridge: Nrich: Bunny Hop
You will want to "hop" right on this problem and see if you can find a solution at this one page website. Then you can check it right there.
University of Cambridge
University of Cambridge: Nrich: 5 on the Clock
Use your math skills to solve this problem involving a digital clock face. Solution included.
University of Cambridge
University of Cambridge: Nrich: Six Is the Sum
You will probably want to make a list to figure out the solution to this problem. There are teacher notes and the solution right at this one page website.
Other
Math Stories: Make a Table
At this one page site you can work through step by step a sample problem that illustrates the problem solving strategy for "Make a table." The answer is right there to help you check your thinking.