public marks

PUBLIC MARKS from knann with tags gr4 & "problem solving"

December 2005

The Broken Calculator

Use the broken calculator to solve your math problems in a creative way. Can you add 2+2 if the addition key is broken? Sure about (3*2)-2 . The answer is the same! Create some challenges for you, your friends, and teachers!

Scholastic's Global Classport

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With Scholastic's Global Classport, you can communicate with classrooms in 182 countries, and collaborate with teachers around the world. Note: Remember that your username must include "_scholastic" . Use to connect with other classrooms to solve Math Maven's Mysteries

Math Maven's Mysteries

This content resource is an index of links to interactive sites, challenging students to solve mysteries using a variety of math principles. Students read the stories, solve the problems, and answer the questions, using clues embedded in the stories to discover the solution. Included are links to a variety of teacher resources.

November 2005

Money and More

Read the word problem and choose the best strategy for solving the problem.

October 2005

Cyberchase . Games Central | PBS Kids

Variety of math and problem solving puzzles. Reading required for instructions. Some games appropriate for grade 3 with instruction

Disguise Combos

How many disguises can you make for each character. Do you notice a pattern?

Behind the Blob game

Great number sequence game for whole class instruction. Allows for a variety of patterns that are teacher selected.

The Frustrated Farmer

Help the farmer get the chicken, the fox, and the corn across the river without anything being eaten!

Logic: Cannibals and Missionaries

Try this...not as easy as it looks! What's your strategy??

Weekly Brain Teasers

Sharpen your thinking skills for grades 3-4, 5-6, and 7-8.

Bright Sparks

Try these problem solving interactive investigations. You will need to use your logic and reasoning skills to complete the activities. Teacher introduction may be needed. Some actvities may be appropriate for gr4.

July 2005

Atlantic Challenge

Sir Richard Harmoat-Wilde plans to be the first to cross the Atlantic in a hot air balloon. Half way across disaster strikes - the balloon punctures and begins to lose height. Pupils working together have to find out what the airship is carrying and jettison equipment in order to make it across.


A thinking for learning activity to encourage group discussion and justification of decision making. 6 people are left on a liferaft, for the raft to stay afloat 2 people must be thrown off.Who will it be? Why? Is it fair? Who should go first? Are some lives less valuable than others?