University of Colorado
University of Colorado: Ph Et Interactive Simulations: Arithmetic
Remember your multiplication tables? Practice your multiplication, division, and factoring skills with this exciting game. No calculators allowed!
Texas Instruments
Texas Instruments: Numb3 Rs: It All Started With a Pair of Rabbits
Based off of the hit television show NUMB3RS, this lesson introduces students to the set of Fibonacci numbers and shows how this set is present in many aspects of nature. Through the lesson, students explore the first 13 elements in the...
CK-12 Foundation
Ck 12: Elem Math: Adding and Subtracting Lengths in Two Steps
[Free Registration/Login may be required to access all resource tools.] This resource is a video that demonstrates using two different steps with addition or subtraction to solve a word problem. Practice word problems follow using two...
PBS
Pbs Nova: Estimating Up, Up and How Far Away?
Use this cleaver site to estimate how far away a hot air balloon is from you using your thumb and arm length.
Cut the Knot
Cut the Knot: 3 Glasses Puzzle
Challenge students to a well-known riddle involving three different-sized glasses, some water, and a goal of a certain amount to be measured out. At this site, students can actually "pour" the water back and forth to solve the problem.
Microsoft
Microsoft Education Lesson Plan: Making Money From Lemons
Simulation where learners apply mathematics and economics concepts in the lemonade business. Learners set up a virtual lemonade stand and must determine production costs, product variables, and profits. Students record data collected on...
Free Math Help
Free Math Help: Earned Run Average
Use these examples and formula to find the earned run average of your favorite baseball pitcher.
Other
Plus Math Magazine Various Articles
Math articles that have questions embedded in the articles. Also includes puzzles, podcasts, and videos.
Starfall
Starfall: Base Ten Practice: Math Journey: Valentine's Day
This learning game focuses on base ten addition and <,>, and equals.
Shodor Education Foundation
Shodor Interactivate: Arithmetic Quiz
This activity gives the user randomized questions to answer on arithmetic with whole numbers and integers.
Better Lesson
Better Lesson: Domino Addition: Understanding the Part/part/whole Relationship
The big idea of this instructional activity is the understanding that addition can be represented as parts of a whole and that we can use addition sentences to represent those parts.
Better Lesson
Better Lesson: Skiing or Boarding?
Next week marks the start of our Skiing and Snowboarding program at the Waitsfield School. Today the students will find out what each classmate would prefer to do.
Doina Popovici
Math Play: 4th Grade Vocabulary Game
Review important math words like composite, evaluate, degree, expression, improper, and intersecting with this review game.
Annenberg Foundation
Annenberg Learner: Math in Daily Life: Cooking by Numbers
What's the relationship between ratios and cooking? Find out by reading this brief article, which shows you how to use math in order to increase or decrease a recipes output.