First Grade
Websites
Elapsed Time Matching Customary Measurement Games
Match the Triangles Matho Lines, Angles and Shapes
Shape Explorer Probability Game
Measure It! Solid Figures
Metric Millionaire Vocabulary Review from How Likely Is It?
Animal Weigh-In  
Video Streaming
Discovering Math: Measurement
Tools to Measure Length
Volume and Capacity
Tools to Measure Angles

Discovering Math: Geometry
Translations or Slides - Dinosaur Walking
Quadrilaterals
Reflections/Flips-Dinosaur & Dragon Parts
Defining Properties of Triangles
Measurement: Length
Converting Units in the U.S. System
Converting Units in the Metric System 		Math All Around Us: Measurement Mania
Meters & the Metric System
Math All Around Us: Space to Play
Finding the Perimeter of Polygons
The Area of Polygons 		The Lesson Collection: Measuring Area
Strategies: Exploration and Discussion
General Websites

Brainteasers
Connected Math Home Page
Setgame Daily Puzzle
Elementary Brainteaser and Problem of the Week
Sudoku