Clips

Summer 2015

• 9 minutes
• 319 views

Dr. Lee Stiff Defends 1989 & 2000 NCTM Principles of Mathematics Standards

• 3 minutes
• 130 views

Every Child

• 27 seconds
• 24 views

lee stiff

• 1 minute
• 24 views

Weighing a pig

• 26 seconds
• 16 views

Traditional math doesn't lead to understanding

• 20 seconds
• 2 views

Gail Burrill

• 11 minutes
• 1 view