Dr. Frank's Math Minute
Wang Education is pleased to introduce Dr. Frank's Math Minute. Dr. Frank's Math Minutes are short and fun video clips that show the power and applicability of mathematics. They are accompanied by free worksheets designed for students with varying levels of mathematics knowledge.
Fraction Pizzeria
Someone has added a whole pizza to Dr. Frank's table! It shouldn't be any problem for him to subtract it a fraction at a time. But what about multiplying and dividing? Watch as Dr. Frank demonstrates all four fraction operations!
Similar Triangles and the St. Louis Arch
2500 years ago, Thales used Geometry to find the height of the Egyptian Pyramids. Today, Dr. Frank uses Similar methods to find height of the St. Louis Arch!
It is believed that Thales of Miletus (624 to 547 BC) was the first person to use similar triangles to find the height of a very tall object. Thales noted that at a particular time of day, the height of an object and the length of its shadow were the same. He then used this observation to calculate the height of the Egyptian pyramids. Later, he brought this knowledge back to Greece and his observations are considered to be a forerunner of the technique of using similar triangles to solve such problems.
Similar Triangles and the St. Louis Arch
Hamburger Mathematics
Dr. Frank's Math Minute gets sidetracked by Dr. Frank's lunch hour. Fortunately, even the hamburger joint next door is a math-friendly place. Join Dr. Frank for a burger and an explanation of Newton's Law of Cooling.