Students observe how certain geometric shapes can be used to make some structures rigid and others flexible. The activity involves construction of a 30-60 right triangle, folding while following directions, and identifying polygons.
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New Review How Many Licks Does It Take to Get to the Center?
Get a better answer than Mr. Owl. The class tackles the age-old question by collecting data to find out how many licks it takes to get to the center of three different types of suckers. Individuals make predictions and analyze three...
9th - 12th Math CCSS: Designed
Linear Combinations, Span, and Basis Vectors | Essence of Linear Algebra, Chapter 2
What does it mean for two vectors to be linearly independent? The resource presents the basics of basis vectors and linear combinations. The third video in the 15-part series provides a definition of linear independence in terms of the...
10 mins 11th - Higher Ed Math CCSS: Adaptable
The Order of Operations is Wrong
PEMDAS is not all that it is cracked up to be. The short video provides an argument that the order of operations may not be instructionally sound. The presentation shows that understanding the concepts and properties of mathematics...
4 mins 7th - 12th Math CCSS: Adaptable
How Many Ways Are There to Prove the Pythagorean Theorem?
There is more than one way to prove the Pythagorean Theorem. Euclid and Einstein found the same way to prove the Pythagorean Theorem. The video introduces several other ways to prove the theorem along with the history of its use.
5 mins 8th - 12th Math CCSS: Adaptable
Adding Integers with Opposite Signs Using an Algorithm
Ask learners to look for a pattern when adding integers with opposite signs. The video reviews absolute value and adding integers with the same sign. It also reviews adding opposite numbers on the number line. However, the object of this...
4 mins 6th - 8th Math CCSS: Designed