What is Radon?
Middle schoolers read an article about radon and its properties. They examine a periodic table and identify the numbers surrounding an element. They discuss the harmful and helpful effects of radiation.
6th - 8th Math 3 Views 2 Downloads
Mayan Mathematics and Architecture
Take young scholars on a trip through history with this unit on the mathematics and architecture of the Mayan civilization. Starting with a introduction to their base twenty number system and the symbols they used, this eight-lesson unit...
4th - 8th Math CCSS: Adaptable
New Review Earthquake Education Curriculum
In case of earthquake, go to a safe place before posting on social media. The unit includes 12 lessons, most with hands-on activities or experiments. The first six lessons cover the physical process of earthquakes and volcanoes. Lessons...
6th - 12th Science CCSS: Adaptable
The Genius of Mendeleev's Periodic Table
The author-narrator refers to the periodic table of elements as a "massive slab of human genius," then goes on to explain Mendeleev's development of this foundational chemistry tool. Why was his version so much better than others that...
4 mins 4th - 12th Science CCSS: Adaptable
Solving the Puzzle of the Periodic Table
Did you know that the first time someone isolated a pure element was when Henning Brand boiled down his own urine in 1669 and unknowingly discovered phosphorus? The history of our current periodic table of elements is entertainingly...
4 mins 8th - 12th Science CCSS: Adaptable