PPT
Curated OER

The Periodic Table

For Teachers 9th - 12th
In this periodic table worksheet, learners complete a paragraph containing facts about the periodic table by filling in 18 terms from a word list.
PPT
Sophia Learning

Sophia: Types of Proofs: Lesson 3

For Students 9th - 10th Standards
This lesson will introduce flow chart proofs, paragraph proofs, and two-column proofs, and explain the similarity and differences between the different types of proofs. It is 3 of 5 in the series titled "Types of Proofs."