Shmoop
ELA.CCSS.ELA-Literacy.RI.9-10.10
Make sure that your pupils have mastered complex literary nonfiction by the end of the year and use this resource to help get them to that point. After a brief description of the Common Core standard, a list of age-appropriate...
National Park Service
Subalpine Web
The theory of keystone species in an ecosystem was first established in 1969 by Robert T. Paine. Pupils open the final lesson in a five-part series with a game guessing which member of the alpine ecosystem they are based on clues. After...
Hopelink
Hopelink: Teaching Percentages
Students can brush up on percentage skills with this lesson and calculate percentages using the "Percent Tricks method." For students to successfully use this method, they must have the ability to multiply and divide whole numbers.