Lesson Plan
Illustrative Mathematics

Illustrative Mathematics: S Ic Strict Parents

For Teachers 9th - 10th Standards
In this task, students want to estimate the proportion of students in the school who thought of their parents as "strict". They do not have time to interview all 1000 students, so they plan to obtain data from a sample of students....
Graphic
Curated OER

Educational Technology Clearinghouse: Clip Art Etc: Profile Bust of Thucydides

For Students 9th - 10th
Thucydides was a Greek historian and author of the History of the Peloponnesian War, which recounts the 5th century B.C. war between Sparta and Athens to the year 411 B.C. Thucydides has been dubbed the father of "scientific history" due...