Illustrative Mathematics
Illustrative Mathematics: Ordering Numbers
Given a set of numbers, students need to decide where to place another set of numbers so they are ordered from least to greatest. This is a good precursor to greater than/less than. A detailed example is included.
Constitutional Rights Foundation
Constitutional Rights Foundation: Developments in Democracy
Activity for high school students in which they apply Constitutional reasoning to explore the topic of equality for women and debate the necessity of an Equal Rights Amendment. Site provides comprehensive background and resource material...
Other
Stat Soft: Statistics Glossary
Dozens of statistical terms are defined and illustrated in this glossary.
Illustrative Mathematics
Illustrative Mathematics: Guess the Marbles in the Bag
Students will make their best guesses as to how many marbles are in a bag. After recording 4-5 guesses, the teacher writes the number representing the total on the board, and the students then help sort their guesses into less than,...
Better Lesson
Better Lesson: Bigger or Smaller
Second grade students are asked to apply two complementary processes: counting and grouping. The conceptual understanding of the place value of a number and combining/separating numbers using place value, are critical aspects of...
Illustrative Mathematics
Illustrative Mathematics: Picturing Factors in Different Orders
The purpose of this task is to help young scholars picture the multiplicative structure of the number 30 in different ways. Some of this structure is easier to communicate using grouping symbols, as it is easier to interpret...