Curated OER
Rita's Ice Problem
In this algebra worksheet, 11th graders calculate how many different choices they can create making their icy. The have a choice of 26 different flavors of ice and 5 different flavors of ice cream. There is a solution to this problem.
Curated OER
Word Ladders
In this secondary mathematics worksheet, students follow Lewis Carroll’s rules to solve Word Ladders. The one page worksheet contains two word ladder problems. Solutions are provided.
Curated OER
Complex Analysis: Complex Exponential
In this complex exponential instructional activity, students identify an entire function and explore how to show a function is analytic. This two-page instructional activity contains four problems, as well as explanations and examples.
Curated OER
Gougu Rule or Pythagoras' Theorem
Fifth graders explore Pythagoras' Theorem. They examine the pattern linking the length of the hypotenuse of a right angled triangle and the length of the other two sides. Students find an unknown side in right angled triangles.