Illustrative Mathematics
The Lighthouse Problem
Long considered the symbol of safe harbor and steadfast waiting, the lighthouse gets a mathematical treatment. The straightforward question of distance to the horizon is carefully presented, followed by a look into the different...
Texas Instruments
The Leaning Tower of Pisa
Learners estimate the equation of a line, angle of elevation and depression in this math lesson. They analyze e famous landmark design and make connections to algebra and geometry. They will also generate an equation, model the x and y...
Curated OER
Maine: State Facts
Students participate in various activities focusing on facts about Maine. They participate in interactive lessons with trivia facts, symbols, and statistics. They research the meaning of the state flag.
Curated OER
The True Story of Abbie Burgess
First graders read a story from their textbooks about women in the 1850's. They discuss what it was like to be a woman living in American during this time period. They brainstorm heroines of American history and then discuss woman...
Curated OER
This Little Light of Mine
Elementary schoolers discover how electricity travels and create an electron flow through a closed circuit. They work together to make a closed circuit and observe the electricity being made. This outstanding lesson plan is well worth...