Better Lesson
Better Lesson: Broken Ruler Measurements
Using a broken ruler requires students to turn to addition and subtraction skills in order to determine measurements.
Better Lesson
Better Lesson: Classroom Math Tools
Students should develop an awareness of and correctly use the classroom tools that are available to assist them with their mathematical learning. This lesson introduces them to math manipulatives and a math journal. Videos of students...
Cut the Knot
Cut the Knot!: Geometric Construction With the Compass Alone
This site explains the possible uses of a compass when drawing. There are numerous exercises for using a compass with links to the solutions - click on the red checkmarks for these. The site discusses mathematicians who contributed to...