EngageNY
Construct an Equilateral Triangle (part 1)
Drawing circles isn't the only thing compasses are good for. In this first installment of a 36-part series, high schoolers learn how to draw equilateral triangles by investigating real-world situations, such as finding the location of a...
Centers for Disease Control and Prevention
Hand Washing Experiment
An engaging experiment allows scholars to understand why the recommendation is to wash for 20 seconds with soap and water — while making them aware of their own habits!
Code.org
One-way Functions – The WiFi Hotspot Problem
Pupils attempt to solve the Wireless Hotspot Problem and learn why it is considered a computationally hard problem in the ninth lesson of the series on 12. They also learn about one-way functions and how the Wireless Hotspot Problem is...
Curated OER
Fractions and Paper Folding
In this fraction lesson, students manipulate paper by folding it to create different shapes and sizes, they explore the concept of fractions, and discuss their observations as a class. This is a great lesson for getting students...
Curated OER
Regular Polyhedra
Tenth graders investigate the history of geometry and its different shapes. In this geometry lesson, 10th graders practice seeing three dimensional shapes and explain why there are only five polyhedra. They relate all the new materials...
Curated OER
Parabolas
Students find equations of parabolas in real world scenarios. In this finding equations of parabolas in real world scenarios lesson, students find the equations of parabolas of US landmarks. Students put a grid on landmarks such as the...
Curated OER
Fractions and Paper Folding
High schoolers explore the concept of origami. In this origami lesson, students construct picture frames out of paper. High schoolers find the midpoint of the paper and determine the fractional area of the paper as it is folded.
Curated OER
Plane, Graphs and Paths
In this plane worksheet, students provide that a graph is bipartite, identify the paths, and identify a planar graph. This one-page worksheet contains five problems.
Curated OER
Word Problems
In this geometry worksheet, students read a scenario and translate it using geometric concepts to find their answers. There are 15 questions with an answer key.
Curated OER
Areas of Polygons
Students calculate the are of regular polygons. In this geometry lesson, students create polygons on the computer and move it around to create different shapes. They explore the area of different polygons and how they inter-relate.
Curated OER
Arithmagons
Fifth graders explore patterns and relationships among the numbers that form arithmagons. They create and attempt different rules that can be used to solve arithmagons. Students use linear algebra to solve arithmagons.
Curated OER
Fractions
Students study fractions. In this art lesson, students fold paper, use origami, making new shapes and discuss the area of the shapes created.
Curated OER
Euler Characteristic
Students identify the different properties of Euler's Characteristics. In this geometry lesson, students identify the shape and surface a polygon. They relate the concept of Euler to solving real world problems.
Curated OER
Distance And Parallax
Students will determine distances to nearby stars using parallax. In this Astronomy lesson plan, students will use a web program, trigonometry, and sketches to determine the distance of stars.
Curated OER
Constructing Geometric Shapes
For this construction geometric shapes worksheet, student use the software program for instruction then construction shapes and bisect angles for four questions.