Curated OER
New Visions of the World
Students explore the art of Kazimir Malevich and Piet Mondrian as an analysis of abstract painting. In this abstract painting lesson, students explore the painting style of the two artists. Students analyze the use of shape, line,...
Curated OER
Symmetries of a Quadrilateral I
Learners examine the properties of quadrilaterals from the point of view of rigid motion. Different types of quadrilaterals are characterized by their symmetries, so learners explore the symmetries of a described quadrilateral to...
Curated OER
Investigation-How Many Toothpicks?
Seventh graders use toothpicks to investigate a series of designs and identify patterns. Data is organized and analyzed using tables and graphs, and students make generalizations using algebraic expressions.
Improving Measurement and Geometry in Elementary Schools
The Sum of the Interior Angles of a Polygon
Junior geometers discover that polygons can be decomposed into triangles and that the number of triangles can be determined by a rule. Note that the Geometer’s Sketchpad® software is required to carry out all components of this lesson.
Curated OER
Line: a Geometric Exercise
Students study the different types of lines and create a drawing demonstrating what they learned.
Curated OER
Tangrams
Students construct tangram pieces. Then they make observations and explore patterns with the pieces.
Curated OER
Angle Exploration and Classification
Students compare and contrast angles and identify them as acute, obtuse, right, or straight angles. They create rays and angles using uncooked spaghetti, read and discuss key vocabulary terms, and complete a variety of geometry worksheets.
Curated OER
Gesture Drawing
Students investigate the use of proportion using gesture drawing as the subject matter. They create a painting using the elements of art and principles of design.
Curated OER
String Eggs
Students follow instructions to make a string egg and work appropriately and neatly with art materials.
Curated OER
Reflective Solar Cooker
Students build and use a reflective solar cooker to cook marshmallows.