"The Greedy Triangle"

First graders explore geometry by reading a story with their classmates. In this shape identification lesson, 1st graders discuss the differences between two and three-dimensional figures and identify the characteristics of common...

Building on young mathematicians' prior knowledge of three-sided shapes, this lesson series explores the defining characteristics of different types of triangles. Starting with a shared reading of the children's book The Greedy Triangle,...

Excellent lesson! Anne Linehane's geometry story, The Greedy Triangle, offers an opportunity to practice forming various types of polygons with your learners. Using elastic bands (or Chinese jump ropes), partners form the various shapes...

Second graders discover geometric shapes by listening to a story.  In this geometry lesson, 2nd graders read the story The Greedy Triangle in class and create shapes spoken about in the book with construction paper.  Students discuss the...

 In this geometry lesson, learners read The Greedy Triangle and use geoboards to construct geometric shapes. They identify the number of sides and angles each shape has.

Learners read The Greedy Triangle and discuss geometric solids. For this geometry lesson, students list the geo-solids in the world and create a graphic organizer to show where geo-solids exist.

Young learners listen to the story book The Greedy Triangle as the teacher introduces new polygon shapes. They use geometric stencils to trace a quadrilateral, a pentagon, a hexagon, and an octogon onto a foldable notepad. They identify...

Third graders use the book "The Greedy Triangle" to practice measuring perimeter and area. They also calculate the length of objects.

Students examine the name of a number of geometric shapes including the triangle, quadrilateral, pentagon, hexagon, octagon, nonagon, and decagon. They listen to a reading of Marilyn Burns, "The Greedy Triangle," before making shapes...

Students make designated geometrical shapes using geoboards. In this geometry lesson, students listen to Marilyn Burns, The Greedy Triangle, while listening for the names of geometric shapes. They make the shapes on geoboards by...