"The Greedy Triangle"

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...

Fourth graders recognize and classify geometric figures. For this geometry lesson, 4th graders read the books Shape Up and The Greedy Triangle and prepare a short report on the shapes mentioned in the text. Students compare the polygons...

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...

 For 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.

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

Third graders recognize basic geometric shapes. In this literature and math lesson, 3rd graders listen to The Greedy Triangle and make predictions about what the triangle will become. Students read ten clues about a mystery animal made...

Learners discuss figures with various numbers of sides.  In this geometry lesson, students are read The Greedy Triangle by Marilyn Burns, they participate in a class discussion of many sided figures and are introduced to the term...

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...

Learners 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...