Curated OER
Exploring Polygons and The Greedy Triangle
Excellent lesson plan! 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),...
Curated OER
Geometry Scavenger Hunt
Students hunt for hidden geometric shapes and compare the properties of various shapes. In this geometry lesson, students play a game of finding squares, circles, rectangles, and ovals that have been hidden around the classroom. Students...
Pennsylvania Department of Education
Making Triangles
Learners use interactive geoboards to identify simple geometric shapes. In this making triangles lesson plan, students describe the properties associated with geometric shapes. Learners develop spatial sense and the mathematical meaning...
Exploratorium
Exploring Pattern Blocks
Pattern blocks are one of the best math manipulatives ever invented. They are used quite extensively in the math lesson presented here. Youngsters use the pattern block to fill in shapes that are present on the worksheet embedded in the...
Curated OER
Primary Geometry
Students identity simple geometric shapes. In this early geometry lesson, the teacher introduces students to triangles, squares, and rectangles, then students identify and classify the shapes as they are found in the classroom. To...
Alabama Learning Exchange
Twisted Tangrams
Primary geometers create a picture using tangrams. In this geometry lesson, students read Grandfather Tang: A Tale Told with Tangrams, cut out their own tangrams, and choose a character from the story to make using their tangram pieces.
Curated OER
Classifying Polygons
Students study polygons. In this math instructional activity, students play a game in which they learn the classification system for polygons. Students identify the properties of quadrilaterals.
Curated OER
Shape Hunt
Students explore two-dimensional and solid shapes. In this shapes and patterns geometry lesson, students work with a partner to create identifiable objects using tangrams. Students describe the attributes of their shape and their partner...
Curated OER
Ocean Exploration: Shapes and Patterns Under the Sea
So many shapes in our vast oceans. Young explorers can discover new shapes in a variety of ways in this lesson. One way is having free exploration with a pattern shape kit handed out by the teacher. Another is by viewing a video, Ocean...
Curated OER
Geo-Wrap Vests
First graders use geometric shapes to create and extend patterns. Students read a book and view African garments. They identify patterns in the garments. Students create and decorate a paper vest with geometric patterns.
Curated OER
Let's Learn about Symmetry
Students explore symmetry in architecture. In this cross curriculum art and architecture lesson, students fold paper to illustrate symmetry and identify symmetrical and asymmetrical shapes. Students observe photographs or take a walk...