In a class discussion, have the students talk with a partner about what is a useful tool. Older students may quickly realize this is the same as the degrees in a circle. Some students might stay with one shape throughout the book, others might switch when they felt they greedy triangle writing activity third found all the shapes that they were looking for; some students might re-title the book, My Shape Book, and looked for both shapes.
However, this activity would also be a great introduction to the unit as it has them looking at the attributes of various polygons. Create an anchor chart to display student thinking. Older students may quickly realize this is the same as the degrees in a circle.
I handed out the Greedy Triangle Notemaker. The third book uses quilt patterns one for each letter of the alphabet to illustrate facts about pioneer life. After reading, introduce the vocabulary words of triangle and quadrilateral [on page 2 of the Greedy Triangle Useful Poster Guide].
To clarify my students thinking I ask How do you know this. One more angle and one more side is being added. Students should talk about how people in the community use tools.
Learning Objective Determine the pattern of angle measures in polygons Activities While reading, have students measure the angles in an equilateral triangle, like The Greedy Triangle, and begin recording a chart for each type of polygon and the sum of the angles in that polygon.
Have students create non-examples as well and then allow time for groups to present their posters. Learning Objective Identify and describe shapes squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres.
After reading, have students become their favorite shape and tell what they would be, the same way The Greedy Triangle enjoys being a book page as a quadrilateral, or a beehive as a hexagon. Discuss the attributes of each shape.
For example, all rectangles have four right angles and squares are rectangles, so all squares have four right angles. Download a sentence stem starter, or let students construct their own. Learning Objective Reason with shapes and their attributes Activity Read The Greedy Triangle and pause to let students guess the next shape.
I was thrilled with the language they were using to talk about the figures. It also supports the 5th grade Common Core Standards where students need to understand attributes belonging to a category of two-dimensional figures also belong to all subcategories of that category.
When I am able to see my students I can read their body language to tell if they are understanding and attentive listening. Decide what other shapes could fit in the category, such as squares, rhombuses, and rectangles all belonging to the quadrilateral page.
Then have them write what their shape became. You will also want to begin using the correct terms for each attribute. After reading, challenge the students to see a pattern in the change in angle measurements when a polygon adds one side. Fifth Grade Standards G.
After several minutes of fun, I give the students three straws and ask them to go to their seats. If I have to make groups of 4, then the fourth person becomes the "shapshifter" of the group.
We came together as a class and compiled the individual ideas into an anchor chart. The final and crowd favorite part of the project was bringing their shapes to life by adding eyes, mouths and other components.
Today I ask my students to discuss for one minute, "What 2D regular shapes do you see around you.
Learning Objective Identify and describe shapes squares, circles, triangles, rectangles, hexagons, cubes, cones, cylinders, and spheres.
I like to sneak in some geography and mapping by telling the students they have to sit north of my set equator - an imaginary line in the classroom.
I revealed a chart that included columns headed with the letters T, S, P, H, O, R and together we listed one character trait that began with each of those letters. This lesson will integrate literature, writing, math and art in one final student created book - which goes into the students portfolio of work summative assessment.
After a quick minilesson on alliteration score another point for embedding state test revieweach of my friends selected a character trait that began with the same letter as the polygon they had been writing about. Look for and express regularity in repeated reasoning.
I put the book under my document camera so the students can see the pictures better than if I was holding the book up. Obtain a copy of The Greedy Triangle by Marilyn Burns, Round Trip by Ann Jonas, or Eight Hands Round by Ann Whitford Paul.
The first book tells the story of a triangle who wants to experience life as other shapes and is transformed into various ones. In the story "The Greedy Triangle," the main character is dissatisfied with being a triangle, and asks a shape shifter to have one more side and one more angle.
He's not satisfied, and his journey continues from the three sided, three angled shape of the triangle all the way to a dodecagon, 12 sides and 12 angles.
After lunch I read, The Greedy Triangle by Marilyn Burns. I had cut 10 strips of paper and attached them to each other using metal brads. At the start of the story I held 3 of them with the others folded in the back to form a triangle.
Lesson Overview & Objective: After guiding students through an exercise on giving reasons for something being useful, students listen to The Greedy Triangle by Marilyn Burns and determine how triangles and quadrilaterals are useful.
Students make books that show where the shapes occur in. The teacher begins the lesson by reading The Greedy Triangle to the class to review shape names and attributes. The students create shapes using geoboards and follow up their exploration with Shape Concentration (a game played with a partner).
This sample lesson plan uses the book "The Greedy Triangle" to teach about the attributes of two-dimensional figures. The plan is designed for second-grade and third-grade students, and it requires a minute period for two days.Greedy triangle writing activity third