# Warm-Ups 2D & 3D Shapes 2D Shapes

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1 Warm-Ups 2D & 3D Shapes The Mystery Shape Students are given 4 clues describing the mystery shape. Eg: I have 3 straight sides. What Am I? I drew a shape with 4 sides. What might my shape look like? It is important that the students see all the 4 sided shapes that are produced. I have 3 points A roof is sometimes this shape. The first three letters of my name are tri About My Shape Students are shown a 2D shape and asked to provide three features about it. Eg: Triangle I have 3 sides I have 3 corners Which Shape Am I? Students work with a partner. One person turns so their back is facing their partner. The child facing the back draws a 2D shape with their finger on their partner s back. The partner needs to guess the shape. After 3 turns pairs swap places. Part of my name tri means 3 I have 3 pointy ends

2 Shape Hunt Show the students a 2D shape. Name it and list a few of its features. Now have the children go on a Shape Hunt in the room/outside to locate the shape. Students are asked Where was it? Where did you find it? What does it do? *Discuss that ALL shapes in our environment have a function. Feel the Shape Place a number of 2D shapes in a bag. Have a student come out the front They have to have their back to the teacher and their hands behind their back. The teacher pulls out a shape and shows the class. The teacher then places the shape in the student s hands. They child has to tell the class 3 features of the they can feel and then name the shape. shape Hear My Shape Students are given paper and pencil. They are asked to draw lines matching the sound they hear and to follow the direction at the end of each sound. Eg: da, da, da, da, da Go down da, da, da, da, da Turn left da, da, da, da, da Go up Quiz Time How many sides does a square have? How many points on a triangle? How many straight lines does a rectangle have? How many corners in a circle? What did you hear?

3 What did I draw? I drew a shape with 4 sides. What might my shape look like? (It is important that students see all the 4 sided shapes that other students have produced). What is in my hand? (2D shapes) In my hand I have an object that has no edges What might it be? Check for a variety of shapes. I Spy (2D shapes) What objects in this room could pass through this opening. (Relate this to a letter box) Use a box cut an opening 20cm by 8cm. I Spy (3D shapes) I can see a boxed shape object in this room. What object can I see? Note how well children visualise before selecting an object.

4 Draw me I made a picture using only circles and squares. What might my picture look like? What is in my hand? (3D shapes) In my hand I have an object that is able to roll. What might it be? Check for a variety of shapes. I am thinking of a shape Give 3 clues. I have 4 sides. I have 4 corners. In the classroom environment I am the shape of a book. Shapes hiding in our room Children are given 1 minute to locate and write down as many 2D or 3D shapes they can.

5 What Am I? I drew a shape with four sides but none of the four sides were the same length. Facts Show students a shape and have them write 4 facts about that shape. Shape Hunt Show students a shape and ask them to locate it in their environment. Ask: Where was it? Where did you find it? What does it do? (Every shape has a function). Tell Me 5 Things About... Show students a shape and ask them to tell you 5 things about that shape. It is a triangle It has 3 sides It has 3 corners The word tri means 3 It is a 2D shape

6 It s In the Bag In a bag (pillow case) place a 2D or 3D shape. A student is asked to reach into the bag and feel the shape. Before they guess, the student must describe what they feel. It has 4 straight sides The sides are not all the same length. Hear the Shape Have a student come out to the front of the classroom with their back to the board. Tell the student that they have magical powers and that you are going to prove it. You will draw the shape using sound (noise) so the student can actually hear it being drawn. This is best done with a chalk board. If a chalk board is not available make noises as you draw, signifying the length of each line. Shape Heads Select 3 students to come out the front. Each student wears a headband with a picture of a shape on it that they cannot see. The students can ask the class questions about their shape. The class can only answer YES or NO to the questions. Make Me A... Using a variety of 2D shapes students to create a face. Using a variety of 2D shapes students are asked to create a house. Using a variety of 2D shapes students are asked to create a flower. Using a variety of 2D shapes students are asked to create an animal.

7 3D Shapes Shape Hunt Show the students a 3D shape. Name it and list a few of its features. Now have the children go on a Shape Hunt in the room/outside to locate the shape. Students are asked Where was it? Where did you find it? What does it do? 3D Shapes Quiz Time How many faces does a cube have? How many points on a triangular prism? How many straight lines does a cube have? How many corners in a sphere? *Discuss that ALL shapes in our environment have a function. 3D Shapes Feel the Shape Place a number of 3D shapes in a bag. Have a student come out the front They have to have their back to the teacher and their hands behind their back. The teacher pulls out a shape and shows the class. The teacher then places the shape in the student s hands. They child has to tell the class 3 features of the shape they can feel and then name the shape. 3D Shapes About My 3D Shape Students are shown a 3D shape and asked to provide three of its features. Eg: Sphere Smooth No corners No lines

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