Math

Geometry - Introducing Circles

Using an elelment of mystery and discovery, a good large group activity to introduce a basic concept. The vaiations are good small group fallow-up activities that can be adapted to the needs of your group.

Objectives

pkp_mt_sh_introduction_circ.jpg

Children ages 4 and up can find similar shape (to that shown) in the environment. Cog. IIID
Children ages 3-4 can when shown two objects, tells how they are the same or not the same. Cog. IIIA
Children ages 2 ½-3 can uses negative statement, "circle" and "not circle". Lang. IIIA
Children ages 2-3 can match identical objects Cog. IIIA
and ages 1-1 ½ years can approximate the word "circle" and points to it. Lang. IA

Materials

Flannel board; box of felt circles (same size) and assortment of other shapes; treasure box with felt circle inside; yarn.

Procedures

1. Hide treasure box with felt circle inside. Can the children find it and guess what's inside?

2. Open the box and place circle on flannel board, identifying the shape as a circle.

3. Place piece of yarn around circle on board. Remove felt circle. Identify yarn shape as a circle and as a curved line whose ends meet.

4. Replacing felt circle on board, show box full of felt circles and other shapes. Children take turns closing eyes, choosing a shape and placing it next to circle on board. Do the shapes match? Circles are left on the board and other shapes are taken off. Continue until each child has a turn and/or each shape in the box has been identified as a "circle" or "not a circle".

5. Can the children think of some circles they see every day? (plate, record, wheel, pizza, sign, etc.) Have them look around the room for circles and when they spot one, raise a hand. To the tune of "Did you ever see a Lassie?" you might sing "Did you ever see a circle, a circle a circle? If you see a circle

(Tim) show us one now."

NOTE: "Circle" is a difficult word for young children to pronounce. Accept any close approximation.