Kindergarten

Topic: Shapes

Grade Level

Kindergarten

Estimated Length

30 minutes

Rationale

This lesson takes a concept that students have some prior knowledge and build on it by teaching vocabulary using Realia. By having a physical representation of each shape students are able to make a lasting connection between the word, and its visual imagery.

Kansas Standard(s)

Geometry:

3.1.1. The student recognizes circles, squares, rectangles, triangles, and ellipses (ovals) (plane figures/ two-dimensional figures) (2.4.K1e).

3.1.2. The student recognizes and investigates attributes of circles, squares, rectangles, triangles, and ellipses using concrete objects, drawings, and/or appropriate technology (2.4.K1a,e).

3.1.3. The student sorts cubes, rectangular prisms, cylinders, cones, and spheres (solids/three-dimensional figures) by their attributes using concrete

Objectives

Students will be able to meet the following objectives with 80% accuracy.

  • Students will identify different shapes and sizes by sorting.
  • Students will group shapes that are similar and different.
  • Students will use shapes to create patterns.

Assessment Plan

Students will be assessed based on their ability to group similar shapes, identify shapes that

doesn’t belong and create patterns with various shapes.

Materials

Shapes made from foam: rectangle, square, triangle, rhombus/diamond, octagon and circle

A print copy of the name for each shape

Preparation

Prepare at least five of each shape. Students should already know how many sides each shape has through reading and lecture

Introduction (verbatim)   

Ask students to sit on the carpet in a circle. Let’s review what we already know about shapes.

Ask students how many sides does a square have? Allow a minute for students to respond.

A square has 4 sides.

How about a triangle-how many sides does a triangle have?

A triangle has 3 sides. Show students a foam rectangle. Pass it around for them to touch. What shape is this?

 Let’s count the sides and see. Together count the sides. What shape do you think it is? It has four sides---Are all the sides the same or are some of the sides longer than the other? Based on students response, agree and reinforced their answer or disagree and remind students what constitute a square versus a rectangle.

 Do the same for a triangle, the circle, the rhombus or diamond and the octagon.

Review the definition of each shape.

Tell students that the purpose of today’s activity is to continue to learn the difference among the various shapes and to be able to identify and group similar shapes. You will also learn to match the shape with its vocabulary word.

Main Activity (or Activities) Sequence

Details of the lesson:

  Allow students to play with the shapes freely.

  1. Now put students into 3 0r 4 groups of three. Divide the shapes among the groups making sure that each group has at least two shapes and at least 5 counts of each shape.
  2. Now ask students to group similar shapes together.
  3. Visit each group to see how they group their shapes. Make a note of any groups that did not group similar shapes-
  4. Ask each group to now organize the shapes into a pattern, such as square, triangle, square or rectangle, rectangle, rhombus, rhombus.
  5. Visit each group to see what pattern they created.
  6. Bring all groups back together as a class. Tell students that we will begin to match the word to the shape.
  7. Hold up each word one at a time, and say it. Ask students to repeat the word.
  8. Hold the shape and word together for students to see. Say the word again. Ask students to repeat it. Do the same for all words, and matching shape.
  9. Now move all the shapes into the middle of the circle.
  10. Tell students to pick up the shape when you say the vocabulary word.
  11. Begin with a circle. Say “circle”. Now ask the students to each pick up a circle.
  12. Continue with all the shapes and their corresponding vocabulary word.

Make a mental note of shapes that were identified incorrectly and by which student.

Closure (verbatim)

Ask students to sit at a desk. Put a container with markers and pencils on the table. Now give each student a piece of construction paper. Ask students to draw their favorite shape. Ask students to show their drawings as you call out the shape and show the vocabulary