Backyard Butterflies Teaching Guide

Transcription

1 Backyard Butterflies Teaching Guide Lesson 2 BUTTERFLY LIFE CYCLE Objectives: 1. Learn how insects grow. Students will learn the differences between human and insects. 2. Students will learn the life cycle of the butterfly: egg, caterpillar or larva, chrysalis, and the adult or butterfly. Material Needed: Life cycle line drawings for wheel book Copies of the wheel book pattern on card stock Life cycle line drawings for picture book Card stock paper (4" X 6" for cards) for picture book Brads Glue Scissors Crayons, markers Student Handouts: "Are You Like a Butterfly?" "Butterflies Are Insects" "Name the Stages of a Butterfly" "The Butterfly's Life Cycle" "Making Life Cycle Picture Cards, Books, & Wheel" Evaluation: Book. Students will complete the handouts and make a Butterfly Life Cycle Book and Wheel Visit Backyard Butterflies online at Lesson 2

2 DO Distribute Lesson 2 "Are You Like a Butterfly?" "Butterflies Are Insects" "Name the Stages of a Butterfly" Give out the student handout - The Butterfly's Life Cycle line drawings for the wheel book, copies of the wheel book pattern on card stock, Life Cycle line drawings for picture book, card stock paper (4" X 6" for cards) for picture book, Brads, Glue, Scissors, Crayons, and Markers. Lesson 2 BUTTERFLY LIFE CYCLE SAY Butterflies undergo enormous and dramatic physical changes during their lives. Before they are fully-grown, they must pass through three distinct stages. Did you ever wonder why there were no baby butterflies? They begin life as an egg, from which hatches the caterpillar, or larva as it is sometimes called. This, in turn, changes into a pupa, or chrysalis, from which the fully formed wings adult or butterfly finally emerges. The length of the life cycle varies. Some species have just one life cycle in a year, while other species have two or more. Sometimes, because of changes in the climate, the onset of winter or the dry season for example, the life cycle may be interrupted and no further development takes place for a while. This can happen at any stage in the life cycle, but when it occurs in the winter, it is called "hibernation." Butterflies are insects because they have 6 legs, 3 body parts, wings, antennae and eyes. Complete the student handout "Butterflies Are Insects." Complete the student handout, "Are You Like a Butterfly?" and complete the student handout "Name the Stages of a Butterfly." To make the Life Cycle Wheel Book, cut out the Life Cycle line drawings and the two wheels. On one wheel cut out an opening. On the other wheel glue the line drawings of the 4 stages of the Life Cycle of the Butterfly. Punch a hole in the center and place a brad in the hole, To make the Life Cycle Picture Book: Cut out the 6 drawings. Glue a picture to each of the card stock. Have students sequence the pictures. Have students match the words to the pictures. After students are Visit Backyard Butterflies online at Lesson 2

3 the words to the pictures. After students are comfortable with the sequence, have them make their own life cycle book, an accordion fold book, unfolding book. Visit Backyard Butterflies online at Lesson 2

4 MAKING LIFE CYCLE PICTURE CARDS, BOOKS & WHEEL 1. After observing and reading about the complete life cycle, review the different stages. 2. Make large picture cards of each stage (see line drawings attached, or each student draw their own). 3. Each student sequences the pictures. 4. Each student matches the words to the pictures. 5. After students are comfortable with the sequence, make their own life cycle books, using the line drawings or drawings of their own. Possible types of books include a wheel book, an accordion fold book, and an unfolding book. To make the wheel book, each student should cut out the two pages of a wheel, and then glue the 4 small pictures of life cycle line drawings to the wheel with the dotted lines. Cut out the triangle in the other wheel drawing. Punch a hole in the center of the two wheels and place a brad in the hole. Visit Backyard Butterflies online at Lesson 2

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8 EGG NEW CATERPILLAR CATERPILLAR J CATERPILLAR CHRYSALIS BUTTERFLY EGG NEW LARVA LARVA J LARVA PUPA BUTTERFLY Visit Backyard Butterflies online at Lesson 2

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