Amber Bollig

Tara Hahn

Math & Science

10/30/98

Lesson Information:

-The Life Cycle of a Leaf- a leaf starts its life in the spring when it pushes out of buds on a tree branch. Then it begins to make food called sugar sap for the tree. The roots of the tree take water and minerals from the ground and send it up to the leaf. The leaf makes sugar sap all summer long until the air grows cooler and days get shorter. Then the tree creates a sort of scab where the leaf stem attaches to the branch, so nothing can get in or out of the leaf. Slowly the leaf begins to die. Finally the leaf breaks off and falls to the ground, which is why autumn is also called fall. Then rotting leaves and plants replenish the earth with important nutrients.

-Ash leaf- green ash, pale to rich yellow; 1 to 3 inches long. Widespread throughout the country, except southern Florida and the West.

-Ginkgo leaf- yellow, 1 to 3 inches long. Throughout eastern United States and the pacific coast.

-Cottonwood leaf- brown, 3 to 4 inches long. Located in most of eastern half of United States and parts of Canada.

-Oak leaf- brown, 6 to 8 inches long. Located in most of eastern half of U.S.

-Sycamore leaf- brown, 5 to 12 inches. Located in Eastern half of U.S.

Key Idea or title: Learning to use the numbers one through five (in Arabic)

Goal: Math Process: Communication & Connections

Math Product: Number Sense

Science Process: Using Numbers & Classifying

Science Product: Counting types of leaves according to characteristics.

Prerequisite skills and concepts: knowing different places we can find leaves & having

basic concept of numbers.

Lesson Activities:

1. Exploration Phase

   Objectives:

   The Students will list what the students know of leaves and also what they want to know in the K and W part of the KWL chart.

   The students will write the highest number they can count to on a piece of paper.

   Materials:

   KWL chart

   Paper for each student

   Crayons

   Introduction to Lesson

   Ask the question, "what do you know about leaves."

   Procedure: student activities which:

   Confront prior knowledge- fill out K and W of the KWL chart

   - have the students write the highest number they can

   count to on the paper provided.

   Relate previous knowledge to new idea- explain today's lesson, which is,

   focusing on five chosen leaf types and

   counting to five.

   Try out prior knowledge- show visual aids that have leaves in different settings

   and see if the pictures correlate with what the students

   know of leaves also while looking at pictures.

   Evaluation:

   Review the K and W part of the KWL chart and collect sheets of paper to see how high they could count.

    

2. Invention Phase

   Objectives:

   The students will communicate and identify the first five numbers in Arabic, while

   we are showing the visual aids.

   The students will classify the five different types of leaves by counting and

   writing how many there are in the picture on the worksheet.

   Materials:

   Worksheet

   Crayons

   Number visual aids

   Leaf visual aids

   Procedure: instructor/students activities which:

   Provide explanations/examples- showing the visual aids of the numbers and the

   leaves and the students will say the numbers and leaf types

   Provide practice- filling out the worksheet

   Provide closure- filling out the L part of the KWL chart

   Evaluation:

   Have a checklist to check the students reciting the numbers and types of leaves.

   Collect worksheet and grade.

    

3. Expansion Phase

Name -------------------------------------

Students recite numbers -------------------------------------

Understanding of Leaf -------------------------------------