Lesson Plan No 1

LESSON PLAN

Unit

: SMP

Grade / Term

: VII / 1st semester

Subject

: Science – Chemistry

Chapter mixture

: 2. Element, compound, and

Time

: 2 x 40 minutes

A. STANDARD COMPETENCE : Students are able to understand the elements, compounds and mixtures. B. COMPETENCE BASIC: Comparing the characteristics of element, compo

und and mixture.

C. INDICATORS TO ACTIVE COMPETENC: 1. Comparing the characteristics of element, compo und and mixture based of observation. 2. Making a simple classification table of the materials. 3. Grouping the daily life substances into homogene ous and heterogeneous. D. OBJECTIVES: The first lesson Students are able to: 1. Identifying the characteristics of element, compound and mixture. 2. Comparing the characteristics of element, component and mixture based of observation.

3. Explaining the definition of homogeneous mixture and

heterogeneous mixture. E. TEACHING MATERIALS: - Element is a single substance that cannot be bro ken down into simpler substance by chemical reaction ( not nuclear reaction ).Element consist of similar atoms. -

Compound is a single substance that consist of more than one elements with special proportion and various forming components.

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Mixture is a combination of two or more substances. The component of a mixture are not react one another and not special proportion.

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Mixture can be grouped into two types, homogenous and heterogeneous. Homogeneous mixture is the mixture that it’s composition has a similarity in each part. Homogeneous mixture is also names solution. Heterogeneous mixture is the composition has not similarity in each part.

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Teaching Models: Cooperative teaching, discussion, experiment, presentation. Scientific Skills: identifying, classifying, communicating predicting. F. Teaching Learning Processes 1. Introduction. a. Remind the student about the concept of element compound and mixture. b. Motivate students by asking. - what do you know about element? - Your according how characteristic element compound and mixture? 2. Main Activities. a. The teacher asks the students to make a group of five and assign them to observe the materials on their table. b. The teacher guides the student while they are working in group.

c. The teacher asks the student to present and discuss the results. d. The teacher asks them to draw the conclusion.

3. Closure - The teacher ask the students to write down materials in the kitchen and classify them into Groups of element, compound and mixture. Sources: –

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Science Students Books. Worksheet. Assessment 1. Assessment Techniques -Written, performance 2.

Instruments. -multiple choice, essay. 3. Example items a. Multiple choice 1. Which op the following substance is an element? a. Water b. Air

c. carbon d. sugar

1. The following properties are observed.

1.Can be separated by physical changes 2.Single substance 3.Can be broken down by chemical reaction 4 The properties of a compound? a. 1 and 2 b. 3 and 4

b. Essay.

c. 2 and 3 d. 2 and 4

Mention the differences between element, Compound, and mixture?