Lesson Plan in Science Grade 7 Mae Amor T. Enorio Valencia National High School 0917-133-8846 Content Standard: The learners demonstrate understanding of the properties of substances that distinguish them from mixtures. Performance Standard: Investigate the properties of mixtures of varying concentrations using available materials in the community for specific purposes. Learning Competency: Distinguish mixtures from substances based on a set of properties. S7MT-Ie-f-4 Unpacked Competency: Identify the Properties of Substance Quarter: 1 Week: 5 Day: 2-3 I. Objectives: At the end of 60 minutes, 100% of the learners are expected to identify the properties of substances II. Content: Subject Matter: Substance Integration: English– students will be using their linguistic intelligence in reporting their results. Strategies: Collaborative approach, experiments, active learning Materials: LED TV Unknown Laptop Water Cartolina Sand Activity Notebook Marker Measuring spoons 4 Watch glass 2 beakers Salt (crystal) Sugar Copper coin References: K-12 Curriculum Guide for Science. Grade 7 Teachers Guide Grade 7 Learners Material http://tiny.cc/9nzn6y http://tiny.cc/tszn6y http://tiny.cc/2uzn6y III. Learning Tasks: ELICIT (Access prior knowledge ) 5 Minutes Materials Power point / Cartolina The teacher will present the following jumbled words and bearing the jumbled words let the students form the correct word. Jumbled words 1. 2. 3. 4. 5. 6. ETANSBUS (SUBSTANCE) TMEELNE (ELEMENT) DMCOPNOU (COMPOUND) TYMIUFNIOR (UNIFORMITY) SESHAP (PHASES) IONTPSIMOCO (COMPOSITION) ENGAGE (Get the students’ minds focused on the topic) 5 Minutes The teacher will show pictures and let students answer the question. 4 Pics One Word 1. What common word describes the 4 pictures? (Substances) Retrieved at: http://tiny.cc/v81n6y http://tiny.cc/9c2n6y http://tiny.cc/5e2n6y http://tiny.cc/ei2n6y Pictures LED TV Laptop EXPLORE (Provide students with a common experience) 12 Minutes Activity Notebook Activity 2: 3 stations Measuring spoons Let the learner group with 5 members. Let them create 3 2 beakers working stations in their designated place and let them conduct Sugar a simple experiment. Water Sand 1st Station Marker Procedure: put equal amounts of water in 2 beakers 4 Watch glass Label the beakers 1 and 2 Salt (crystal) Add ½ tsp of salt in beaker 1 Copper coin Add 1/ 2 tsp of sand in beaker 2. Guide Questions: 1. What happens to the particles of salt in water and sand in water? 2. What is the appearance of salt mixed in water and sand mixed in water? 2nd station Procedure: Label the 2-watch glass with 1 and 2 Put a pinch of sugar in watch glass 1 Put a spoonful of sugar in watch glass 2 Guide Questions: 1. What is the difference between a pinch of sugar in watch glass A and a spoonful of sugar in a watch glass B? 2. Is the sugar changes into another form? 3. What if I will add another pinch of sugar to the watch glass A, Is the sugar changes into another form? 3rd station Procedure: label the watch glass with A and B Put the salt in watch glass A Put the coin in watch glass B Guide Questions: 1. What is the chemical composition of copper coin? 2. What is the chemical composition of salt? 3. What is the difference between the 2? EXPLAIN (Teach the concept. Should include interaction between teacher and students). 15 Minutes Student’s output The teacher will then call a representative in each group to present their outputs. After their presentation, the teacher will ask to the class the following questions: 1. Based from the results of the experiment, do you think sugar is a substance? If yes, then justify your answer. 2. From the given materials (salt, sand, sugar, coin) which of these are substance and why? 3. What is your bases in identifying a substance? Key Concept: The particles of salt mixed with water was dissolved while the particles of sand was just suspended at the bottom. The appearance of salt when mixed in water disappears and will totally dissolve in water resulted to uniform appearance which is said to be homogeneous. Sand when mixed in water will not dissolved. Therefore, Sand mixded in water did not possess uniform appearance, therefore, it is not a homogeneous. The chemical composition of a pure substance is always the same regardless of amount or origin. Sugar will always be sugar regardless of its amount by mass. Copper is one of the elements found in the periodic table which is also known as an element (simplest form of a pure substance and cannot be broken down into simpler substances). Salt is a combination of sodium and chlorine when mixed, known as sodium chloride. A combination of two or more elements is known as compound (combination of two or more elements). Element and compound is one of distinct properties of a pure substance ELABORATE (Students apply the information learned in the Explain. The teacher will give inputs to deepen the understanding of the students) 12 minutes Unknown Let the student group together and let them observe and Beaker investigate an unknown. Let them write their observations in Water their activity notebook and answer the guide questions: Salt Note: The unknown can be a sugar and water solution, salt solution, coffee, milk and others.(salt solution) 1. 2. 3. 4. How many phases is seen in the unknown? Is the appearance of the unknown the same? Does the unknown have the same chemical composition? Is the unknown an element, compound or not a substance? Justify your answer. 5. Is the unknown a substance? State the properties that justify that it is a substance. Key concept: Substance has 3 properties: • it has uniform appearance or it is homogeneous • chemical composition is always the same regardless of the amount or origin • it can be element or compound EVALUATE. 5 minutes 1/2 Crosswise TRUE or FALSE. Write T if the statement is true and F if otherwise. _____1. Pure substance can be further broken down into simplier substance. _____2. Element simplest form of a pure substance and cannot be broken down into simpler substances. _____3. The appearance of salt when mixed in water disappears and will totally dissolve in water resulted to uniform appearance which is said to be homogeneous. _____4. The chemical composition of a pure substance is always not the same regardless of amount or origin. _____5. Element and compound is one of distinct properties of a pure substance. For number 6-8. Please give what is asked. 6-8. Give the three properties of pure substance. For numbers 9-10. What property of pure substance is present when sugar is dissolved in water? And why? EXTEND (Deepen conceptual understanding through use in new context). 6 minutes List 10 substances found in your house and list their properties. Reflection: A. No. of learners achieve 80%: ____ B. No. of learners who require additional activities for remediation: ___ C. Did the remedial lessons work? ___ D. No. of learners who have caught up the lesson: ___ E. No. of learners who continue to require remediation: ___ F. Which of my teaching strategies worked well? Why did these work? ___ G. What difficulties did I encounter which my principal or supervisor help me solve? ___ H. What innovation or localized materials did I used/discover which I wish to share with other teacher? ___ ACTIVITY 4.2 Activity Stations Let the learner group with 5 members. Let them create 3 working stations in their designated place and let them conduct a simple experiment. 1st Station Procedure: put equal amounts of water in 2 beakers Label the beakers 1 and 2 Add ½ tsp of salt in beaker 1 Add 1/ 2 tsp of sand in beaker 2. Questions: 1. What happens to the particles of salt in water and sand in water? ________________ ______________________________________ 2. What is the appearance of salt mixed in water and sand mixed in water? __________ ______________________________________ 2nd station Procedure: Label the 2-watch glass with 1 and 2 Put a pinch of sugar in watch glass 1 Put a spoonful of sugar in watch glass 2 Questions: 3.What is the difference between a pinch of sugar in watch glass A and a spoonful of sugar in a watch glass B? _______________________________________________ 4.Is the sugar changes into another form? ________________________________________ 5.What if I will add another pinch of sugar to the watch glass A, Is the sugar changes into another form? _________________________________________________ 3rd station Procedure: label the watch glass with A and B Put the salt in watch glass A Put the coin in watch glass B Questions: 6.What is the chemical composition of copper coin? _____________________________ __________________________________ 7.What is the chemical composition of salt? ____________________________________ 8.What is the difference between the 2? _______________________________________ Rubric Criteria 3 points 2 points 1 point Presentation/Delivery Group output is presented clearly and confidently Group output is presented not very clear but confidently Group output is presented not clear and not confidently Idea All answers are correct 1 answer is incorrect 2 or more answers are incorrect Team work All members helped in answering the activity 1 member did not help in answering the activity Only 1 member answers the activity Timeliness Activity is done on time Done with the activity 1 minute after the allotted time. Done with the activity 2 or more minutes after the allotted time Total Score Group Score