LESSON PLAN School : SMP N 1 Petanahan Subject : Mathematics Grade/Semester : 7th / I Subject Matter : Integer Learning Goal : Students can doing arithmetic operation in integer Student can find the properties of operation in integer Students can solve the problems related to arithmetic operation in integer Duration : 80 minutes Based Competencies : 3.2 Explaining and doing arithmetic operation in integer and fraction using various properties of operation 4.2 Solving problems related with arithmetic operation in integer and fraction. Mode : Online 1. Preliminary activity Main Activity Mathematical Learning Goal Conjectured of students’ Thinking Teacher’s reaction Teacher opens the lesson by greeting the students and checking the students’ readiness Teacher explores the prior knowledge by asking the student about number Students have the prior knowledge of number and numbers operation Student know about number and represent the number of object with integer Teacher motivates the students and asking how about positif and negative numbers Students don’t know about integer Teacher recall students ability in daily life case like money Hook: Teacher and students review prior lessons which are important for the new topic. Integer consist of positive number, zero, and negative numbers. Operation in numbers are addition, Students recall their understanding to find out the concept of integer and operation of integer Students know the concept Teacher asks the student to tell to other what they have known about integer and operation of integer in real life problem substraction , multiplication and division Students don’t know the concept Teacher gives some questions, so the student would be found the concept of operation in integer 2. Main activity Going to GeoGebra classroom Students access and explore activities in the GeoGebra classroom. Student can do some activities in GeoGebra classroom Teacher motivates the students and asks the students to share their activities Student difficult to do some activities in GeoGebra classroom Teacher helps students and motivates the students, make longer time to them and check whether there is a technical problem such as internet connection or device problem. Understanding the problems 1. Student doing the exercise in activity 1 and 2. Teacher tells the student about the problem, Activities 1: student can do addition with positive integer Activities 2: student can do addition with negative number Students ask the teacher about how to move the slider to change the number The teacher motivates the student and tell how to change the number by sliding the red point and blue point Student can explore and move the slider into the number in the activities and get the right answer Teacher motivates the student and ask them to share how they can do the activities to others Doing the problem Activities 3 : Student can make generalization of addition two positive number and two negative number Students make a wrong answer Teacher motivates student and ask student to check the number line and check the answer of activities 1 and 2 Students get the correct answer Teacher gives positive feedback and let them share their idea Activities 4 and 5: student can do addition negative number with positive number Students can find the same result of activities 4 and 5 Teacher motivates student and let them share the relation between activities 4 and 5 Students cannot find the same result of activities 4 and 5 Teacher motivates the student and recall the result in activities 4 and 5 Activities 6 : Student can make generalization of addition two positive number and two negative number Students get the point of commutative properties in addition Teacher give positive feedback and let them share their insight with their answer Students do not get the point of commutative properties in addition Teacher motivates students and asks students to make a correlation between activities 4 and 5 Activities 7,8,9,10 and 11 : Students can do substraction in integer and find the properties of substraction Students get the right answer Teacher gives positive feedback and let them share their idea that the propertis od substraction is not commutative, the sunstraction of number with negative number can make the substraction becoming addition. Students get the wrong answer Teacher motivates the students and recall their result in activities 7 and 8, do they get the same result ? in activities 8,9,10 and 11 they can make other simulation to get the point of substraction properties Activities 12,13,14,15 and 16 : Students can do multiplication in integer and find the properties of multiplication Students make a wrong answer and did not find the concept of commutative in multiplication Teacher motivates student and ask student to check the number line and check the answer of activities 12,13,14, and 15 Students get the correct answer and find the concept of commutative in multiplication Teacher gives positive feedback and let them share their idea Activities 17,18,19 and 20 : Students can do division in integer and find the properties of division in positive and negative numbers Students make a wrong answer Teacher motivates student and ask student to check the number line and check the answer of activities 17,18, Teacher gives feedback of wrong conclusion in activities 19 and 20 and motivates them to recall their understanding Students get the correct answer Teacher gives positive feedback and let them share their idea 3.Closing activity Making Conclusion Teacher ask the student to share their insight from all activities of the properties operation in integer Students get the right conclusion Teacher gives positive feedback and let them share their idea to others Students get the wrong conclusion Teacher motivates the students to recall their understanding about comutative in addition and multiplication. Mengetahui, Kepala SMP N 1 Petanahan Drs. Supriyatin Nur Widayat NIP. 196812071999031003 Petanahan, 26 Juli 2020 Guru Mapel Sanni Merdekawati,S.Pd NIP. - RUBRIC ASSESMENT Assesment Technique : Student Worksheet Instrument : Essay and Multiple choice Base Competencies : 3.2 Explaining and doing arithmetic operation in integer and fraction using various properties of operation 4.2 Solving problems related with arithmetic operation in integer and fraction. NO Assesment aspect Score Assessment Rubric 1 Knowing concept of addition in line number 0 Students don’t join the activity in GeoGebra classroom 2 1 Students can’t do the activity in GeoGebra classroom. Their answer doesnot related to the concept of addition in line number 3 2 Students able to do the activities but get the wrong answer 4 3 Students able to do the activities but can’t explain their idea 5 4 Students able to do the activities , answer the task correctly and explain their idea about the concept of addition 6 Generalizing / making conclusion about the concept of addition and properties of commutative 0 Students don’t join the activity in GeoGebra classroom 1 Students can’t do the activity in GeoGebra classroom. Their answer doesnot related to the concept of addition in line number 2 Students able to make summary of activities before 3 Students able to share their idea about the properties of addition 4 Students able to share their idea about the commutative properties in addition 7 Knowing concept of substraction in line number 0 Students don’t join the activity in GeoGebra classroom 8 1 Students can’t do the activity in GeoGebra classroom. Their answer doesnot related to the concept of substraction in line number 9 2 Students able to do the activities but get the wrong answer 3 Students able to do the activities but can’t explain their idea 4 Students able to do the activities , answer the task correctly and explain their idea about the concept of substraction in line number 10 Generalizing / making conclusion about the concept of substraction in line number 0 Students don’t join the activity in GeoGebra classroom 11 1 Students choice the wrong answer 2 Students able to share their idea about their answer but still make wrong choices 3 Students can do the activity in GeoGebra classroom. Their answer is right 4 Students able to share their idea about their choices and get the right answer 12 Knowing concept of multiplication in line number 0 Students don’t join the activity in GeoGebra classroom 13 1 Students can’t do the activity in GeoGebra classroom. Their answer doesnot related to the concept of multiplication in line number 14 2 Students able to do the activities but get the wrong answer 15 3 Students able to do the activities but can’t explain their idea 4 Students able to do the activities , answer the task correctly and explain their idea about the concept of multiplication 16 Generalizing / making conclusion about the concept of multiplication in line number 0 Students don’t join the activity in GeoGebra classroom 1 Students choice the wrong answer 2 Students able to share their idea about their answer but still make wrong choices 3 Students can do the activity in GeoGebra classroom. Their answer is right 4 Students able to share their idea about their choices and get the right answer 17 Generalizing / making conclusion about the concept of multiplication in line number 0 Students don’t join the activity in GeoGebra classroom 18 1 Students choice the wrong answer 19 2 Students able to share their idea about their answer but still make wrong choices 20 3 Students can do the activity in GeoGebra classroom. Their answer is right 4 Students able to share their idea about their choices and get the right answer STUDENT’S WORKSHEET “OPERATION OF INTEGER” Learning Goal : • Students can doing arithmetic operation in integer • Student can find the properties of operation in integer • Students can solve the problems related to arithmetic operation in integer This link to geogebra classroom: https://www.geogebra.org/classroom/tw82hm7z Screenshot of activities https://www.geogebra.org/classroom/tw82hm7z