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NAME: _____________________________________________________ CLASS: VII (SEVENTH) SECTION : B ROLL NO. _____________ SCHOOL: KENDRIYA VIDYALAYA GACHIBOWLI, GPRA CAMPUS, HYD – 32 Subject : Mathematics Level B1 Class – VII Lesson: 1 (Integers) Skill/Competency Target Learning Suggested Strategies /Concept Outcomes Computational Skill Understanding and use of Individual task Properties of Addition Properties of Addition and Group task and subtraction of subtraction of integers Maths Lab Activity integers Understanding and use of Crossword puzzle Multiplication and Multiplication of two Oral test based on division Operation on integers with same and Mental math integer. opposite signs. Properties of Understanding and use of Multiplication and Properties of Division of integers Multiplication of integers Word problem solving Understanding and use of Division of two integers with same and opposite signs. Understanding and use of Properties of Division of integers. Word problem solving. Activity – I TLO: Addition and Subtraction of two integers with same and opposite signs. Addition and Subtraction of Integers Activity Overview In this activity, students investigate how addition or subtraction of integers is done using number line. Use the number line for adding and subtracting integers: Add a positive integer by moving to the right on the number line Add a negative integer by moving to the left on the number line Subtract an integer by adding its opposite ADDITION Prepared by: M. S. KumarSwamy, TGT(Maths) Page - 1 - SUBTRACTION Activity – II TLO: Multiplication of two integers with same and opposite signs. Multiplication of Integers--Repeated Addition and Subtraction Activity Overview In this activity, students investigate how repeated addition or subtraction is related to multiplication. Use number line to multiply integers Add a positive integer 2, 3 times (2 + 2 + 2) and observe the distance moved towards right side on the number line Observe this is the same as four times the integer (2 x 3) Similarly, add a negative integer three times 0 + (-2) + (-2) + (-2), this is the same as 3x - 2 Compute (0 - 2 - 2 - 2) and notice that this is equivalent to - 3 x 2 Compute 0 –(-2)– (-2)–(-2) and observe this is equivalent to - 3 x - 2 Examples:2 x 3 = 6 Multiplying is really just showing repeated adding. So, we need to add 2 three times. 2 + 2 + 2 = 6 Examples:-2 x 3 = -6 This one is asking us to add -2 three times. That means that we would have -2 + -2 + -2 = -6. Prepared by: M. S. KumarSwamy, TGT(Maths) Page - - 2 Examples:-2 x -3 = 6 This example says that we should add -2 negative 3 times. The negative symbol as means "the opposite". So if we are going to add - 2 the opposite of 3 times, we will move in the opposite direction on the number line. We had moved to the left, so now we move to the right. Activity – III TLO: Division of two integers with same and opposite signs. Division of Integers--Repeated Subtraction Activity Overview In this activity, students investigate how repeated addition or subtraction is related to Division. Use number line to divide integers Divide 14 by 7 7 is subtracted repeatedly from 14 using the number line When 7 is subtracted 2 times from 14 in the number line, then we get the remainder zero. Thus, 7 is subtracted from 14, 2 times. Hence, 14 ÷ 7 = 2, 2 is the quotient. Prepared by: M. S. KumarSwamy, TGT(Maths) Page - - 3
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