Approximation & Estimation Rounding Numbers Week 3 - Grade 6 Day 1 Rounding Learning Outcomes Date: 24th August, 2020 Monday By the end of the session students should be able to: ● Recall place value of real numbers up to the given degree of accuracy ● Round the given numbers according to the given degree of accuracy ● Solve the given questions using estimation and rounding Previous Video Key Points Date: 24th August, 2020 Monday Note: Share this video link in the google classroom as homework for the weekend to watch and take notes according to their understanding https://www.youtube.com/watch?v=fd-E18EqSVk Ask students to share the key points they understood about rounding after watching the video before coming to class Date: 24th August, 2020 Monday Watch Video Watch the video and discuss the important points with the class and answer questions to clarify students’ concept https://www.youtube.com/watch?v=XnJw2wq930U Date: 24th August, 2020 Monday Practise Now Attempt the Practise Now Questions on page 60 and 61 in your copy Reference Book:New Syllabus Mathematics 7th Ed. (D1) Exit Ticket Date: 24th August, 2020 Monday Day 2 Rounding Learning Outcomes Date: 25th August, 2020 Tuesday By the end of the session students should be able to: ● Recall place value of real numbers up to the given degree of accuracy ● Round the given numbers according to the given degree of accuracy ● Solve the given questions using estimation and rounding Rounding Date: 25th August, 2020 Tuesday A rounded number has about the same value as the number you start with, but it is less exact. For example, 341 rounded to the nearest hundred is 300. That is because 341 is closer in value to 300 than to 400. When rounding off to the nearest dollar, $1.89 becomes $2.00, because $1.89 is closer to $2.00 than to $1.00 Rules for Rounding Date: 25th August, 2020 Tuesday Here's the general rule for rounding: ➢ If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40 ➢ If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 33 rounded to the nearest ten is 30 What Are You Rounding to? Date: 25th August, 2020 Tuesday When rounding a number, you first need to ask: what are you rounding it to? Numbers can be rounded to the nearest ten, the nearest hundred, the nearest thousand, and so on. Consider the number 4,827. ● ● ● 4,827 rounded to the nearest ten is 4,830 4,827 rounded to the nearest hundred is 4,800 4,827 rounded to the nearest thousand is 5,000 All the numbers to the right of the place you are rounding to become zeros. Here are some more examples: ● ● ● 34 rounded to the nearest ten is 30 6,809 rounded to the nearest hundred is 6,800 1,951 rounded to the nearest thousand is 2,000 Class Work Date: 25th August, 2020 Tuesday Attempt Questions of “Practise Now” on page 61 in your copy Solve Q1, Q.2 on page 62 of Exercise 3A in your copy Reference Book:New Syllabus Mathematics 7th Ed. (D1) Home Work Date: 25th August, 2020 Tuesday Solve Q.3 & Q.4 of Exercise 3A on page 62 in your copy Reference Book:New Syllabus Mathematics 7th Ed. (D1) Plenary- Exit Ticket Date: 25th August, 2020 Tuesday Exit Ticket Ask students to answer the question shared, on a sticky note, and paste it in their copy Round the given numbers to the nearest 100: 1. 768410 2. 35490 Round the given numbers to the nearest 1000: 1. 548910 2. 491257 Round the given numbers to the nearest 10,000: 1. 32908176 2. 87192305 Day 3 Rounding Significant Figures Learning Outcomes Date: 26th August, 2020 Wednesday By the end of the session students should be able to: ● Recall place value of real numbers up to the given degree of accuracy ● Round the given numbers according to the given degree of significance ● Solve the given questions using estimation and rounding Date: 26th August, 2020 Wednesday Rounding Significiant Figures Reference Book: New Syllabus Mathematics 7th Ed. (D1) Page no. 64-65 5 Rules to Identify Digits which are Significant 1. 2. 3. 4. 5. All non-zero digits are significant. All zeros between non - zero digits are significant In a decimal, all zeros after non - zero digit are significant. In a decimal, all zeros before non - zero digit are not significant. In whole numbers, the zeros at the end may or may not be significant. It depends on how the numbers are approximated. Day 4 Rounding Significant Figures Learning Outcomes Date: 27th August, 2020 Thursday By the end of the session students should be able to: ● Recall place value of real numbers up to the given degree of accuracy ● Round the given numbers according to the given degree of significance ● Solve the given questions using estimation and rounding Date: 27th August, 2020 Thursday Watch Video Watch the video and discuss the important points with the class and answer questions to clarify students’ concept https://www.youtube.com/watch?v=8Rkz4UuFS_k&t=89s Class Work Date: 27th August, 2020 Thursday Attempt Practise Now 4 on page 66 in your copy Solve Q. 1, Q.2 and Q.3 of Ex. 3B on page 70 in your copy Reference Book: New Syllabus Mathematics 7th Ed. (D1) Home Work Date: 27th August, 2020 Thursday Solve Q. 1, Q.4 and Q.6 of Ex. 3C on page 76 in your copy Reference Book: New Syllabus Mathematics 7th Ed. (D1) Date: 27th August, 2020 Thursday Exit Ticket Answer the questions of Exit ticket on Google Form shared in Google Classroom before leaving the class Day 5 Rounding- Reinforcement Learning Outcomes Date: 28th August, 2020 Friday By the end of the session students should be able to: ● Recall place value of real numbers up to the given degree of accuracy ● Round the given numbers according to the given degree of accuracy ● Round the given numbers according to the given degree of significance ● Solve the given questions using estimation and rounding Practice Link Date: 26th August, 2020 Wednesday Rounding Whole Numbers: https://quizizz.com/admin/quiz/5d34627cb3eee4001dc893dd/practice-testrounding-off-numbers Rounding Significant Figures: https://quizizz.com/admin/quiz/57f67a42f70e1da63b50abec/significant-figures https://www.quia.com/quiz/864935.html?AP_rand=1634393749 https://www.proprofs.com/quiz-school/story.php?title=significant-digits-rounding https://www.transum.org/software/SW/Starter_of_the_day/Students/Rounding.asp Note: you can explore the quizzes whichever you think suits your class, ask them to attempt that Class Discussion Date: 28th August, 2020 Friday Discuss students’ problems related to Rounding Whole numbers and Significant figures Date: 28th August, 2020 Friday Exit Ticket Self Assessment Questionnaire to be filled by the students individually to assess their own understanding of the topic “Rounding”
