WORKING WITH DECIMALS
In this informative piece by Charlotte Gustar from the British Army Education Centre in Germany, the focus is on working with decimals. The content covers concepts related to decimal numbers and their application, providing valuable insights for readers interested in sharpening their skills in this area. The details shared are beneficial for those aiming to enhance their understanding and proficiency in working with decimals, making it a valuable resource for learners seeking practical guidance on this topic.
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Description: swlogo WORKING WITH DECIMALS September 2011. Kindly contributed by Charlotte Gustar, British Army Education Centre, Germany Search for Charlotte on www.skillsworkshop.org This PPT accompanies a lesson plan, a knowledge checker (both written by Charlotte), and two separate worksheets (beauty salon or garage, both written by Carrie Bray). All are available on skillsworkshop. Please also see the notes under many of the slides for additional teaching ideas. Parts of this PPT are adapted, with thanks, from: Slides 6-7, Multiplying and dividing by 10 and 100 (Elaine Baskerville) http://www.skillsworkshop.org/resources/multiplying-and-dividing-10-and-100 Slides 8-9, Pounds to pence (Jennifer Williamson) http://www.skillsworkshop.org/resources/pounds-pence Curriculum links This PPT covers several aspects of Functional Maths including: E3: Understand decimals to two decimal places in practical contexts L1: Add and subtract decimals up to two decimal places Please refer to the resource description page on skillsworkshop.org for detailed curriculum links and related resources.
Coming up... . Get the point?! Complete your knowledge checker now before we start. 2
Decimals You see them all around For instance in money!... Can you think of any more examples? In pairs: List as many examples of using decimals as possible and feed back to the group. You have 2 minutes! 3
DECIMALS DECIMALS 4
PLACE VALUE Hundreds 100s Tens 10s Units 1s . Tenths 10ths Hundredths 100ths Thousandths 1000ths 1 4 . 1 3 7 . 5 0 9 5
Multiply by 10 move the digits one place to the left _1_ 10 Tenths 4 _1_ 100 _1_ 1000 Thousandths . Tens Units Hundreds Hundredths 5 . 3 7 0 1 5 . . 8 Multiply by 100 move the digits two places to the left _1_ 10 Tenths 7 _1_ 100 _1_ 1000 Thousandths . Tens Units Hundreds Hundredths 6 . 0 2 8 0 0 0 3 . .
Divide by 10 move the digits one place to the right _1_ 10 Tenths 4 _1_ 100 _1_ 1000 Thousandths . Tens Units Hundreds Hundredths 5 0 . 7 0 3 1 5 . . 8 0 Divide by 100 move the digits two places to the right _1_ 10 Tenths 7 0 _1_ 100 _1_ 1000 Thousandths . Tens Units Hundreds Hundredths . 0 2 5 0 0 . . 8 9
Pounds to Pence Conversion quiz Remember! 100p = 1 1p = 0.01
Convert the following amounts from pounds to pence: 5 = 500p 1.99 = 199p 89.65= 8965p 2.50 = 250p 0.70 = 70p 22.09 = 2209p 3.75 = 375p 6.07 = 607p 46.33 = 4633p
ADDITION LINE UP DECIMAL POINTS EXACTLY Then do the addition E.g. 2.34 + 18.034 10
SUBTRACTION LINE UP DECIMAL POINTS EXACTLY Then do the subtraction 234 3.56 11
When are you going to use these skills? Personal finances: Budgeting Bank account Job: Cash floats / tills Ordering parts / expenses 12
Activity Today you are on the reception desk, to get experience in this area of your new work place. You will have to deal with money and customers... Use the hand-out to complete the jobs. Good luck! You have 20 minutes. 13
To sum up... Re-visit your Subject knowledge checker from the start of the lesson. Difficult Not sure Think so OK Lesson Objectives To discuss the use of a decimals in daily life To demonstrate + & - skills with decimals Identify how to multiply decimals by 10,100 using mental arithmetic To improve simple maths by using money Summary of session and review. I enjoyed I didn t like... I need to improve.... 14
