Decimals Today you will need …… Orange Books Calculator Pen Ruler Week 8 Today you will need …… Orange Books Calculator Pen Ruler Complete your tracking sheet to evaluate your skills before the lesson

What you need to know E3 –L2 Understand that the decimal point separates pounds and pence, or m and cm Understand the use of zero as a place holder, e.g. £1.05 is £1 and 5p Understand the use of a leading zero, e.g. 35p = £0.35; 0.5 m = 50 cm Recognise .5 as a half, e.g. 2.5 m as 21/2 Know how to key in and interpret money calculations e.g. key in 85p as 0.85, interpret 8.2 as £8.20 Understand that a calculator will sometimes display a string of digits after the decimal point, and that it is only necessary (at this level) to read the first two, e.g. 1.33333333 is £1.33 Know how to align decimal points and figures in column addition and subtraction Know how to enter sums of money in a calculator Recognise when to round up to the nearest £, e.g. £1.99 is approximately £2 Understand that the position of a digit signifies its value Know that the decimal point separates whole numbers from decimal fractions Know what each digit represents, including the use of zero as a place holder Know and use strategies to check answers e.g. approximate calculations using whole numbers Understand place value for whole numbers and to two-decimal places Know what is meant by decimal places Understand place value of whole numbers and decimals Know that, for column addition and subtraction, decimals should be aligned by the decimal point Understand place value for whole numbers and up to three decimal places Understand that decimals can be rounded to different degrees of accuracy, depending on the purpose Know and use strategies to check answers, e.g. approximate calculations using whole numbers Understand that exchange rates of currencies are not fixed, but vary on a daily basis Understand buying rate and selling rate

Decimal places, ascending, descending, estimate What will you learn today? (something you did not know yesterday) By the end of this session I will be able to… Order decimals Calculate with decimals Round numbers to a set number of decimal places Check calculations Scenario style questioning Decimal places, ascending, descending, estimate Key Words

Skills Demonstration – ordering decimals 3.333, 3.11, 3.01, 3.001, 3.301 3.333, 3.301, 3.11, 3.01, 3.001

Skills Demonstration – rounding decimals Round the following to the nearest whole number (a) 1.35 ……………………………………… (b) 3.64 ……………………………………… (c) 10.50 ……………………………………… Round the following to 1 decimal place (1dp) (a) 1.35 ……………………………………… (c) 10.50 ……………………………………… 1 4 11 1.4 3.6 10.5

Calculation Checks

Individual Study – calculating with decimals Calculate the individual cost of 17 items. Reverse check Calculate total cost of fundraising

Please don’t write on the worksheets Individual Study Choose which areas to develop depending on your own strengths and areas identified from your diagnostic Computers available Please don’t write on the worksheets

Reflection of the lesson What did you learn new today? Why did you learn it? How are you going to remember it?