Year 4 Decimals Recognise Tenths And Hundredths Classroom

Year 4 –Decimals Recognise Tenths And Hundredths © Classroom Secrets Limited Slide 1

Introduction What fraction of each shape has been shaded? These are similar to the Dienes that we use in school. What type of Dienes are these – which one is the 10; Which one is the 100? (On the left is the 10 and on the right is the 100. ) How many of the 10 dienes are coloured blue? How many 10 dienes are there in total? How would this look as a fraction? How many of the 100 dienes are coloured green? How many 100 dienes are there in total? How would this look as a fraction? Numerator-how many parts are coloured. Denominator-the total number of parts (dienes). © Classroom Secrets Limited Slide 2

Introduction What fraction of each shape has been shaded? 1 10 0 © Classroom Secrets Limited 1 10 0 0 Slide 3

Varied Fluency 1 Complete the statement and shade the hundred square to match. 47 hundredths can be partitioned into ___ tenths and ___ hundredths. Before you answer think about the following – • How many of the hundredths squares do you need to make up ONE tenth? • How many tenths are there in the number 47? Once you have answered this you will know how many squares to colour in. • How many hundredths are there? © Classroom Secrets Limited Slide 4

Varied Fluency 1 Complete the statement and shade the hundred square to match. 47 hundredths can be partitioned into 4 tenths and 7 hundredths. © Classroom Secrets Limited Slide 5

Varied Fluency 2 Fill in the missing numbers to complete the part-whole model. 76 10 0 0 How many tenths are there? (the numerator) How many parts are there in total? 6 10 The answer for this Part-Whole model are found on this page. © Classroom Secrets Limited Slide 6

Varied Fluency 2 Fill in the missing numbers to complete the part-whole model. 76 10 0 0 7 10 © Classroom Secrets Limited 6 10 0 Slide 7

Varied Fluency 3 Partition the following numbers into tenths and hundredths. A. B. © Classroom Secrets Limited 59 10 0 0 16 10 0 0 = = 10 10 and 100 Slide 8

Varied Fluency 3 Partition the following numbers into tenths and hundredths. A. B. © Classroom Secrets Limited 59 10 0 0 16 10 0 0 = = 5 10 1 10 and 9 100 6 100 Slide 9

Varied Fluency 4 Complete the part whole models below. 8 10 © Classroom Secrets Limited 10 10 0 5 10 20 10 0 Slide 10

Varied Fluency 4 Complete the part whole models below. 90 10 0 8 10 © Classroom Secrets Limited 70 10 10 0 5 10 20 10 0 Slide 11

Reasoning 1 Freddie has completed the bar model to represent 5 tenths and 1 hundredth. 5 10 51 10 0 Explain the mistake Freddie has made. © Classroom Secrets Limited Slide 12

Reasoning 1 Freddie has completed the bar model to represent 5 tenths and 1 hundredth. 5 10 51 10 0 Explain the mistake Freddie has made. Freddie is incorrect because… © Classroom Secrets Limited Slide 13

Reasoning 1 Freddie has completed the bar model to represent 5 tenths and 1 hundredth. 5 10 51 10 0 Explain the mistake Freddie has made. Freddie is incorrect because he has partitioned the number into 5 tenths and 51 hundredths, rather than 5 tenths and 1 hundredth. © Classroom Secrets Limited Slide 14

Reasoning 2 Jaxon has represented 16 hundredths in two different ways. 16 10 1 0 10 16 10 0 Is he correct? Explain your answer. © Classroom Secrets Limited Slide 15

Reasoning 2 Jaxon has represented 16 hundredths in two different ways. 16 10 1 0 10 16 10 0 Is he correct? Explain your answer. Jaxon is incorrect because… © Classroom Secrets Limited Slide 16

Reasoning 2 Jaxon has represented 16 hundredths in two different ways. 16 10 1 0 10 16 10 0 Is he correct? Explain your answer. Jaxon is incorrect because the part-whole model does not show 1 the correct number of tenths. It should say instead. 10 © Classroom Secrets Limited Slide 17