Bundling tens & ones helps me to add & subtract Level 2 Module 1 Introduction to Place Value: Tens & Ones

© Professor Pete's Classroom. All rights reserved. Index Think Bubble Mathematics: Level 2 Module 1 © Professor Pete's Classroom. All rights reserved.

Think Bubble Math: Level 2 Overview Module 1: 240420_TBM201_Tens_Ones _regrouping.pptx Module 2: 240503_TBM202_Hundreds _introduced.pptx Module 3: 243501_TBM203_Doubling _halving_to_20.pptx Module 4: 240515_TBM204_Hundreds _on_NL.pptx Module 5: 242720_TBM205_Bridging _10_open_NL.pptx © Professor Pete's Classroom. All rights reserved.

Think Bubble Math Worksheets: Many lessons are supported by corresponding worksheets Purchasers: Included in zip file for download Members: Access via profpete.com in TBM section Some lessons recommend that students use hands-on materials 243504_TBM102_WS_Counting_on_back_1_2_3 © Professor Pete's Classroom. All rights reserved.

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Regrouping with Tens and Ones ACMNA027 Recognise, model, represent and order numbers to at least 1000 ACMNA028 Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (c) Professor Pete's Classroom, 2017. All rights reserved.

Assumed Prior Knowledge Students should already: have had lots of practice grouping and ungrouping base ten resources such as Unifix cubes and bundling sticks have counted with base ten materials, grouping and ungrouping ten as they go be able to read and write numbers to 99 based on the materials they see (c) Professor Pete's Classroom, 2017. All rights reserved.

The Value of Ungrouping Tens & Ones 52 Typically, place value activities involve showing numbers of tens and ones up to 9 It is important that students are familiar with bundling 10 ones to make 1 ten fifty-two ones

The Value of Ungrouping Tens & Ones Typically, place value activities involve showing numbers of tens and ones up to 9 It is important that students are familiar with bundling 10 ones to make 1 ten And they are familiar with unbundling all the tens to make many ones 32 thirty-two ones

Ungrouping Tens into Ones Once students are able to group and ungroup all the tens, then it is essential that students experience “non- standard” representations with some ungrouped tens This readies students for more complex mathematics found in the four operations where only one or two of the tens need regouping with others remaining as tens 4 tens and 2 ones 3 tens and 12 ones 46 2 tens and 22 ones 1 ten and 32 ones 42 ones

Accompanying worksheets for Printing Lesson 4 Two worksheets. Duplicate one set per student Lesson 3 Duplicate one per student All three worksheets and answers are in this file 240421_TBM201_Tens_Ones_regrouping_WS (c) Professor Pete's Classroom, 2017. All rights reserved.

Supporting Resources: Resources at profpete.com Gadgets Interactive Software Tens and Ones Regrouped (accompanying worksheet) Tens & Ones Place Value: Template Manipulatives Tens & Ones Place Value: Unifix Tens & Ones Place Value: Bundling Sticks Tens & Ones Place Value: Base Ten Blocks Tens & Ones Place Value: Objects Tens & Ones Place Value: Chart Introduction to Tens and Ones [PowerPoint TBM105] Easy Place Value Gadget: (c) Professor Pete's Classroom, 2017. All rights reserved.

(c) Professor Pete's Classroom, 2017. All rights reserved. Lesson 1: 10 ones make a ten ACMNA027 Recognise, model, represent and order numbers to at least 1000 ACMNA028 Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (c) Professor Pete's Classroom, 2017. All rights reserved.

Many numbers have two parts: tens and ones Ten Ones make One Ten How many groups of ten can you see? How many ones are left? Many numbers have two parts: tens and ones 65 Point out the connections between the number of tens and the digit in the tens place and the ones and the digit in the ones place Have students write the number they see six tens sixty -five five ones

54 fifty-four Ten Ones make One Ten How many tens? How many ones? What number is that? 54 Have students write the number they see Say the number fifty-four

Ten Ones make One Ten How many sticks? 73 seventy-three

One Ten is Ten Ones How many marbles? 98 ninety-eight

Ten and Ones How many cubes? 36 thirty-six

53 ________ ones fifty-three ones One Ten is Ten Ones If we unbundle all the tens, how many ones are there altogether? 53 One ten is ten ones Five tens is fifty ones, then add the single ones ________ ones fifty-three ones

64 ________ ones sixty-four ones One Ten is Ten Ones If we unbundle all the tens, how many ones are there altogether? 64 ________ ones sixty-four ones

16 ______ ones sixteen ones Ten Ones make One Ten If we unbundle the ten, how many ones are there altogether? 16 One ten is ten ones Write the total number of ones ______ ones sixteen ones

(c) Professor Pete's Classroom, 2017. All rights reserved. Lesson 2: 1 ten is 10 ones ACMNA027 Recognise, model, represent and order numbers to at least 1000 ACMNA028 Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (c) Professor Pete's Classroom, 2017. All rights reserved.

A group of ten may be ungrouped into 10 ones One Ten is Ten Ones What number is shown here? If we unbundle all the tens, how many ones are there altogether? A group of ten may be ungrouped into 10 ones 42 One ten is ten ones Write the total number of ones forty-two ones

36 thirty-six ones One Ten is Ten Ones What number is shown here? If we unbundle all the tens, how many ones are there altogether? 36 One ten is ten ones Six tens is sixty ones, then add the single ones thirty-six ones

14 fourteen ones Ten Ones make One Ten What number is shown here? If we unbundle all the tens, how many ones are there altogether? 14 fourteen ones

21 twenty-one ones One Ten is Ten Ones What number is shown here? If we unbundle all the tens, how many ones are there altogether? 21 twenty-one ones

76 seventy-six ones One Ten is Ten Ones What number is shown here? If we unbundle all the tens, how many ones are there altogether? 76 seventy-six ones

Lesson 3: Non-standard representations of tens and ones ACMNA027 Recognise, model, represent and order numbers to at least 1000 ACMNA028 Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (c) Professor Pete's Classroom, 2017. All rights reserved.

Grouping Tens into Ones What number is shown here? How many tens, how many ones? We can group another set of ten Now what number is shown? We need to see numbers in different arrangements 1 ten and 16 ones 26 This is a non-standard way of showing tens and ones Recognising this sort of arrangement is an essential prerequisite to addition and subtraction with regrouping twenty-six

Grouping Tens into Ones What number is shown here? How many tens, how many ones? We can group another two sets of ten What number is shown? 1 ten and 25 ones 35 Have students count the sticks shown on screen Write the answers thirty-five

Grouping Tens into Ones What number is shown here? 68 Have students count the blocks shown on screen Write the answers 3 38 __ tens and __ ones

Grouping Tens into Ones What number is shown here? 42 2 22 __ tens and __ ones

Grouping Tens into Ones What number is shown here? 54 4 14 __ tens and __ ones

Grouping Tens into Ones What number is shown here? 73 5 23 __ tens and __ ones

Grouping Tens into Ones What number is shown here? A 6 tens and 9 ones 96 B 9 tens and 16 ones C 8 tens and 16 ones Ask students to match the red numeral to the correct number of tens and ones

Grouping Tens into Ones What number is shown here? A 4 tens and 29 ones 49 B 2 tens and 29 ones C 9 tens and 4 ones

Lesson 4: ungrouping tens into ones ACMNA027 Recognise, model, represent and order numbers to at least 1000 ACMNA028 Group, partition and rearrange collections up to 1000 in hundreds, tens and ones to facilitate more efficient counting (c) Professor Pete's Classroom, 2017. All rights reserved.

Ungrouping Tens into Ones What number is shown here? If we unbundle one ten, what will we see? If we unbundle another ten, what will we see then? If we unbundle all the tens, what will we see? 3 tens and 4 ones We can see numbers in different arrangements 2 tens and 14 ones 34 This is a non-standard way of showing tens and ones Recognising this sort of arrangement is an essential prerequisite to addition and subtraction with regrouping 1 ten and 24 ones 34 ones

Ungrouping Tens into Ones What number is shown here? If we unbundle one ten, what will we see? If we unbundle all the tens, what will we see? 2 tens and 7 ones 27 Have students write the numbers of tens and ones as each ten is unbundled Point out that the number of sticks remains the same in each arrangement 1 ten and 17 ones 27 ones

Ungrouping Tens into Ones What number is shown here? Write what is shown as each ten is ungrouped 4 tens and 6 ones 3 tens and 16 ones 46 2 tens and 26 ones 1 ten and 36 ones 46 ones

Ungrouping Tens into Ones What number is shown here? If we unbundle one ten, what will we see? If we unbundle another ten, what will we see then? Then the next… and the next…? 5 tens and 5 ones 4 tens and 15 ones 3 tens and 25 ones This is a non-standard way of showing tens and ones Recognising this sort of arrangement is an essential prerequisite to addition and subtraction with regrouping 55 2 tens and 35 ones 1 ten and 45 ones 55 ones

Grouping Tens into Ones Match this numeral with a number of tens and ones A 1 ten and 16 ones 16 B 0 tens and 16 ones C 0 tens and 61 ones Ask students the number described in each option A, B and C

Grouping Tens into Ones Match this numeral with a number of tens and ones A 5 tens and 41 ones 91 B 1 ten and 9 ones C 9 tens and 11 ones

Grouping Tens into Ones Match this numeral with a number of tens and ones A 4 tens and 42 ones 72 B 2 tens and 7 ones C 5 tens and 22 ones

Grouping Tens into Ones Match this numeral with a number of tens and ones There may be more than one! A 4 tens and 29 ones 69 B 3 tens and 39 ones C 5 tens and 19 ones