Unit 5: Understanding Place Values
In this unit, students will:
• understand the order of the counting numbers
• use a number line and 99 chart to build understanding of numbers and their relation to other numbers
• unitize a group of ten ones as a whole unit: a ten, and understand that a group of ten pennies is equivalent to a dime.
• compose and decompose numbers from 11 to 19 into ten ones and some further ones
• think of whole numbers between 10 and 100 in terms of tens and ones
• explore the idea that decade numbers are groups of tens with no left over ones
• compare two numbers by examining the amount of tens and ones in each number using words, models and symbols greater than (>), less than (<) and equal to (=)
• create concrete models, drawings and place value strategies to add and subtract within 100
• use place value understanding and properties of operations to add and subtract
• mentally add ten more and ten less than any number less than 100
• work with categorical data by organizing, representing and interpreting data using charts and tables
• pose questions with 3 possible responses and then work with the data collected
• understand the order of the counting numbers
• use a number line and 99 chart to build understanding of numbers and their relation to other numbers
• unitize a group of ten ones as a whole unit: a ten, and understand that a group of ten pennies is equivalent to a dime.
• compose and decompose numbers from 11 to 19 into ten ones and some further ones
• think of whole numbers between 10 and 100 in terms of tens and ones
• explore the idea that decade numbers are groups of tens with no left over ones
• compare two numbers by examining the amount of tens and ones in each number using words, models and symbols greater than (>), less than (<) and equal to (=)
• create concrete models, drawings and place value strategies to add and subtract within 100
• use place value understanding and properties of operations to add and subtract
• mentally add ten more and ten less than any number less than 100
• work with categorical data by organizing, representing and interpreting data using charts and tables
• pose questions with 3 possible responses and then work with the data collected