Teachers, save “What I know about 2-digit numbers” to assign it to your class.

How do you use place value to read and write numbers? 1. 2. Make a 2-digit number using unifix blocks 3. Take a of your blocks 4. Use to: - write the number as numerals - record how many tens and ones are in your number - write your number in written form - write your number in expanded form 5. to add to your learning journal 6. *optional: use to read your number and to tell an interesting fact about your number eg Is it odd or even? How do you know? How close is your number to 100? or 50? Central idea: Numbers are used for many purposes in our world. Key concepts: Form, Function, Connection Learner Profile: Principled, Thinker Approaches to learning: Thinking skills