Unit Plan
Exploring 2Digit Place Value Unit Plan
This mathematics unit addresses a range of 2digit place value number concepts involving identifying, sequencing, and representing.
It consists of 10 lessons of approximately 60 minutes duration.
The sequence of lessons and suggested time frames should be regarded as a guide only; teachers should pace lessons in accordance with the individual learning needs of their class.
An assessment task for monitoring student understanding of the unit objectives is included and will require an additional lesson.
Overview
Objectives
 To identify and order the numbers from 0 to 120.
 To sequence the numbers from 0 to 100.
 To introduce skip counting by 2s, 5s, and 10s.
 To explore skip counting by 2s.
 To explore skip counting by 5s.
 To explore skip counting by 10s.
 To understand that 2digit numbers are made up of tens and ones.
 To understand how 2digit numbers can be decomposed.
 To identify the basic features of a number line.
 To understand how numbers are placed on a number line.
Preparing for Learning
Prior to starting the unit, develop a number display in the classroom. Display posters, word wall vocabulary, and learning goals that the students will engage with throughout the unit to stimulate their learning. For examples of such resources, browse the Place Value category on the Teach Starter website.
There are many concepts to address when introducing 2digit place value to younger students. The lessons in this unit cover a range of these concepts, many of which have varying degrees of complexity. Teachers are encouraged to select lessons from the unit that best suit the learning needs of their students, or to adapt lessons accordingly.
Some of the resources which accompany this unit plan will need to be prepared prior to teaching. For this reason, it is advised that teachers browse through all lessons before beginning the unit.
Lessons
Resources
Common Core State Standards alignment

CCSS.MATH.CONTENT.1.NBT.A.1
Count to 120, starting at any number less than 120. In this range, read and write numerals and represent a number of objects with a written numeral....

CCSS.MATH.CONTENT.1.NBT.B.2
Understand that the two digits of a twodigit number represent amounts of tens and ones. Understand the following as special cases:...
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