#### Unit Plan

# Exploring 2-Digit Place Value Unit Plan

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**1**

This Mathematics unit addresses a range of 2-digit 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 100.
- 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 2-digit numbers are made up of tens and ones.
- To understand how 2-digit numbers can be partitioned.
- To identify the basic features of a number line.
- To understand how numbers are placed on a number line.

### Preparing for Learning

Prior to commencing the unit, develop a numbers 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 2-digit 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 commencing the unit.

## Lessons

## Resources

#### Common Core State Standards alignment

- Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Extend the counting sequence >
**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....

- Grade 1 > Standards for Mathematical Practice > Number & Operations in Base Ten > Understand place value >
**CCSS.MATH.CONTENT.1.NBT.B.2**Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases:...

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