Number

Learning Outcome: Students interpret and explain quantity to 100.

Knowledge

A numeral is a symbol or group of symbols used to represent a number.

The absence of quantity is represented by 0.

Understanding

Quantity is expressed in words and numerals based on patterns.

Quantity in the world is represented in multiple ways.

Skills & Procedures

Represent quantities using words, numerals, objects, or pictures.

Identify a quantity of 0 in familiar situations.

Knowledge

Counting can begin at any number.

Counting more than one object at a time is called skip counting.

Understanding

Each number counted includes all previous numbers (counting principle: hierarchical inclusion).

A quantity can be determined by counting more than one object in a set at a time.

Skills & Procedures

Count within 100, forward by 1s, starting at any number, according to the counting principles.

Count backward from 20 to 0 by 1s.

Skip count to 100, forward by 5s and 10s, starting at 0.

Skip count to 20, forward by 2s, starting at 0.