Know the difference between a digit and a number <100

General

Students learn the difference between digits (digits 0-9) and numbers (that is made of 1 or more digits).

Common core standard(s)

K.CC.A.3

Relevance

It is important to know the difference between a digit and a number so you know how to put numbers together.

Introduction

Ask students if they have a favorite number. Ask students to pick from 0-9 and discuss why this is their favorite number.

Development

Ask the students what 1 and 1 is. The joke is that when you put 1 and 1 close together, you get 11. Next explain to the students that digits are the symbols 0-9 and you use them to make numbers. Following this, explain that the digits are the symbols 0-9 and numbers are put together using digits, show the page with the digits. Discuss that a telephone has all the digits, and that is useful to be able to put the digits of a telephone number into numbers. Ask a student to drag the numbers of a telephone number on the interactive whiteboard. Next ask a student to split the number 35 into the digits 3 and 5, and ask another student to create two-digit numbers with the digits 8 and 6. To check their work remove the cover to display 86 and 68.

To check that students understand the difference between digit and number ask the following questions:
What is the difference between a digit and a number?
Can a number be made of digits?
Can a digit be made of numbers?
How many digits are in the number 21?

Guided Practice

Decide together with students how many digits a number has, name the digits in the number and then choose the numbers made of two digits.

Closing

Repeat the goal that the understand the difference between a digit and a number. Ask which digits are in the number 48 and then on the next slide you can ask a few students to make numbers with the digits on the board. As a final game, divide the class into groups of four. Give each group number cards (to 100) and say that two students will use their hands to show the number, and the other two must guess the number. They take turns.

Instruction materials

Number cards to 100

About Gynzy

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With a focus on elementary education, Gynzy’s Whiteboard, digital tools, and activities make it easy for teachers to save time building lessons, increase student engagement, and make classroom management more efficient.