Computer and projector, Mobile devices for students
Activity Description
Source: Khan Academy Homepage (License: Protected by Copyright (c) [i.e. screenshot])
The Khan Academy is filled with video presentations on a multitude of math subjects and worked examples of math problems.
It is organized according to math Subject: Arithmetic then Topic: Division 1. Because of the multitude of examples, you can find another Division lesson under Dividing Whole Numbers and Applications 1. Down the left, you see the organization of each lesson/course.
Preparation
Preview the video.
Match it to pages in the student's math book for exercises to be done by the students.
Print Documents: Math Review worksheet for facts review and Beginning Division Review
How-To
Either select Math next to Jump to Topic, or just scroll down the page until you find the Arithmetic and Pre-Algebra section.
Use the video as a discussion start or assign as a follow-up to the lesson. Could also be used for independent study by a student with follow-up help provided by the teacher.
Hand out Math Review Worksheet. Have students practice their facts. Each week hand out a review sheet for students to improve their speed and accuracy.
Teacher Tips
As a teacher, you can create a class. Students can sign onto Khan Academy and join your class. You are then given details about student growth, topics they are struggling with, ones they have mastered and time spent on Khan.
More Ways
Khan Academy has a wide range of Mathematics subjects and courses. It is a great source of help for your students at all levels in all areas from Early Math to Calculus and Statistics.
Assign the video to be viewed at home and the homework problems done in class the next day. (Reverse lessons)
If you would like to assign some online practice for students, select Practice in the site's header menu. Then select from the many online activities presented here by topic. In the left-hand menu, you can Show or Hide All the activities or you can use the graphical map to make activity choices. You can also move the map around by using your mouse to click, hold, and drag the map (anywhere except on the activity dots themselves.)
Program Areas
ABE: Adult Basic Education
ESL: English as a Second Language
ASE: High School Equivalency Preparation
ASE: High School Diploma
CTE: Career Technical Education
AwD: Adults with Disabilities
Levels
Low
Intermediate
High
All Levels
View Lesson Plan
Warm-up
Engagement
Warm up the class by playing a math game. Here is a possibility called Who Am I? Have learners answer the question to each other.
Write a number on the board.
Ask the learners to identify the number as odd or even
Multiply by 10, 5, etc.
Add a number to it
Subtract a number from it
For more ideas see the Document: Math Warm-ups
Introduction
Engagement
Division is used throughout our daily lives. For example here is a problem requiring division.
You are playing a card game. It is up to you to deal the deck of 52 cards evenly to the six of you playing the game. How many cards will each person get and how many will be left to put in the draw pile?
52 divided by 6 equals 8 with 4 cards left over.
Have students get into pairs or small goups and brainstorm ideas about ways you can use division. Share ideas with the class and write them on the board.
Presentation
Engagement Enhancement
There are several ways of thinking about division.
Go to the online website Khan Academy to watch Introduction to Division. (17:02 minute video)
At 5:16 Sal Khan explains two different ways to think of Division.
Stop the video at 6:33 to discuss these two ways with the class.
In small groups have learners draw or use manipulatives to explain the difference to the group.
Practice
Engagement Enhancement
Hand out the document Beginning Division Review.
In their groups have students use drawings or manipulatives to show two different ways of representing division (discussed in the video).
Hand out the document, Math-review-worksheet FINAL.
In pairs or small groups, learners practice multiplication math facts using a timer to compete with their own best times.
Evaluation
Engagement Enhancement
Learners take the Unit test at Khan Academy. When finished, they can take a screenshot of the score to send to the teacher.
In pairs, learners come to the board. One is the 'writer' the other is the 'explainer'. Together they present a division problem, share the process, and answer to the class. Continue until all students have had the opportunity to present as pairs. If time is available, reverse the roles and do it again.
Application
Engagement Enhancement Extension
At home or at work, learners use their phones to take photos of someplace/way they needed to use division.
Learners send the photos to the class/teacher. At the next class session, share the photos and discuss the different ways division is used in our everyday life.
Understand methods and procedures used to
purchase goods and services
Use information to identify and purchase goods
and services
Use measurement and money
Math
Algebra
Calculus
Math
Compute using decimal fractions
Compute using fractions
Compute using whole numbers
Compute with percents, rate, ratio, and
proportion
Math
Consumer Math
Conversions
Decimals
Math
Demonstrate measurement skills
Demonstrate pre-computation skills
Math
Fractions
Geometry
Integrated Math
Math
Interpret data from graphs and compute
averages
Math
Math Electives
Percentages
Pre-Algebra
Proportions
Trigonometry
Math
Use estimation and mental arithmetic
Use expressions, equations, and formulas
Use statistics and probability
Math
Whole Number Skills
Mathematics
Algebraic Concepts
Data Analysis/Probability/Statistics
Measurement/Geometry
Numbers and Operations on Numbers
View CTE Anchor Standards
Anchor Standard 1: Academics - Analyze and apply appropriate academic standards required for successful industry sector pathway
completion leading to postsecondary education and employment. Refer to the industry sector alignment
matrix for identification of standards.
View Standards
Number and Operations: Base Ten
3.NBT.1-3 - Use place value understanding and properties of operations to perform multi-digit arithmetic.
4.NBT.1-3 - Generalize place value understanding for multi-digit whole numbers.
4.NBT.4-6 - Use place value understanding and properties of operations to perform multi-digit arithmetic.
Operations and Algebraic Thinking
3.OA.1-4 - Represent and solve problems involving multiplication and division.
3.OA.5-6 - Understand properties of multiplication and the relationship between multiplication and division.
3.OA.7 - Multiply and divide within 100.
4.OA.4 - Gain familiarity with factors and multiples.
CC BY: This license allows reusers to distribute, remix, adapt, and build upon the material in any medium or format, so long as
attribution is given to the creator. The license allows for commercial use.
View Conditions
Permitted Uses
Personal and Educational Use: You may access and use Khan Academy content for personal learning or within educational settings, such as classrooms or study groups.
Non-Commercial Sharing: Sharing links to Khan Academy resources with students, parents, or colleagues for educational purposes is encouraged.
Embedding Videos: Embedding Khan Academy videos into your website or learning management system is allowed, provided it's for non-commercial educational use.
Attribution: When using or sharing materials, you must provide appropriate credit to Khan Academy, including a link to www.khanacademy.org and the following verbiage:
"Note: All Khan Academy content is available for free at www.khanacademy.org."
