Who knew the sum of a number's digits gives such interesting information? The 18th installment of a 21-part module has scholars investigate division by three and nine. After looking at several examples, they develop divisibility tests...

How do you know if a number is divisible? Instructors first prove the divisibility rules for three and four and then class members use this modeling to prove given divisibility rules for eight and nine either individually or in...

Number patterns help your kids learn divisibility and estimation rules. This activity aims to strengthen their math fact memorization skills by presenting several rules they are expected to memorize through practice.

Sixth graders strengthen their knowledge of the divisibility rules. Students access that mental math can be faster than the calculator for certain types of problems. Students can make generalizations and discover patterns in finding the...

Students inspect divisibility rules. In this divisibility rules lesson, students study the relationship between factorization and the divisibility rules for 2, 3, 5, 6, 9, and 10. Students read One Hundred Hungry Ants and A Remainder of...

Young scholars discover the Sieve of Erathosthenes. They explore a method to find all the prime numbers in a group of numbers. Using models, students practice divisibility rules while examining the difference between prime and composite...

In this math worksheet, students are given a reminder of what divisibility means. Students then answer 10 divisibility questions.

Middle schoolers play Divisibility Buzz to reinforce divisibility rule for three.

Students explore the concept of divisibility. In this divisibility lesson, students determine which numbers are divisible by another number.

Sixth graders participate in a lesson that covers the Rules of Divisibility. They play a game for a warm-up before the direct instruction. Following the rules being covered they finish the lesson using an assignment included in the...

In this math worksheet, students examine the 20 numbers in order to test their divisibility. The rules of divisibility are given at the top of the page.

In this mathematics worksheet, 4th graders write the divisibility rule for each factor given. Then they practice the rules by dividing the numbers listed by each factor and place a check mark in the box if it is a factor of the number.

Ninth graders investigate divisibility rules.  In this middle school mathematics/Algebra I lesson, 9th graders explore the divisibility rules of 7, 11, and 13.  Students examine certain six-digit numbers that are divisible by...

Students examine the rules of divisibility for the numbers 2, 3, 5, 6, 9 and 10. They apply these rules to larger numbers.

In this divisibility rules worksheet, students solve problems using the division rule for the number three. Examples and explanations are given prior to the exercise. This one-page worksheet contains approximately 20 problems.

Eighth graders explore Excel and discover rules of divisibility for the numbers 2, 3, 4, 5, 6, 9, and 10; students examine multiples of 2 using pencil/ paper, then create a chart in Excel that will allow them to more easily see patterns...

In this math worksheet, students find the answers to the problems that use large numbers to apply the rules of divisibility.

Use the 20 Questions game to practice math vocabulary and number properties! Project a hundreds chart and hand one out to learners. Ideally, give them counters (beans would work well) to mark off the chart so you can play multiple times....

Learners create a notebook with divisibility rules in it. In this algebra lesson, students write down the rules that determine the factors of a number. They continue to add to the book and use it to help them on their problems.

First graders analyze politics by participating in a class rules lesson plan. In this democracy lesson plan, 1st graders identify several class and school rules they dislike and conduct discussions to examine if they should be changed or...

Learners become familiar with divisibility rules as they view a fun PowerPoint Presentation. Within this lesson, students are provided with a worksheet that explains the divisibility rules. Finally, learners are given the opportunity...

Students become familiar with the importance of money now and the forms of money used in the past.  In this money lesson, students investigate the cour characteristics of money: portable, divisible, durable and acceptable. ...

Give a voice to even the most quiet learners! Post discussion questions in different locations (on the whiteboard or around the room on posters). Class members then either answer a question posed or comment on a peer's response. Instead...

Middle schoolers read maps and artifacts for information indicating the existence of a trade network in Old Babylonia and beyond. They list goods imported to and exported from Babylonia. They indicate trading centers on a map of ancient...