Guided Lessons

# Domino Multiplication

Don't knock the dominoes over! In this lesson, your students will practice multiplying by 2's with dominoes.

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Students will practice multiplying by 2's.

(5 minutes)
• Tell your students that they will practice multiplying by 2's using a fun worksheet and playing a game.
(5 minutes)
• Show students the dominoes.
• Explain to them that the dots on the left side and right side of the domino represent a number. For example, three dots represents the number three and so on.
• Tell your students that they will be adding up all the dots on one domino (left and right side) and multiplying that number by 2.
(10 minutes)
• Pass out the Double Domino multiplication worksheet.
• Have your students add up the dots on each domino, multiply by 2, and write down the answer on their worksheets.
• When the worksheet is completed, group the students into pairs of two.
• Explain that they will be playing the game of dominoes with a twist!
• Pass out five dominoes facedown to each student.
• Direct one partner to go first, place down a domino, add up the total, and multiply by 2.
• Instruct the second partner to check the answer of the other student, and then have that partner take her turn.
• Have the second partner place a domino down that matches the end of the first domino. For example, if the first partner's domino is a 2 on the left side and a 3 on the right side, the 2nd partner needs to place a 3 down to match the 3.
• Ask that student to add up the total and multiply by 2.
• If one of the students doesn't have a match to the domino, have her draw one from a pile. If there still isn't a match, the turn is over. If there is a match, the student plays the domino.
(20 minutes)
• Direct students and their partners to play the domino multiplication game until there are no more dominoes.
• If there is time, have the students play the game again.
• Enrichment: Instruct your students to multiply their domino sums by a different number other than 2, such as a 3, depending on their learning needs.
• Support: Give your students physical blocks to count out their multiplication problems. For example, if the question is 2 x 7, then have these students count out two rows of seven blocks and add them up.
(5 minutes)
• Walk around during the domino game, and check to make sure that your students are completing the activity.
(5 minutes)
• Have your students come back together as a class.
• Write an example multiplication problem on the board.