Lesson Plan : Equation Making

Teacher Name:
 Katy Sybesma

 Addition Equations.
 Subject matter:This lesson will be over the numbers 1 through 20. Cooperative Learning Structure: Chapter 12 Information Sharing Structure: Share and Compare. Rationale: Share and Compare is a wonderful activity for this lesson because it will allow the students to explore many different addition equations and allow them considerable practice in counting objects and making their own addition problems.
 TEKS: 111.12.
 The students will be able to write addition equations that add up to the number 20. The students will be able to explain their equations clearly to others.
 two-sided counters, pencils, paper
 Organize the students into pairs and tell them that they will be competing against the whole class for a prize. Tell them that they will need to use their minds and their math skills during the activity.
 Tell the students their mission: to come up with as many accurate addition equations adding up to 2 through 20 as possible. Show the students what they must do: first shake up any random amount of two-sided counters in your hands and drop them down on the table. Split up the red chips and the yellow chips into separate piles. Tell the students to count out the red chips with you, then write the number down on a piece of paper. Next have the students count out the yellow chips with you and write that number down. Tell the students that they will be adding up the two piles to see how much they add up to. Show the students how to make an addition equation using numbers, a plus sign and an equal sign. Write an equation to solve how many red chips and yellow chips you have all together. As a class count out all of the chips. Write down the answer. Tell the students to go through the exact steps that you went through with the class. Remind the students that the pair with the most accurate addition problems will win a prize.
 Have each pair go up to the front of the class and do a math problem using the counters. Have one person shake up the counters, drop them and separate the colors. Have the pair count out the red counters and the yellow counters. Have the other partner then write out the math equation, getting help from his or her partner when needed. Next, have the students share their addition problems with the class. Then have that pair sit down and have another pair come up. Continue with these steps until every pair has been up in front of the class.
 For diverse learners who have trouble with numbers and adding, pair those students up with the more advanced students in mathematics. Let these pairs get extra practice before the activity starts, such as the day before or during free time.
Checking For Understanding:
 As the students are working walk around the room and observe each pair. Watch as the pairs share their equations with other pairs. Make sure that they follow each step and ask them how they came up with the answers to their equations.
 Stop the students when 45 minutes have passed and have them come and sit on the carpet. Ask each pair how many equations they got done. Have the pair with the most equations go up to the front of the class and analyze each of their problems with the class. If every problem is correct then the students will win a prize from the prize box.
 Check off the students names who know their numbers and know how to add and make equations. Review each pair's equations with them and write down what they need to work on.
Teacher Reflections:
 This lesson went very well. The students really loved making their own equations. We had a little trouble at the beginning because the students were so fascinated with the two-colored counters, they kept turning them over during the counting process and messing up the amounts because they were changing the colors when they turned them over. Other than that, it was a very fun and exciting lesson!

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