the operations and properties of the operations and how addition Interventions/Extensions Products/Project and subtraction are related. (Van de Walle) Students will work in small Problem solving Inventive strategies do not include simply counting to solve a group with the teacher to poster problem. practice the problem solving Inventive or flexible strategies should be shared and discussed in process. The teacher will Journal reflection whole class setting so other students can explore and try them. (Be reiterate the use of reading entry explaining their sure the student sharing the strategy understands it before sharing strategies in math to thought process in it.) comprehend the problem. solving a specific Students will use problem. manipulatives and work mats Compose/Decompose Numbers as needed. Students should explore numbers by composing and decomposing. This also includes writing them in expanded form. Students can use work mats and base ten blocks or counters for this exploration. At this point in the year students should be composing and decomposing two and three digit numbers. Activity: Students will continue exploring composing and decomposing numbers to learn basic facts and improve number fluency. In this activity, students will know the whole and one of the parts. It is their task to determine the missing part. (Algebraic thinking.) Students will work with a partner, and each pair of students will need counters, Whole Part/Part work mat, and a plastic cup (that is not transparent). Students choose, or are given a target number. They count out that many counters and the number is recorded as the whole. Player 1 covers his/her eyes, while Player 2 puts some of the counters the plastic cup). Player 1 opens his/her eyes and “under rock” (the tries to determine how many counters are under the rock. The cup is lifted to check Player and the two parts are listed on the 1’s answer, recording sheet. The partners repeat the process with another combination for the target number. Ten Frame to solve addition and subtraction problems:
the operations and properties of the operations and how addition and subtraction are related. (Van de Walle) Inventive strategies do not include simply counting to solve a problem. Inventive or flexible strategies should be shared and discussed in whole class setting so other students can explore and try them. (Be sure the student sharing the strategy understands it before sharing it.) Compose/Decompose Numbers Students should explore numbers by composing and decomposing. This also includes writing them in expanded form. Students can use work mats and base ten blocks or counters for this exploration. At this point in the year students should be composing and decomposing two and three digit numbers. Activity: Students will continue exploring composing and decomposing numbers to learn basic facts and improve number fluency. In this activity, students will know the whole and one of the parts. It is their task to determine the missing part. (Algebraic thinking.) Students will work with a partner, and each pair of students will need counters, Whole Part/Part work mat, and a plastic cup (that is not transparent). Students choose, or are given a target number. They count out that many counters and the number is recorded as the whole. Player 1 covers his/her eyes, while Player 2 puts some of the counters “under the rock” (the plastic cup). Player 1 opens his/her eyes and tries to determine how many counters are under the rock. The cup is lifted to check Player 1’s answer, and the two parts are listed on the recording sheet. The partners repeat the process with another combination for the target number. Ten Frame to solve addition and subtraction problems: Interventions/Extensions Students will work in small group with the teacher to practice the problem solving process. The teacher will reiterate the use of reading strategies in math to comprehend the problem. Students will use manipulatives and work mats as needed. Products/Project Problem solving poster Journal reflection entry explaining their thought process in solving a specific problem.