5 results for "addition"

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1st Grade - 2nd Grade

Objective Operations & Algebraic Thinking Using strategies to add and subtract fluently within 20 (e.g., counting on, making ten, decomposing or creating equivalent sums) Materials Needed “Make 10” frame Place Value Blocks Number line “Spin-To-Build” spinner “Build a Sum” record sheet Paper clips Pencils Introduction Pair students with partners, and give each pair 10 ones cubes and 1 tens rod from the Place Value Blocks set. Challenge students to see how many ways they can “make 10” in two minutes (e.g., 2 cubes + 8 cubes, 3 cubes + 7 cubes, etc.). Invite students to share their answers and compare. Provide the “Make 10” frame and have students complete it. Model the problem created in the frame. Ask, “How can I find out how to make 12? 14? 18? Can I start from 10? Is it faster?” Note: Use Place Value Blocks to show visual representations of two-digit numbers. For example, 14 is 1 tens rod and 4 ones cubes.

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Wild About Word Problems

1st Grade - 2nd Grade

Objectives CCSS Math/Operations and Algebraic Thinking: 1.OA.1, 1.OA.2 Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing with unknowns in all positions by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. Solve word problems that call for addition of three whole numbers whose sum is less than or equal to 20 by using objects, drawings, and situations with a symbol for the unknown number to represent the problem. Materials Needed Animals on Board by Stuart J. Murphy Wild Animal Counters or other animal manipulatives Animal Story Problems and answer key Create-Your-Own Animal Story Problems Easel, document camera, chart paper, chalkboard or whiteboard [to display problems] Introduction Read aloud Animals on Board by Stuart J. Murphy. As you read, encourage students to help you solve the word problems that are presented in the story. Then point out how the problems are represented in numeric form to show the sum. For example, you might say, “There were three tigers. Along came two more. 3 + 2 = how many?”

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Fall Skip-Counting Fun

1st Grade - 2nd Grade

Objectives Using strategies to add and subtract fluently within 20 Skip-counting by 2s, 5s, 10s and 100s Understanding that skip-counting is a faster way to count objects in a group Materials Needed Christopher Counting by Valeri Gorbachev Acorn Number Cards Counting by 2s Number Line Pumpkin Number Cards Counting by 5s Number Line Lakeshore Glue Sticks Fall Skip-Counting Fun Addition Practice Pointer or yardstick Scissors Introduction Read Christopher Counting by Valeri Gorbachev. Talk to the students about how excited the main character is about counting. Ask, “What are some objects that Christopher counted?” Then ask, “What are some objects that you can count?” Point out that Christopher was counting by 1s. Explain that students can count objects faster by skip-counting.

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Pronoun Practice

1st Grade - 2nd Grade

Use personal, possessive and indefinite pronouns (e.g., I, me, my, they, them, their, anyone, everything). Materials Needed: pronoun cards, board, flip chart or document camera; The Fire Cat by Esther Averill; Pronoun Search practice page; pencils or highlighters; index cards. Introduction: Display the pronoun cards on a board or document camera. Tell students that you are going to read aloud The Fire Cat by Esther Averill. Before you read, ask students to help you identify different pronouns as they come up in the story. Explain that the names of the characters are proper nouns (e.g., Pickles and Mrs. Goodkind), but the author often refers to them again by using pronouns, such as he, she, her or him. The author also may use possessive pronouns, such as hers or his, to explain that something belongs to a character. In addition, Mrs. Goodkind refers to Pickles by using the pronoun you instead of always calling him by name.

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Get to 10: Equation Fun

2nd Grade

Objectives Students will express the same number multiple ways. Students will solve simple addition and subtraction problems. Materials Needed Chalkboard and chalk (or whiteboard and marker) Pocket chart Number cards and equation strips “Get to 10!” activity sheet Number tiles reproducible Scissors

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5 results for "addition"