First Grade Adding 5's and 4's
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Questions and Answers

What is a number line used for?

  • To compare different mathematical operations
  • To count down from a number
  • To create shapes and angles
  • To represent numbers visually (correct)
  • How many spaces do you jump forward to add 5 starting from the number 3?

  • 3 spaces
  • 8 spaces
  • 10 spaces
  • 5 spaces (correct)
  • In the word problem, 'There are 10 birds in a tree. 4 more birds come to the tree. How many birds are there now?', what operation do you perform to find the answer?

  • Multiplication
  • Addition (correct)
  • Division
  • Subtraction
  • Which strategy can help students solve word problems effectively?

    <p>Drawing visual aids to represent the problem</p> Signup and view all the answers

    When adding using a number line, what is the first step?

    <p>Start at the first number</p> Signup and view all the answers

    Study Notes

    First Grade Adding 5's and 4's

    Using Number Lines

    • Definition: A number line is a visual representation of numbers in a straight line, allowing easy addition and subtraction.
    • Adding 5's:
      • Start at the first number.
      • Jump forward 5 spaces for each addition:
        • Example: From 3, jump to 8 (3 + 5 = 8).
    • Adding 4's:
      • Start at the first number.
      • Jump forward 4 spaces for each addition:
        • Example: From 6, jump to 10 (6 + 4 = 10).
    • Visualization: Encourage students to draw their own number lines to see the jumps clearly.

    Word Problems With Addition

    • Understanding Word Problems: Teach students to identify key information and determine what is being asked.
    • Structure of Word Problems:
      • Identify the starting number.
      • Determine how many to add (either 4 or 5).
      • Calculate the total.
    • Examples:
      • 5's Word Problem: "If I have 7 apples and I buy 5 more, how many apples do I have now?" (7 + 5 = 12).
      • 4's Word Problem: "There are 10 birds in a tree. 4 more birds come to the tree. How many birds are there now?" (10 + 4 = 14).
    • Key Strategies:
      • Use drawings to visualize the problem.
      • Encourage students to write out the equation.
      • Practice with various scenarios to reinforce skills.

    Using Number Lines

    • A number line visually represents numbers in a straight line, facilitating addition and subtraction.
    • Adding 5's involves starting at a given number and jumping forward 5 spaces for each addition.
    • For example, starting from 3 and jumping 5 spaces results in 3 + 5 = 8.
    • Adding 4's follows a similar approach, beginning at a chosen number and making 4-space jumps.
    • For instance, starting from 6 and jumping 4 spaces gives 6 + 4 = 10.
    • Visual aids like drawing personal number lines can help students understand the jumps more effectively.

    Word Problems With Addition

    • Understanding word problems entails recognizing key information and clarifying the question being asked.
    • The structure of word problems includes identifying the initial number, the amount to add (4 or 5), and then calculating the total.
    • An example of a 5's word problem: "If I have 7 apples and buy 5 more, how many apples do I have?" (7 + 5 = 12).
    • An example of a 4's word problem: "There are 10 birds in a tree. 4 more come to the tree. How many birds are there now?" (10 + 4 = 14).
    • Key strategies for solving word problems include using drawings for visualization and writing out the equations explicitly.
    • Practicing various scenarios reinforces addition skills and enhances problem-solving abilities.

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    Description

    This quiz focuses on teaching first graders how to add using number lines and solve simple word problems involving additions of 4 and 5. Students will learn to visualize their calculations and understand key terms in word problems. Practicing these skills will solidify their foundational math abilities.

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