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Lesson Creator

  • Preparation
  • Direct Instruction
  • Student Practice
  • Supplements
  • Review

1. Tell Us About Your Lesson

All fields are required unless marked as optional

A. Lesson Overview


Students will

  • •

    Basic geometry vocabulary (basic shapes)

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  • •

    Rectangle: a two-dimensional plane shape with 4 sides and four right angles. Its opposite sides are parallel and of equal length.

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  • •

    Perimeter: the total distance around the geometric figure in linear units.

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  • •

    Length (l): longer side of a rectangle Width (w): shorter side of a rectangle

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    Possible Formula for a Perimeter: (2 × length) + (2 × width) = p 2l + 2w = p P = l + l + w + w P = 2 (l + w)

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B. Lesson Details

Lesson Duration (minutes)The time (minutes) to complete the whole lesson.

Grade LevelsSelect all that apply

Subjects/TopicsChoose the most relevant subject(s). Select up to 3.

    Coding Styles

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    2. Preparation

    This helps the teacher prepare for the lesson before the class session

    A. Student Materials

    B. Background Knowledge (Optional)

    C. Lesson Tips (Optional)

    Add tips for the educator that don't fit into Direct Instruction or Student Practice. You can always return to this page to add more.

    • This standard calls for the perimeter of only rectangles. A square is a rectangle.
    • Review different ways to show multiplication: 2 × length 2
    • length 2L 2(L)

    *This lesson has been modified due to COVID19 guidelines, hence the allocation of one Ozobot per student. The lesson may be taught whole class with the teacher demonstrating using an Ozobot, for guided instruction. Then, depending upon how many Ozobots are in the classroom, students can individually complete the activity using the 1:1 guidelines and rotate the use of Ozobots through the remainder of the students after sensitization procedures have been completed.

    3. Direct Instruction (Teacher-Facing Instructions)

    These are the steps the educator will read. Include any front loading, modeling or explicit instruction before students work independently or in groups.

    Instruction

    Steps:

    1. Write the formula for perimeter. Review the definition of Perimeter with the class.

    (Ahead of class, draw a rectangle and label the lengths as 8 and the widths as 4. Pre-code this so that Ozobot will go around the rectangle one time--you will demonstrate this during the guided lesson for the class). Show this model to the class now and ask students to identify what they notice about the sides (ex: students may notice that the longer sides measure the same, the shorter sides measure the same). Model how to find the perimeter by showing Ozobot moving around the outside of the rectangle. Say to the students: "Ozobot is moving around the outside of this rectangle, it is moving around the perimeter". Ask: "How many units has Ozobot traveled?"

    1. Substitute known information and solve.
    By adding up the units Ozobot traveled, students will name the perimeter.
    1. Label with the correct unit of measurement.
    Be sure to identify the unit of measurement in the response/answer. *This lesson has been modified due to COVID19 guidelines, hence the allocation of one Ozobot per student. The lesson may be taught whole class with the teacher demonstrating using an Ozobot, for guided instruction. Then, depending upon how many Ozobots are in the classroom, students can individually complete the activity using the 1:1 guidelines and rotate the use of Ozobots through the remainder of the students after sensitization procedures have been completed.

    Instruction

    After the demonstration, remind students of the basic steps:

    Steps:

    1. Write the formula for perimeter.
    2. Substitute known information and solve.
    3. Label with the correct unit of measurement.

    4. Student Practice (Student-Facing Instructions)

    These are step-by-step instructions delivered directly to the students as they work independently or in groups

    Student Instructions

    Instruction

    Please upload any student resources, videos, etc. (Max. size: 512 MB videos, 10 MB all other files)

    Goal

    Instruction

    Please upload any student resources, videos, etc. (Max. size: 512 MB videos, 10 MB all other files)

    Goal

    Lesson Extension (Optional)

    Add student instructions for a lesson extension.

    Instruction

    Please upload any student resources, videos, etc. (Max. size: 512 MB videos, 10 MB all other files)

    Goal

    5. Supplements

    A. Lesson Closure (Optional)
    Give tips for how to wrap up the lesson and assess student learning. (Want to add an attachment? Use Part C, below.)

    Application of MPs: MP2: What is a real life perimeter scenario? I can use perimeter in real life _ .

    MP4: How could you change the formula for the perimeter of a rectangle if the shape is a square? I can change the formula to .

    B. Academic Standards (At least one standard required)
    Choose a category from the dropdown on the left. In the blank on the right, begin typing the number of the standard.

      ccss-math-content-4-md-a-2 ✖ccss-math-content-4-md-a-3 ✖

      C. Add Other Attachments (Optional)
      Please upload any student handouts, videos, sample solutions, etc. (Max. size: 1 GB videos, 10 MB all other files)

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      Review

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