Weebly



Geometry lessonSchool of EducationThe College of New Jersey1. Topic and Grade: Let’s Make Snow Angles!, 4th grade2. Lesson Essential Question(s): How can angles of different measures work together to create different structures?3. Standards:4.MD.C.5: Recognize angles as geometric shapes that are formed wherever two rays share a common endpoint, and understand the concepts of angle measurement.4.MD.C.6: Measure angles in whole-number degrees using a protractor. Sketch angles of specified SS.MATH.PRACTICE.MP4: Model with SS.MATH.PRACTICE.MP5: Use appropriate tools SS.MATH.PRACTICE.MP7: Look for and make use of structure.4. Learning Objectives and Assessments: Learning ObjectivesAssessmentsSWBAT utilize a protractor accurately to measure and create angles correlating with what the worksheet asks.Worksheet, observation.SWBAT create the mystery snowflakes as described by each worksheetResulting snowflake created, observation.5. Materials: Snowflake picturesWhite boardDry erase markersProtractorsPencilsSnowflake worksheetsColored pencils or crayonsPopsicle sticksScissors Glue 6 . Pre-lesson assignments and/or prior knowledge: Students will have already had a lesson introducing the concepts of points, rays, line segments, and perpendicular lines, parallel lines, and angles (measuring them, not classifying them). Students will also have already learned how to use a protractor to measure and create angles.7. Lesson Beginning: Students will be shown a variety of pictures of crystalline snowflakes and asked what they notice about them.Teacher will scaffold thinking and questions to lead students to notice the geometric shapes and patterns (with extra emphasis on the fact that snowflakes are symmetrical) that appear inside the snowflakes.Students will generate a list on the board of different shapes and angles (big/little angles) that they see represented in each snowflake.Teacher will draw special attention to the angles in each snowflake.8. Instructional Plan: The teacher will begin a discussion about how angles are different from each otherAt this point, the teacher will introduce the terms right angle, acute angle, and obtuse angle, and explain the difference between the two.The class will brainstorm a drawn list of different shapes that contain the different angles they just learned aboutThe teacher will then pass out the initial snowflake angle sheets and explain instructions.Students are to look at the snowflakes on the worksheet and trace over the lines and angles, and use a different color depending on the angle typeRed for acute anglesBlue for obtuse anglesGreen for right anglesStudents will be told that they can use protractors to measure angles if they want or need to.When students finish the tracing portion of the worksheet, they will be instructed to move on to the challenge question on their worksheet.Each challenge question will ask the student to create a snowflake that fits a certain number of characteristics.After students draw their snowflake based on the challenge question, they will be asked to use popsicle sticks, protractors, glue and scissors to construct a 3-D representation of the snowflake that the designedDifferentiation: Students will be given the option of working on their own or in pairs. Pairs will be created by the teacher based on student mathematical ability.Students will be given worksheets that have different challenge questions based on student mathematical ability.The lowest performing students might be asked to include at least 2 right angles and 4 acute angles in their snowflake, the middle performing students might be asked to include 2 obtuse and 2 acute and 2 right angles in their snowflake, and the highest performing students might be asked to include 4 obtuse and 4 acute and 6 right angles in their snowflake.Early finishers will be asked to create another snowflake that is different than the one they have already created but that still follows the same parameters that their challenge question gives them.Questions: What is the difference between an acute angle and an obtuse angle?What is the difference between an acute angle and a right angle?What is the difference between a right angle and an obtuse angle?What angles do you see in these pictures of snowflakes?Classroom Management: Students will be used to distribute worksheets so the teacher can keep an eye on the whole class.Students will be directed to another table in the room that holds the popsicle sticks, scissors and glue to gather the materials they need when they reach that stage.If students choose pairs, the pairs will be mainly dependent on mathematical ability, but specific students with consistent behavior issues will be strategically place in pairs based on both mathematical ability and on which pair includes another student who consistently exhibits good behavior.Classroom behavior chart will be used as neededTransitions: Students will be directed to their seats at the beginning of the lesson.Students will be dismissed to begin the singular or pair activity by the teacher, once the students have found or been assigned to their pair. The individual student or pair will find their own space in the classroom in which to work.Once students have finished their angle coloring and new snowflake creation, they will be directed to another table where they will gather their snowflake creation materials.Students will be directed to return to their seats once all of the challenge question snowflakes have been made.9. Closure: Each student will be asked to present his or her snowflake to the class and highlight one or two angles that they included.Snowflakes will then be hung in the window and referenced as subsequent lessons on angles happen.Name: ____________________________________________Date: _________________________________Let’s Make Snow Angles!Directions: Look at the snowflakes below. Highlight or color all acute angles red, all obtuse angles blue, and all right angles green. Then, move on to the challenge question and create your own snowflake!320040013017522860012701371600723904800600121920Challenge Question! Create a snowflake that includes ________ acute angles, ________ obtuse angles, and _______ right angles. Draw it below, and then create your snowflake using glue and popsicle sticks! ................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download