Scale Drawings By Barb Leach 7 th Grade Mathematics Owensville Middle School.

Slides:

Advertisements

Similar presentations

Scale Drawings and Scale Models

Advertisements

5.8 Scale Drawing and Models

Preview Warm Up California Standards Lesson Presentation.

5.7 Scale Drawings and Models

(Re)Learning The Basics Feet and Inches Perimeter Area Volume Proportions.

Lesson 6.5 Scale Drawings Students will be able to understand ratios and proportions in scale drawings.

Quiz Use the properties of similar figures to answer 1 and 2:

Learning Target I can use proportional reasoning to solve scale drawing problems.

RATIOS OF SCALE DRAWINGS. SCALE DRAWINGS SCALE DRAWINGS: A scale drawing is a drawing that represents a real object. The scale of the drawing is the ratio.

Over Lesson 6–5 A.A B.B C.C D.D 5-Minute Check 1 Write a proportion. Then solve. 18 donuts in 3 boxes, 30 donuts in b boxes There are approximately 2.54.

Scale, Scale Factor, & Scale Drawings

Holt CA Course 1 5-8Scale Drawings and Scale Models Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

What will I learn today? Learn to understand ratios and proportions in scale drawings. Learn to use ratios and proportions with scale.

Scale Drawings & Models

Pre-Algebra 7-7 Scale Drawings Learn to make comparisons between and find dimensions of scale drawings and actual objects.

Scale Factor. Organizer What is it?Find a Scale Factor #1 RuleReal Word Problem Scale Factor.

Geometry with Cosby Missy Cosby Okemos High School Math Instructor.

Scale Drawings & Proportions

Percent of a Number By Barb Leach 7 th Grade Mathematics Owensville Middle School.

Use scales to find missing parts: maps blueprints models

Scale Drawing and Scale Models

Find Actual Measurements

The Percent Proportion

Lesson 17 Using Scale Drawings. Scale Drawings Scale drawings and scale models make it possible to show objects accurately that are either too large or.

8-9 6 th grade math Scale Drawings. Objective To interpret scale drawings Why? To know how to interpret blueprints or scale drawings.

Holt CA Course 1 5-8Scale Drawings and Scale Models NS1.3 Use proportions to solve problems (e.g., determine the value of N if T =, find the length of.

11.2 Apply Proportion to Scale Models SWBAT solve problems involving scale drawings.

Bell Work: The area of the hexagonal base of a pyramid is 18√3. the height of the pyramid is 12. what is the volume?

 Two figures are similar if…  1.) Their corresponding angles are congruent  2.) The corresponding sides are PROPORTIONAL!!! 5 in A B C D 4 in 10 in.

Holt CA Course 1 5-8Scale Drawings and Scale Models Warm Up Warm Up California Standards California Standards Lesson Presentation Lesson PresentationPreview.

Welcome to Math 6 Scale Factors. The Connector… OBJECTIVES: Each student will: 1.Explain the meaning of the term scale factor. 2.Understand ratios and.

Section 6.6 Scale Drawings

Course Scale Drawings and Scale Models Warm Up Evaluate the following for x = x2. x Evaluate the following for x = x4. x

Ms. Drake 7th grade Math Fractions Lesson 46 Scale Drawings and Scale Models.

Holt Geometry 7-5 Using Proportional Relationships Warm Up Convert each measurement ft 3 in. to inches 2. 5 m 38 cm to centimeters Find the perimeter.

Similar Shapes and Scale Drawings

Holt Geometry 7-5 Using Proportional Relationships Warm Up Convert each measurement ft 3 in. to inches 2. 5 m 38 cm to centimeters Find the perimeter.

4-6 Scale Drawings and Scale Models Lesson Scale Drawings and Scale Models Warm Up Write the two requirements needed for two figures to be SIMILAR:

Scale Drawings and Scale Models

Scale Drawings and Scale Models

Scale Drawing and Scale Models

Applying Properties of Similar Triangles

Objectives Use ratios to make indirect measurements.

Learn to understand ratios and proportions in scale drawings

Scale Drawings Bell Ringers

Using Proportional Relationships

Maps and scale drawings are:

= Divide each measure by the GCF, 3. drawing length actual length

Using Proportions with Similar Figures

Use Proportions to Solve Geometry Problems

7-5 Vocabulary Indirect measurement Scale drawing scale.

Scale Factor TeacherTwins©2014.

The distance on the map or drawing or the actual distance.

Scale Drawings and Scale Models

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

I Can Solve Problems Using Scale Drawings!

Scale Drawings and Scale Models

Scale Drawings and Scale Models

AIM 7-5: How can we use ratios to make indirect measurements?

7-7 Scale Drawings Warm Up Problem of the Day Lesson Presentation

Using Proportional Relationships

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

7-7 Scale Drawings Warm Up Problem of the Day Lesson Presentation

Insert Lesson Title Here

HW L10-3 pg 392 #8-14 L10-3 Notes: Scale Drawings and Models

Scale Drawings Determine the rate for ratios of quantities with different units.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Presentation transcript:

Scale Drawings By Barb Leach 7 th Grade Mathematics Owensville Middle School

Scale Drawings MA, NO, 3, E, 07 Solve problems involving proportions, such as scaling and finding equivalent ratios

Career Areas Mapmakers use scales as they determine the size a map will be. Craftspeople who construct models of ships, automobiles, or other objects need to determine a scale to create an authentic reproduction of the desired size.

Vocabulary Scale: the ratio of the distance on a map to the actual distance Example: 1 cm = 100 miles Scale Drawing: a drawing that is similar but either larger or smaller than the actual object, for example, a road map or a building blueprint.

Example Architects draw buildings to scale in blueprints. A room in a new home will be 4.6 meters long and 3.3 meters wide. If the scale of the blueprint is 1 cm = 2.5 m, what should the dimensions be in the scale drawing. LengthWidth Scale1 cm = l cmscale1 cm = w cm Actual2.5cm 4.6 mactual2.5cm = 3.3 m 2.5 x l = 1 x x w = 1 x l = 1.84 w = 1.32 The drawing length is 1.84 cm. The drawing width is 1.32 cm.

Practice Write and solve a proportion to find scale and actual distances.

Assessment Glencoe Math P. 334 do 1-8 Additional practice activity sheets

Resources/References Glencoe Mathematics Applications and Connections Course 2 copyright 2001 Scott Foresman-Addison Wesley Middle School Math Course 2 copyright 2002 Mailbox magazine reproducibles