WARM UP 1.Do ACT Prep Passage B – Stickleback Fish. Start when the bell rings.

Slides:

Advertisements

Similar presentations

Any quantity we measure,( length, mass, volume… ) a number and unit consists of a number and unit If we are given a quantity in one type of unit, and.

Advertisements

SL#14 How to use Conversion Factors (a.k.a. Dimensional Analysis)

Dimensional Analysis.

Dimensional Analysis Problem Solving

Converting Customary Units

Converting Customary Measurement Units

Metric Conversions Factoring Label Method T. Trimpe 2008

PO D × basic advance d ÷ Convert Between Measurement Systems Type of MeasureCustomary  Metric Length 1 inch (in.) ≈ 2.54 centimeters.

Dimensional Analysis (aka Factor-Label)

Converting from English to Metric Units Use conversion factors that are exact by definition 1 inch = 2.54 cm 1 ounce = g 1 quart = 0.946L or 946.

MODULE A - 5 Conversion and Cancel.

Metric and Non-Metric Conversion Problems.

Dimensional Analysis. The Factor-Label Method In this method, a quantity described in one unit is converted into an equivalent quantity described in one.

Warm Up Multiply. Write answers in simplest form:

Dimensional Analysis. The objective is to convert one unit to another unit.

Let’s review! Make 2 solids. Use no more than 8 blocks for each. Sketch the front, right side, and top views for each. At the start of class, everyone.

“The Chemist’s Toolkit”

Factor-Label Method Math technique used for conversion problems. Not the same as the proportion technique. More powerful in multistep problems.

Using the Factor Label Method. 34,000,000 = 7.29 x 10 5 = = 5.6 x = 3.4 x , x

Chapter 2 Conversion Factors

Rounding If the number to the right of the number you are rounding to is 5 or more, you round up, otherwise you do not => with 4 sig.

 Problem solving involves developing a plan, and mapping out a pathway through a problem before solving.  Any two measurements that are equal to one.

Using the Factor Label Method. “That costs five.”

What does conversion mean? A change in the units or form of a number or expression.

Name: Unit Analysis.

m = 1 ___a) mm b) km c) dm g = 1 ___ a) mg b) kg c) dg L = 1 ___a) mL b) cL c) dL m = 1 ___ a) mm b) cm c) dm Learning.

The following lesson is one lecture in a series of Chemistry Programs developed by Professor Larry Byrd Department of Chemistry Western Kentucky University.

 Quick! Tell me how many seconds are in a year!!!!

 Fold and cut paper as instructed  Label each section  Rectangle  Triangle  Trapezoid  Circle  Write formulas for perimeter and area under each.

Chapter 7: Unit Conversions (Proportion method) If a student weighs 80 kg, how much does he weigh in pounds? Step 1. Find a conversion factor that relates.

Factor-Label Technique (aka Dimensional Analysis) This technique involves the use of conversion factors and writing all measurements with both numerical.

DIMENSIONAL ANALYSIS DIMENSIONAL ANALYSIS A.K.A FACTOR-LABELING USING UNITS TO SOLVE A MATH PROBLEM.

How can we convert units?.  Every measurement needs to have a value (number) and a unit (label).  Without units, we have no way of knowing what the.

CLE.3231.Math.1 Graph relationships and functions between manipulated (independent) variables and responding (dependent) variables.CLE.3231.Math.2 Solve.

Chemistry Notes: Dimensional Analysis.  In Chemistry and every-day life you will often need to express a measurement using a different unit than the.

Mullis1 GETTING FROM ONE UNIT TO ANOTHER: Dimensional Analysis aka. Factor Labeling Method.

Unit Conversions use fractions/ratios to change the units of measurement We “cross-cancel” units Units are common factors on top and bottom Use Formula.

Chapter 1.3 Conversion Factors and Unit Cancellation.

 A technique for solving problems of conversions.

WARM UP ACT Prep Passage V 5 minutes Start when the bell rings.

WARM UP Do ACT Prep #2 – Pressure and Volume Begin when the bell rings. 5 minute time limit.

WARM UP 1.List 5 metric units, their symbol, and the quantity they measure. 2.Convert 4.5 g to ng.

ACT Prep Passage V 5 minutes Start when the bell rings

Metric Units and Conversions

Section 1.3 Problems Question 1

Dimensional Analysis.

WARM UP Do ACT Prep Passage 5 – Reducing Pollution 5 minutes

Start when the bell rings

Friday trivia Warm-up Lesson 6 Exit card

Dimensional Analysis Math technique used for conversion problems.

Converting Customary Units

Metric Units and Conversions

ACT Prep Passage 1 – Ecological Succession Begin when the bell rings

Express in simplest form:

Dimensional Analysis w/ Metric Units and Conversions

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

4.7 Ratios, Proportions, & Converting Units of Measure

Conversions with Factor Label

Metric Units and Conversions

Dimensional Analysis Review.

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Ratios 4 Possible Ways to Write a Ratio #1

Dimensional Analysis Why do it?.

SL#14 How to use Conversion Factors (a.k.a. Dimensional Analysis)

Intentions for success:

Metric Units and Conversions

Agenda Warm-up Lesson 5 hw corrections Lesson 6: converting measures

Warm Up Problem of the Day Lesson Presentation Lesson Quizzes.

Dimensional Analysis (aka Factor-Label)

Presentation transcript:

WARM UP 1.Do ACT Prep Passage B – Stickleback Fish. Start when the bell rings.

Mathematical Expressions

Units Numbers need units to be meaningful –14 ???? grams, pounds, kilograms, tons?

Formulas One unit is determined by a mathematical operation using two (or more) other units –area = l x w –d = m/v –e = mc 2

Formulas You can rearrange the equation to solve for an unknown unit –w = area / l –m = dv –m = e / c 2

Practice

Factor – Label Method Allows you to convert from one unit to another –Miles to feet –m to km

Factor – Label Method Need a conversion factor that represents how the two units are related –1 mile = 5,280 feet –1 km = 1,000 m

Factor – Label Method Conversion Process 1.Write known number, with unit, as a fraction 244 rolls 1

Factor – Label Method Conversion Process 1.…. 2.Write conversion factor as a fraction, with desired unit on top 244 rolls 1 dozen rolls 1 12 rolls

Factor – Label Method Conversion Process 1.… 2.… 3.Multiply the fractions and cancel the units rolls 1 dozen rolls 1 12 rolls x

Practice

WRAP UP Give one reason units are important. Use the factor-label method to convert 19 quarts into gallons.