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# Conversions

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A guide for parents of struggling fifth grade students, especially in the area of conversions.

A guide for parents of struggling fifth grade students, especially in the area of conversions.

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### Transcript

• 1. Conversions A guide for parents of fifth grade students who struggle with conversions.
• 2. Before we can begin… <ul><li>C us tomary measurement – used in US A </li></ul><ul><li>M e tric measurement – used almost e verywhere else! </li></ul>Length – how long? Capacity – how much does it hold? Mass – weight? Temperature – how hot/cold?
• 3. Customary Measurement Units <ul><li>Length – inches, feet, yards, miles </li></ul><ul><li>Capacity – fl oz, cup, pint, quart, gallon </li></ul><ul><li>Mass – ounces, pounds, tons </li></ul><ul><li>Temperature - Fahrenheit </li></ul>
• 4. Metric Measurement Units <ul><li>Length – millimeter, centimeter, meter, kilometer </li></ul><ul><li>Capacity – milliliter, liter </li></ul><ul><li>Mass – milligram, gram, kilogram </li></ul><ul><li>Temperature - Celsuis </li></ul>*Metric units are based on powers of ten – the examples given are the common units. Others do exist – see child’s notebook for more.
• 5. Customary to Metric Conversions Length Kilometers 1.6 Miles Meters 0.9 Yards Centimeters 30.5 Feet Centimeters 2.54 Inches To Find Multiply By When You Know
• 6. Customary to Metric Conversions Capacity Liters 0.24 Cups Liters 3.8 Gallon Liters 0.95 Quarts Liters 0.47 Pints Milliliters 30 Fluid Ounces To Find Multiply By When You Know
• 7. Customary to Metric Conversions Mass &amp; Temperature Celsius -30 ÷2 Fahrenheit Kilograms 0.45 Pounds Grams 28 Ounces To Find Multiply By When You Know
• 8. Sample Problem <ul><li>Use the previous charts to help answer this question: </li></ul><ul><li>Matthew ride his bike 3 miles to the park, 1.5 miles on the bike trail, and comes home the same way. How many kilometers did Matthew ride on his bike? </li></ul>
• 9. Solution to Sample Problem <ul><li>Matthew rode 3 miles to the park, 1.5 miles at the park, and 3 miles back home. </li></ul><ul><li>3 + 3 + 1.5 = 7.5 miles </li></ul><ul><li>How many kilometers did he ride? </li></ul><ul><li>7.5 miles x 1.6 = 12 kilometers </li></ul>
• 10. Sample Problem 2 <ul><li>Now try this one: </li></ul><ul><li>A fish tank holds 5 gallons of water. If 2 gallons are removed, how many liters of water remain in the fish tank? </li></ul>
• 11. Solution to Sample Problem 2 <ul><li>Fish tank is holding 5 gallons minus 2 gallons . </li></ul><ul><li>5 – 2 = 3 </li></ul><ul><li>How many liters are remaining? </li></ul><ul><li>3 gallons x 3.8 = 11.4 liters </li></ul>
• 12. Metric to Customary Conversions Length Miles 0.6 Kilometer Yard 1.1 Meters Feet 3.3 Meters Inches 0.4 Centimeters To Find Multiply By When You Know
• 13. Metric to Customary Conversions Capacity Gallons 0.26 Liters Quarts 1.05 Liters Pints 2.1 Liters Fluid ounces 0.03 Milliliters To Find Multiply By When You Know
• 14. Metric to Customary Conversions Mass &amp; Temperature Fahrenheit x2 +30 Celsius Pounds 2.2 Kilograms Ounces 0.035 Grams To Find Multiply By When You Know
• 15. Sample Problem <ul><li>Jose wears a sweater when it is 40ºF, a jacket when it is 60ºF, and a t-shirt when it is 80ºF. He looks outside and the temperature is 25ºC. What will he choose to wear that day? </li></ul>
• 16. Solution to Sample Problem <ul><li>Jose wears a sweater when it is 40ºF , a jacket when it is 60ºF , and a t-shirt when it is 80ºF . He looks outside and the temperature is 25ºC . What will he choose to wear that day? </li></ul><ul><li>25 x 2 = 50 + 30 = 80… so a t-shirt! </li></ul>
• 17. Sample Problem 2 <ul><li>Mr. Alvarez’s dog weighs 50 kilograms. Mr. Alvarez weighs 150 pounds. Who weighs more – Mr. Alvarez or his dog? </li></ul>
• 18. Solution to Sample Problem 2 <ul><li>Mr. Alvarez’s dog weighs 50 kilograms . Mr. Alvarez weighs 150 pounds . Who weighs more – Mr. Alvarez or his dog? </li></ul><ul><li>Dog: 50 kg x 2.2 = 110 pounds </li></ul><ul><li>Mr. Alvarez = 150 pounds </li></ul><ul><li>… so Mr. Alvarez weighs 40 pounds more. </li></ul>
• 19. Additional Resources <ul><li>All Math - plug in data &amp; change units </li></ul><ul><li>IXL – Your child has username &amp; password </li></ul><ul><li>E-How – a great website for parent/student interaction </li></ul><ul><li>Yahoo! Kids – great games to practice conversions </li></ul>
• 20. Remaining Questions??? <ul><li>If you have remaining questions, comments, or suggestions for improvement, please e-mail me at: </li></ul><ul><li>[email_address] </li></ul>