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TOPIC B:
TOPIC B:
Dear Family,
Your student is learning various methods to multiply two fractions. They partition, or divide,
number lines and area models to multiply fractions less than 1 and greater than 1. Students
learn they can make a simpler problem by reasoning about the factors before they multiply.
They use unit language and known products to make simpler problems and practice comparing
expressions with two fractions without evaluating. Students recognize that the size of the
factors affects the size of the product.
KEY TERMS
convert
cup
denominator
gallon
mixed number
numerator
ounce
pint
pound
product
quart
quotient
whole number
AT HOME ACTIVITY
Find a sample of our lessons below to help support MATH TALK at home.
Students also have these in their APPLY workbook.
Lesson 7
Multiply fractions less than 1 by unit fractions pictorially.
To multiply a unit fraction and a fraction less than 1, I can partition a number line or an area model to help me find the product.
EM2_G5_M3_TB_L07_PracticePartner (1).pdfEM2_G5_M3_TB_L07_PracticeSolutions (1).pdfLesson 8
Multiply fractions less than 1 pictorially.
When I multiply fractions less than 1, I can partition a number line or an area model to help me find the product.
EM2_G5_M3_TB_L08_PracticePartner.pdfEM2_G5_M3_TB_L08_PracticeSolutions.pdfLesson 9
Multiply fractions by unit fractions by making simpler problems.
I can use what I know about multiplying a whole number by a fraction to help make simpler problems. I can use unit language to help find products when I notice a relationship between the denominator of one fraction and the numerator of the other fraction.
EM2_G5_M3_TB_L09_PracticePartner (1).pdfEM2_G5_M3_TB_L09_PracticeSolutions (1).pdfLesson 10
Multiply fractions greater than 1 by fractions.
4/5×9/7=(1/5×1/7)×(4×9)=1/35×36=36/35
I can use known products and unit language to multiply fractions greater than 1, by fractions. I can check my answer by using an area model.
EM2_G5_M3_TB_L10_PracticePartner.pdfEM2_G5_M3_TB_L10_PracticeSolutions.pdfLesson 11
Multiply fractions.
When I multiply a number by a fraction less than 1, the product is less than the number. When I multiply a number by a fraction greater than 1, the product is greater than the number. I can use similar reasoning to help me compare multiplication expressions without evaluating them.
EM2_G5_M3_TB_L11_PracticePartner.pdfEM2_G5_M3_TB_L11_PracticeSolutions.pdfReport abuse