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Authoritative PPT Summary
"Fraction Division (3)" Fraction Division PPT (Lesson 1)
Part One: Learning Objectives
1. Be able to use equations to solve simple practical problems related to fraction division, and master the steps of using equations to solve practical problems. (emphasis)
2. Ability to correctly find equivalence relationships in practical problems. (difficulty)
Fraction division PPT, part 2: exploring new knowledge
Knowledge points: The problem-solving method of "Given what fraction of a number is, find this number"
Knowledge refining
Given what fraction of a number is, find the solution to this number:
Drawing method: draw the corresponding schematic diagram according to the meaning of the question and answer it.
Equation method: Let the unit "1" be the unknown number x, find the equivalent relationship in the question based on the meaning of fraction multiplication, list the equations and solve them.
Arithmetic method: Calculate directly by division, that is, divide the partial quantity by what fraction of the unit "1" it occupies.
Fractional division PPT, part 3: consolidation practice
1. The clothing store is running a promotion and all clothing is on sale at 20% off.
(1) How much is the original price of this dress? Draw a picture and think about it.
(2) Can you find the equivalence relationship in the question?
(3) Use equations to solve problems.
2. Li Jian’s height is 150cm. (Selected from textbook P61 T2)
(1) Li Jian’s height is 15/16 of his mother’s height. How many centimeters is his mother’s height?
(2) Mom’s height is 8/9 of dad’s height. How many centimeters is dad’s height?
3. Solve equations (selected from textbook P61 T3)
Fraction division PPT, part 4 content: Class summary
What knowledge have you learned in this class?
To solve the practical problem of "what fraction of a number is known, find this number", use the column equation method to calculate. In this type of question, if the unit "1" is ?, then list the equivalent relationship based on the meaning of fraction multiplication and solve this equation, you can answer this question.
Fraction division PPT, part 5: homework
Assignment 1: Complete the exercises related to the textbook.
Assignment 2: Complete the corresponding exercises.
Keywords: Beijing Normal University edition fifth grade mathematics PPT courseware for volume 2 free download, fraction division PPT download, .PPT format;
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"Fraction Division (3)" Fraction Division PPT (Lesson 2):
"Fraction Division (3)" Fraction Division PPT (Lesson 2) Part One: Learning Objectives 1. Use equations to solve practical problems related to simple fractions. (Key points) 2. Analyze the relationship between quantities in fraction division word problems. (Difficulty) ... ... ... Score..
"Fraction Division (2)" Fraction Division PPT (Lesson 2):
"Fraction Division (2)" Fraction Division PPT (Lesson 2) Part One: Learning Objectives 1. Further master the calculation method of dividing a number by a fraction, and be able to calculate correctly. (Key points) 2. Understand the rules of the relationship between the quotient and the dividend, and be able to...
"Fraction Division (2)" Fraction Division PPT (Lesson 1):
"Fraction Division (2)" Fraction Division PPT (Lesson 1) Part One: Learning Objectives 1. Further learn fraction division, master the calculation method of dividing a number by a fraction, and be able to calculate correctly. (Key Points) 2. Understand the difference between dividing by a non-zero number and...