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Is memorizing the formulae a pre-requisite for learning addition and subtraction well? Please share your opinions and give examples using 5’s complement addition and 5’s complement subtraction.
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Please give examples using 10’s complement addition and 10’s complement subtraction formulae (In the example, include both 5’s and 10’s formulae and explain the differences).
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Please give example of 10’s mixed addition and subtraction (List the 10 common examples before you demonstrate)
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Please demonstrate how to conduct mental arithmetic with listening (one digit and two digits). Please explain the focus and timing to start this exercise.
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Please demonstrate how to conduct mental arithmetic with reading (one digit). Please explain the focus and timing to start this exercise
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Please give an example of addition and subtraction where students make common mistakes. For example, students always make a mistake of 1 or 2 in their answer.
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Please explain the focus of abacus 2-digit addition (especially on moving into 50, moving into 100 and mixed formulae addition)
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Please explain the focus of 2-digit subtraction (especially subtracting from 50, 100 and mixed formulae subtraction)
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Please demonstrate how to do multiplication on abacus (setting place, 2 x 1, 3 x 1 and 2 x 2)
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Please demonstrate how to do division on abacus (setting place, 3 ÷ 1, 4÷1)
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Please give examples of common mistakes students make when doing 2-digit addition and subtraction. For example, a difference of 10 in answers, missing a number, repeating a number, putting the number in the wrong place, switching the place etc.
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Please demonstrate how to do addition and subtraction with fractions on the abacus (explain the concept of dimes and cents, how to write answers)
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Please demonstrate how to do 4 ÷ 2 division (no over-quotient). Give examples of different positions of quotients on abacus in different scenarios (large divisor and small divisor)
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Please demonstrate how to do 4 ÷ 2 division (over-quotient). Give examples of over-quotient by one, over-quotient by two and over-quotient by three or more)
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Please demonstrate how to do 4 ÷ 2 division (same-first digit). Give examples of different questions in which the second digits in divisors are either big or small
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Please demonstrate how to do 5 ÷ 2 division. Explain the difference between questions in which the answer has a zero in the middle or at the end.
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Please demonstrate how to do 5 ÷ 3 division. Explain what to do when the third digit of the divisors is an over-quotient.
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Please demonstrate how to do 3 x 3, 2 x 4, 4 x 2 multiplication. Give example of head-to-head multiplication and small times big multiplication)
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Please explain the focus of 2 x 1, 3 x 1 mental multiplication and 3 ÷ 1, 4 ÷ 1 division
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Please demonstrate how to solve for square roots (2-digit integers). Explain the steps and half of squares formulae.
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Please demonstrate how to do addition and subtraction with fractions and negative numbers. (Focus on solving the questions from the highest place and writing answers)
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Demonstrate how to do solving for square roots (3-digit integers)
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Demonstrate how to do solving for square roots (3-digit fractions)
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Demonstrate how to do Level 3 multiplication (name numbers). Explain setting place, rounding and find answer to the requested place.
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Demonstrate how to do Level 3 multiplication no (name numbers). Explain setting place, rounding and find answer to the requested place.
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Demonstrate how to do Level 3 division (name numbers). Explain setting place, rounding and find answer to the requested place.
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Demonstrate how to do Level 3 division (no name numbers). Explain setting place, rounding and find answer to the requested place.
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Demonstrate consecutive multiplication and division, and primary operations questions.
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Demonstrate how to do mental multiplication 2 x 2, 2 x 3, 3 x 2. Explain the connect between student’s mental addition and subtraction capability and mental multiplication capability. Explain methods.
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Demonstrate how to do mental division 4 ÷ 2. Explain the different methods for regular, over-quotient and same-first digit questions.
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Demonstrate how to do Level 1 and 2 multiplication on abacus. Explain the advantage and disadvantages of the different methods (setting place last, small times big)
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Demonstrate how to do Level 1 and 2 division. Explain how to determine the place values of the dividends and divisor and how to use omission to save time.
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Demonstrate how to use omission techniques for multiplication (name number and no name number). Explain the omission techniques and things to pay attention to when using this method.
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Demonstrate how to use omission techniques for division (name number). Explain the omission techniques and things to pay attention to when using this method.
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Demonstrate how to use omission techniques for division (no name number). Explain the differences between numbers that are dividable and not.
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Demonstrate how to solve for cubic roots (2-digit integers). Explain the steps and how to do returning.
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Demonstrate how to solve for cubic roots (3-digit integers). Explain the steps and what to do when the divisors are over 100.
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Share your favorite mathematic or numerical games that can be played with students (2 to three games)
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Please explain how one-way clear method works. Compare the one-way clear method for addition and subtraction, multiplication and division with the current methods.
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Share your special experience and inspiration when teaching. They can be anything regarding teaching, competition, instructor training, certification exams etc.