inquiry(at)summit-esl.com

1000 Common English Words Workbook!  

We now have our complete "1000 Common English Words with Example Sentences" YouTube series available as a workbook for you to use in your studies.

Get yours today!

Math Videos


video_img

Easy Addition with the Abacus (Soroban): 1 digit + 1 digit, Part 3

This video provides examples of easy, single-digit addition with the abacus, including what to do when there are no more beads left on the bottom. Part 3 (final) of a series.
video_img

Easy Addition with the Abacus (Soroban): 1 digit + 1 digit, Part 2

This video provides examples of easy, single-digit addition with the abacus, including what to do when there are no more beads left on the bottom. Part 2 of a series.
video_img

Easy Addition with the Abacus (Soroban): 1 digit + 1 digit, Part 1

This video provides examples of easy, single-digit addition with the abacus, including what to do when there are no more beads left on the bottom. Part 1 of a series.
video_img

Finger Practice Exercises for the Soroban (Japanese Abacus): Adding 1 – 100

A great practice for training your fingers to manipulate the abacus beads is to add the counting numbers from 1 to 100. (This exercise is also good practice for getting used to adding all different combinations of numbers that you might encounter.) It is…
video_img

Finger Practice Exercises for the Soroban (Japanese Abacus): Adding 165

Here is a simple yet effective finger exercise for the soroban, suitable as a warm-up exercise. Try to do this exercise as quickly as possible, without sacrificing accuracy. Daily practice will help you to develop speed, agility, and accuracy in your aba…
video_img

Alternating Adding and Subtracting with the Soroban (Japanese Abacus)

In this video I give an extended example of adding and subtracting with the soroban. Alternating back and forth between addition and subtraction is a good exercise for reinforcing the techniques used in each operation - you really have to keep track of wh…
video_img

Addition Using a Soroban (Japanese Abacus)

A quick example illustrating adding 3 four-digit numbers using the soroban. This example also shows how to manipulate the beads when all the beads in the column immediately to the left of your working column are "full" (i.e., addition with regrouping/carr…
video_img

Solving a Quadratic Equation by Completing the Square

How to use the process of completing the square to solve a quadratic equation.
video_img

How to Multiply Using a Soroban (Japanese Abacus), Part 2

How to manipulate the beads to perform multiplication using the soroban (Japanese abacus).
video_img

How to Multiply Using a Soroban (Japanese Abacus), Part 1

How to perform left-to-right multiplication, necessary for multiplying using the soroban (Japanese abacus).
video_img

How to Subtract Using a Soroban (Japanese Abacus)

How to perform subtraction using a soroban (Japanese abacus).
video_img

How to Add Using a Soroban (Japanese Abacus)

How to perform addition using a soroban (Japanese abacus).

Want a video on a particular subject? Let us know!

Leave a Reply



(Your email will not be publicly displayed.)


Captcha Code

Click the image to see another captcha.