13. Using Custom Nerve

You may create your own nerves and use them for simplifying your cells and many other purposes.

The Problem

To help students review the words they have learnt, the Tutor will show a picture of classroom and ask them what is in the classroom. The students are required to name an item each time. The items include:

  • A picture
  • Two blackboards
  • Two doors
  • Three windows
  • Six lights
  • Many desks and chairs

For this drill we don't care the accuracy too much. It's OK as long as the students mention one of the items. So we choose to use * for fuzzy cells as below.

Example 1.

  • Cell 1
    • Picture
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the calssroom</set-context>
           
  • Cell 2
    • Picture *
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           
  • Cell 3
    • * picture *
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           
  • Cell 4
    • * picture
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           

The above four cells together cover any sentences that contain the word "picture". And we also need to cover the plural form of picture:

  • Cell 5
    • pictures
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           
  • Cell 6
    • Pictures *
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           

...

Wait a minute! Can we avoid repeating the context and output again and again? As always we want to simplify the creation of cells and make your life as brainmaster easy a bit!

The Solution

Use custom nerve. Nerve, like a Swiss military knife, can be used for many purpose. Herein we just use it for simplifying cells. Firstly you create a new nerve that include the words below.

  • picture
  • pictures
  • blackboard
  • blackboards
  • door
  • doors
  • window
  • windows
  • light
  • lights
  • desk
  • desks
  • chair
  • chairs

This is how.

  1. Click Nerves tag.
  2. Click Add icon.
  3. Enter "itemInClassroom" as nerve title.
  4. Click Save button.

We now get a new nerve "itemInClassroom." Next we add neurons to it.

  1. Click itemInClassroom.
  2. Click Add icon.
  3. Enter "picture" in the Input box.
  4. Leave the Output box empty and click Save button.

A new neuron "picture" is created for nerve "itemInClassroom." Repeat the above steps to add other words. Finally we get a nerve as below.

  • Nerve: itemInClassroom
    • picture
    • pictures
    • blackboard
    • blackboards
    • door
    • doors
    • window
    • windows
    • light
    • lights
    • desk
    • desks
    • chair
    • chairs

The nerve above is simply a list of words. It can be used to represent any of its members (neurons) in cell Input, as the below cell demonstrates.

Example 2. Cells with nerve

  • Cell A
    • <nerve>itemInClassroom</nerve>
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           

With nerve as a wildcard in Input, a single cell is able to handle any item in the classroom. As we take an answer correct as long as it mentions the item, despite possible grammar mistakes, we continue to add the below three cells to cover all answers.

  • Cell B
    • <nerve>itemInClassroom</nerve> *
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           
  • Cell C
    • * <nerve>itemInClassroom</nerve> *
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           
  • Cell D
    • * <nerve>itemInClassroom</nerve>
    • <strong/>what s in the classroom
    • Good! Next?
              <set-context>what s in the classroom</set-context>
           

That's it. With nerve, you only need to create four cells. Plus the nerve is reusable, it may improve your productivity in creating cells greatly.

Things to Keep in Mind

  • You may use nerve to represent a set of members.
  • Using nerve may simplify cells.