
# 1.2: Minicourse Skills Page - Hiding Answers, Solutions or Notes


## Introduction

Hidden Text opens up when a link word is clicked.

Why would we want to use this feature?

This feature can help students pause to think of their own answer before clicking on the link.

Where might you want hidden text?
• Solutions to odd exercises

• Proofs for theorems

• Click the Edit button on the top black taskbar.
• Click at the end of this list, below Insert your Hidden Text here:
• Select Elements.
• Choose Templates, then select Template: AddHiddenText
• Click Insert template.
• Now you can replace the Answer with whatever you want visible to the reader. This is what the reader will click on to view the hidden text.
• Next replace Add texts here. Do not delete this text first.  with: This is hidden!! (or whatever you'd like).
• SAVE the page to see how it works!

## Modify an Example to have a Hidden Solution

Now let's hide the Solution to Example 1 below.

• Click the Edit button on the top black taskbar.
• Place your cursor at the start of the word Solution in the Example below.
• Select Elements.
• Choose Templates, then select Template: AddHiddenText
• Click Insert template.
• Now you can replace the Answer with the word Solution.
• Copy the text below Solution and paste it on top of Add texts here. Do not delete this text first.
• SAVE the page to see how it works!!

Example $$\PageIndex{1}$$

Let $$A = \{\mbox{John}, \mbox{Jim}, \mbox{Dave}\}$$ and $$B = \{\mbox{Mary}, \mbox{Lucy}\}$$. Determine $$A\times B$$ and $$B\times A$$.

Solution

We find $\displaylines{ A\times B = \{ (\mbox{John},\mbox{Mary}), (\mbox{John},\mbox{Lucy}), (\mbox{Jim}, \mbox{Mary}), (\mbox{Jim}, \mbox{Lucy}), (\mbox{Dave},\mbox{Mary}), (\mbox{Dave},\mbox{Lucy})\}, \\ B\times A = \{ (\mbox{Mary},\mbox{John}), (\mbox{Mary},\mbox{Jim}), (\mbox{Mary},\mbox{Dave}), (\mbox{Lucy},\mbox{John}), (\mbox{Lucy},\mbox{Jim}), (\mbox{Lucy},\mbox{Dave})\}.}\nonumber$ In general, $$A\times B \neq B\times A$$.

1.2: Minicourse Skills Page - Hiding Answers, Solutions or Notes is shared under a CC BY-SA license and was authored, remixed, and/or curated by Paul Seeburger.