Go to the Khan Academy main page and start looking for a lesson. There are a bunch of them on there, over 2,100 lessons on several different levels of math as well as other subjects. One things Khan Academy has going is that the lesson are arranged in order to a great extent. There has been considerable care in arranging lessons in much the same order they would be found in a text book.
The problem is that a student who needs to find lessons on trigonometry functions may have no idea where to look. Now I hope that what I am going to write next does not offend anyone, but I just have to point this out because I am guessing that there are quite a few who may not ever find this unless they are told. I am learning more and more, that what is often obvious for some is a revelation for others.
In the upper right hand corner of the screen, there is a search bar which works exclusively with the lessons on the site, and it works well. For example, type in “trig functions” and up pops several trig lessons, but this is not all. When just the word “trig” is entered in the box, there are two playlists listed. When clicking on the playlist, users are taken directly to the entire trigonometry chapter where all the related lessons can be viewed in a hierarchical means of learning the content.
Whenever I approach a teacher with a new web tool, much of the apprehension stems from the extra time it is going to take in learning how to use the new tool and then also the time in teaching the students how to use the tool. Khan Academy is not like most sites I have seen.
It is easy. That is really the only way to put it.
One other note of interest: When looking at lessons, and especially when teaching students to use the lessons, pay special attention to the comments at the end of each lesson. If there is something that Khan has left out in his tutorial, the answers to questions can often be found in the comments. In one comment thread, learners were discussing how to use the calculator correctly to do the work outlined in the video. Someone had a question and five people responded with help.
Okay, I did it again. I went back and talked about Khan Academy! I just can’t seem to get away from it this week.
If anyone has ideas on how to use this or other tips for using the site, I would enjoy hearing from you. Have a great day!
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