Rachel
About
Khan Academy on a Stick
Símbolos "más grande que" y "menor que"
Desigualdades : Fundamentos de "más grande que" y "menor que"
Símbolos "más grande que" y "menor que"
Trazar desigualdades en un recta numérica
Desigualdades en la recta numérica
Your browser does not support video. Please get the latest version of Google Chrome, Firefox, IE, or Safari. Alternately, you can try the link below if you have VLC or another media player installed.
If the above player doesn't work, you can
try this direct link
.