What is the difference between a Waza and a Kata in martial arts?

Good answers here.

Waza means techniques.

Kata is a prearranged set of moves that contain your techniques and tactics.

Basically the instructor is saying that they don use prearranged sets of movements to teach techniques. They only teach techniques.

waze is technqiue, kihon waza would be basic technique.

kata is forms, its were all your techniques and tactics come from. their a set of prearrange movements,

Waza Karate

Waza is a technique that is learned in order to perform kata.

Kata is pre prepared set of waza (forms) that are done.

Judo ends with the word "do" this means "the way of" while jujitsu end with "jitsu" which means "the application of". Judo is a sport adaptation of a martial art that the samurai practiced. ( also, Judo did not have any striking prior to Funakoshi bringing karate to main land japan which he taught at the Judo dojo where it gained in popularity) Jujitsu is an actual martial art intend for self defense applications. This is not to say one is better than the other. Just different.

Waza means techniques. It's an umbrella term for any type of technique. "tache waza" = standing techniques and "ne waza" = ground techniques, for example.

Not sure what kata translates to but it's just forms. Prearranged moves to get you familiar with the technique involved in each move.